CN107554549B - Guide system on train bogie and working method thereof - Google Patents
Guide system on train bogie and working method thereof Download PDFInfo
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- CN107554549B CN107554549B CN201710847566.1A CN201710847566A CN107554549B CN 107554549 B CN107554549 B CN 107554549B CN 201710847566 A CN201710847566 A CN 201710847566A CN 107554549 B CN107554549 B CN 107554549B
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Abstract
The invention discloses a guide system on a train bogie and a working method thereof, wherein a bearing wheel system and a guide system are arranged on the train bogie, the guide system comprises a guide shaft mounting frame arranged on the bearing wheel system and a guide shaft box arranged on the guide shaft mounting frame, a guide shaft is vertically arranged in the guide shaft box, the lower part of the guide shaft corresponds to the inner side of a steel rail, and the guide shaft is provided with a power device. The functions are as follows: the guide shaft in the guide system can replace the cancelled wheel rim on the bearing wheel to play the role of guiding the train bogie, so that the guide system can be used for eliminating the length difference between the steel rail side grinding device and the inner rail and the outer rail of the coordination curve section.
Description
Technical Field
The invention belongs to the technical field of rail transit, and particularly relates to a guide system on a train bogie and a working method thereof.
Background
As shown in fig. 8, a schematic diagram of a conventional load-bearing wheel structure is shown, wherein a rim 25 is provided on a load-bearing wheel 24, and the rim 25 on the load-bearing wheel 24 is provided to guide a train bogie, but because the radius of a tread surface of the load-bearing wheel bearing a vertical load is different from the radius of the rim 25 of the load-bearing wheel 24, the corresponding linear speed of the wheel set during rotation is different, and during the advance of the train, the linear speed of the train relative to the rail top and the rail side is the same. Therefore, when the flange 25 of the bearing wheel 24 comes into contact with the side surface of the rail, sliding friction inevitably occurs, resulting in side grinding of the rail.
In addition, the tread of the bearing wheel 24 of the traditional train is provided with the conicity of 1/20-1/40, however, when the bearing wheel passes through a curve section, the train wheel pair is poked outwards by the centrifugal force of the train, and the bogie coordinates the difference of the lengths of the inner rail and the outer rail of the curve section. However, the length difference between the inner rail and the outer rail of the bogie coordination curve section has randomness and uncontrollable property, and the outward pulling force of the train wheel set is influenced by the running speed, the set superelevation value of the curve section, the line state of the curve section and the like, and the inter-wheel-rail distance. The maximum amount of lateral shifting of the train load wheel 24 is limited due to the presence of the rim 25 of the conventional train load wheel 24. Therefore, when the train passes through a curved section, sliding friction is inevitably generated between the tread of the bearing wheel 24 and the top surface of the steel rail due to the length difference between the inner rail and the outer rail, namely, the top of the steel rail is vertically abraded.
In order to simultaneously eliminate the side grinding and the vertical grinding of the steel rail, a guide wheel system of a train bogie is necessary, and the system requires that only transverse relative sliding can be carried out on a guide wheel mounting frame relative to a wheel pair axle box, and vertical relative movement is not carried out, so that the guide wheels are ensured not to be separated from the steel rail, the derailment accident of the train is avoided, and meanwhile, transverse shifting relative to the wheel pair is realized; meanwhile, the guide wheel mounting frame can only slide vertically relative to the bogie, and does not move transversely relative to the bogie, so that the guide effect of the guide wheel on the bogie is ensured, and the derailment accident of the train is avoided. Through the design, the vibration reduction of the bogie is not influenced, the train is prevented from derailing, the side grinding between the bearing wheels and the steel rail is effectively eliminated, and meanwhile, a foundation is laid for the control device and the method for actively coordinating the length difference of the inner rail and the outer rail when the train passes through a curve section.
Disclosure of Invention
The invention aims to provide a guide system on a train bogie and a working method thereof according to the defects of the prior art, the guide system eliminates the side grinding of a steel rail by canceling a rim on the original bearing wheel, and realizes the guide of the train bogie by the rotary contact of the guide shaft on the mounting frame and the side surface of the steel rail in the running process of a train by fixedly mounting the mounting frame with the guide shaft on the axle box of the rim-free bearing wheel.
The purpose of the invention is realized by the following technical scheme:
the guiding system on the train bogie is characterized in that the guiding system comprises a guiding shaft mounting frame mounted on the bearing wheel system and a guiding shaft box mounted on the guiding shaft mounting frame, a guiding shaft is vertically arranged in the guiding shaft box, and the lower part of the guiding shaft corresponds to the inner side of a steel rail.
The guide shaft consists of an upper large-diameter section, a lower small-diameter section and a middle transition section for connecting the upper large-diameter section and the lower small-diameter section; the diameter of the upper large-diameter section is 100-200mm; the diameter of the lower small-diameter section is 25-30mm, the height of the lower small-diameter section is 60-70mm, and the lower end face of the lower small-diameter section is 25-30mm lower than the top face of the steel rail; the height of the middle transition section is 400-600mm; the center distance between the small-diameter sections of the lower parts of the guide shafts on the two sides is 1380-1396mm.
The upper large-diameter section is of a hollow structure, and the inner diameter of the hollow structure is 20-25mm.
The bearing wheel system comprises an axle, non-rim bearing wheels arranged on two sides of the axle and a shaft box supporting the axle to rotate, and the shaft box is arranged below the train bogie through a series of springs.
The guide shaft mounting frames are respectively mounted at the non-rim bearing wheels at two sides, are n-shaped and are formed by connecting and combining an inner side guide shaft mounting frame and an outer side guide shaft mounting frame; the end of the inner guide shaft mounting bracket is connected to the axle through an end axle box, and the end of the outer guide shaft mounting bracket is fixedly connected to the axle box.
The guide shaft box with on the bearing wheel system be connected between the guide shaft mounting bracket and be provided with level to sliding support, the guide shaft box with it is provided with vertical sliding support to connect between the train bogie.
The guide shaft power device is arranged on the guide shaft mounting frame and is connected with and drives the guide shaft through a guide shaft power transmission device.
A method of operation involving a guidance system on any of said train bogies, characterized in that said method of operation comprises the steps of: in the running process of the train, a guide shaft in the guide system rotates and guides, and the relative speed between the lower small-diameter section of the guide shaft and the theoretical contact surface of the side surface of the steel rail is controlled to be the same as the advancing speed of the train.
The rotating speed of the guide shaft is controlled by the guide shaft power device through the guide shaft power transmission device in a transmission way.
The guide shaft and the bearing wheel system slide transversely under the action of a horizontal sliding support and keep the same lifting and descending vertically, and the guide shaft and the train bogie keep relatively fixed transversely and generate relative displacement vertically under the action of a vertical sliding support.
The invention has the advantages that the structure of the guide system is simple, and the guide shaft can replace the cancelled wheel rim on the bearing wheel to bear the guide function of the train bogie, thereby eliminating the side grinding between the wheel rim and the steel rail; the guide shaft and the bearing wheel system can keep the same lifting and falling in the vertical direction and can move relatively in the transverse direction, so that the guide shaft is prevented from leaving the side part of the steel rail to cause guide failure, and meanwhile, the transverse displacement of the wheel pair can be controlled to realize the coordination of the length difference of the inner rail and the outer rail of a curve section; the guide shaft and the wheel pair can generate horizontal relative displacement, so that the transverse stirring amount of the wheel pair is increased; the guide shaft can be kept relatively fixed in the transverse direction with the train bogie, so that the guide shaft can effectively keep the transverse position of the train bogie and further effectively keep the transverse position of a carriage.
Drawings
FIG. 1 is a schematic structural view of a guide system and a bearing wheel system on a train bogie in accordance with the present invention;
FIG. 2 is a schematic view of a guidance system according to the present invention;
FIG. 3 is a schematic view of a guide shaft according to the present invention;
FIG. 4 isbase:Sub>A schematic cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
FIG. 5 is a schematic cross-sectional view taken along line B-B of FIG. 3 according to the present invention;
FIG. 6 is a schematic view of the structure of the non-rim bearing wheel of the present invention;
FIG. 7 is a schematic cross-sectional view taken along line C-C of FIG. 2 in accordance with the present invention;
fig. 8 is a schematic structural view of a bearing wheel with a rim in the prior art.
Detailed description of the preferred embodiments
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the following drawings to facilitate understanding by those skilled in the art:
referring to fig. 1-8, the labels 1-25 in the figures are: the device comprises a train bogie 1, a guide system 2, a vertical sliding support 3, a slide rail 3a, a slide block 3b, a load bearing wheel system 4, an axle box 5, an axle 6, a wheel flange-free load bearing wheel 7, a guide shaft mounting frame 8, a guide shaft power device 9, a guide shaft power transmission device 10, a guide shaft 11, a guide shaft axle box 12, an upper large-diameter section 13, a middle transition section 14, a lower small-diameter section 15, an outer guide shaft mounting frame 16, an inner guide shaft mounting frame 17, an end axle box 18, a rim 19, a spoke plate 20, a hub 21, an axle hole 22, a horizontal sliding support 23, a slide rail 23a, a slide block 23b, a load bearing wheel 24 and a wheel flange 25.
Example (b): as shown in fig. 1 and 4, the embodiment specifically relates to a guiding system on a train bogie and a working method thereof, wherein a bearing wheel system 4 and a guiding system 2 are arranged on the train bogie 1, a non-rim bearing wheel 7 is adopted in the bearing wheel system 4, so that side grinding between a rim and a steel rail is eliminated, and the guiding system 2 is installed on the bearing wheel system 4 and is used for guiding the train bogie 1 in the train running process.
As shown in fig. 1 and 4, the load-bearing wheel system 4 in this embodiment is fixed below the train bogie 1 via a series of springs (not shown, omitted), the load-bearing wheel system 4 specifically includes an axle 6, both sides of the axle 6 are supported by axle boxes 5 for rotation, and rim-less load-bearing wheels 7 are installed at both sides of the axle 6, the series of springs are specifically disposed between the axle boxes 5 and the train bogie 1; as shown in fig. 6, the center of the non-rim bearing wheel 7 has an axle hole 22, and the wheel hub 21, the spoke plate 20 and the rim 19 are arranged in sequence from the axle hole 22 to the outside, in order to eliminate the side grinding phenomenon of the steel rail, the non-rim bearing wheel 7 in the embodiment cancels the existing rim structure, and the whole outer side surface of the non-rim bearing wheel has a tapered tread structure, that is, the outer side surface of the rim 19 is a slope surface with a certain taper; in addition, compared with the conventional tapered tread of the bearing wheel with the flange, the width of the tapered tread of the non-flange bearing wheel 7 is widened in the embodiment, so that the non-flange bearing wheel 7 can allow a certain transverse swing during train running, the capability of coordinating the length difference of the inner rail and the outer rail is stronger when turning through a curve section, and the rail top corrugation is reduced.
As shown in fig. 1 to 7, the guiding system 2 in this embodiment is installed and fixed on the bearing wheel system 4, the guiding system 2 specifically includes guiding axle installation frames 8 respectively corresponding to the non-rim bearing wheels 7 on both sides, the guiding axle installation frames 8 are specifically installed on the bearing wheel system 4, guiding axle boxes 12 are respectively arranged on the guiding axle installation frames 8, and guiding axles 11 in a vertical arrangement are arranged in the guiding axle boxes 12; in addition, a guide shaft power device 9 is further disposed on the guide shaft mounting bracket 8 for providing a rotation power of the guide shaft 11, and is connected to an upper portion of the guide shaft 11 through a guide shaft power transmission device 10 to drive the guide shaft 11 to rotate at a controlled rotation speed. It should be noted that a horizontal sliding support 23 capable of generating horizontal relative sliding is arranged between the guide axle box 12 and the guide axle mounting bracket 8, the horizontal sliding support 23 is composed of a slide rail 23a fixed on the guide axle box 12 and a slide block 23b fixed on the guide axle mounting bracket 8, and the two are matched with each other and can generate horizontal relative movement; in addition, a vertical sliding support 3 capable of generating vertical relative sliding is arranged between the guide system 2 and the train bogie 1, and the vertical sliding support 3 consists of a slide rail 3a fixed on the guide system 2 and a slide block 3b fixed on the train bogie 1, which are matched with each other and can generate vertical relative movement.
As shown in fig. 3 and 5, the guide shaft 11 in this embodiment specifically adopts a three-section structure, which includes an upper large-diameter section 13, a middle transition section 14, and a lower small-diameter section 15 connected in sequence, the upper large-diameter section 13 of the guide shaft 11 is designed according to a transverse force, the lower small-diameter section 15 is determined according to a gap at a switch point, and the middle transition section 14 serves as a reasonable transition section between the upper large-diameter section 13 and the lower small-diameter section 15, so as to prevent stress concentration; among them, the upper large-diameter portion 13 is formed in a hollow structure so as to reduce moment of inertia, and the hollow portion is rounded so as to prevent stress concentration. Specifically, the diameter of the upper large-diameter section 13 is 100-200mm, and the inner diameter of the hollow structure is 20-25mm; the diameter of the lower small-diameter section 15 is 25-30mm, the height is 60-70mm, the center distance of the lower small-diameter sections 15 of the guide shafts 11 on two sides is 1380-1396mm, the standard distance of the inner side of the steel rail is 1435mm, and a certain clearance is considered; the height of the middle transition section 14 is 400-600mm.
As shown in fig. 4, the guide shaft mounting brackets 8 in this embodiment are respectively provided with a group on both sides of the axle 6, and each group of guide shaft mounting brackets 8 is in an "pi" shape corresponding to the mounting position of the rimless bearing wheel 7, and specifically, is formed by connecting and combining an outer guide shaft mounting bracket 16 and an inner guide shaft mounting bracket 17; wherein, the outer guide shaft mounting frame 16 is positioned and the end part thereof is connected and fixed on the axle box 5, while the inner guide shaft mounting frame 17 is positioned at the inner side of the non-rim bearing wheel 7 and the end part thereof is connected on the axle 6 through the end part axle box 18; the connecting portion between the outer guide shaft mounting bracket 16 and the inner guide shaft mounting bracket 17 is connected to the slider 23b, and the guide shaft case 12 is disposed in front of or behind the non-rim bearing wheel 7.
As shown in fig. 1 to 5, the working method of the guiding system on the train bogie in the embodiment includes the following steps: in the running process of the train, the power is provided by the guide shaft power device 9 and the guide shaft 11 is driven to rotate and guide by the guide shaft power transmission device 10, so that the surface rotating linear speed of the lower small-diameter section 15 of the guide shaft 11 at the position with the same height as the side part of the steel rail is basically the same as the running speed of the train; in the working process of the guide system 2, through the arrangement of the horizontal sliding support 23, the guide shaft 11 and the bearing wheel system 4 keep the same lifting and falling in the vertical direction and can move relatively in the horizontal direction, so that the guide shaft 11 is prevented from leaving the side part of the steel rail to cause guide failure, and meanwhile, the transverse displacement of the wheel pair can be controlled to realize the length difference of the inner rail and the outer rail of a coordinated curve section; through the arrangement of the vertical sliding support 3, the guide shaft 11 and the train bogie 1 are kept relatively fixed in the transverse direction, so that the guide shaft 11 can effectively keep the transverse position of the train bogie 1, and further effectively keep the transverse position of a carriage.
Claims (8)
1. A guide system on a train bogie is provided with a bearing wheel system and a guide system, and is characterized in that the guide system comprises a guide shaft mounting frame arranged on the bearing wheel system and a guide shaft box arranged on the guide shaft mounting frame, a guide shaft is vertically arranged in the guide shaft box, and the lower part of the guide shaft corresponds to the inner side of a steel rail; a horizontal sliding support is connected between the guide shaft box and the guide shaft mounting frame on the bearing wheel system, and a vertical sliding support is connected between the guide shaft box and the train bogie; the guide shaft power device is arranged on the guide shaft mounting frame and is connected with and drives the guide shaft through a guide shaft power transmission device.
2. The steering system of claim 1, wherein said steering shaft comprises an upper large diameter section, a lower small diameter section, and a middle transition section connecting said upper large diameter section and said lower small diameter section; the diameter of the upper large-diameter section is 100-200mm; the diameter of the lower small-diameter section is 25-30mm, the height of the lower small-diameter section is 60-70mm, and the lower end face of the lower small-diameter section is 25-30mm lower than the top face of the steel rail; the height of the middle transition section is 400-600mm; the center distance between the small-diameter sections of the lower parts of the guide shafts on the two sides is 1380-1396mm.
3. The guidance system for a train bogie as claimed in claim 2, wherein said upper large diameter section is a hollow structure having an inner diameter of 20-25mm.
4. The steering system of claim 1, wherein said axle bearing wheel system comprises an axle, a rimless wheel bearing disposed on each side of said axle, and a housing supporting the axle for rotation, said housing being mounted below said train bogie via a series of springs.
5. The guiding system on a train bogie according to claim 4, wherein the guiding axle mounting brackets are respectively mounted at the non-rim bearing wheels at two sides, are n-shaped and are formed by connecting and combining an inner guiding axle mounting bracket and an outer guiding axle mounting bracket; the end of the inner guide shaft mounting bracket is connected to the axle through an end axle box, and the end of the outer guide shaft mounting bracket is fixedly connected to the axle box.
6. A method of operation involving a guidance system on a train bogie as claimed in any one of claims 1 to 5, characterised in that the method of operation comprises the steps of: in the running process of the train, a guide shaft in the guide system rotates and guides, and the relative speed between the lower small-diameter section of the guide shaft and the theoretical contact surface of the side surface of the steel rail is controlled to be the same as the advancing speed of the train.
7. The method as claimed in claim 6, wherein the rotation speed of the steering shaft is controlled by the steering shaft power device via the steering shaft power transmission device.
8. The method of claim 6, wherein the guide shaft and the bearing wheel system slide in the transverse direction under the action of the horizontal sliding support and keep the same lifting and falling in the vertical direction, and the guide shaft and the train bogie keep relatively fixed in the transverse direction and relatively displace in the vertical direction under the action of the vertical sliding support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710847566.1A CN107554549B (en) | 2017-09-19 | 2017-09-19 | Guide system on train bogie and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710847566.1A CN107554549B (en) | 2017-09-19 | 2017-09-19 | Guide system on train bogie and working method thereof |
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| Publication Number | Publication Date |
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| CN107554549A CN107554549A (en) | 2018-01-09 |
| CN107554549B true CN107554549B (en) | 2023-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710847566.1A Active CN107554549B (en) | 2017-09-19 | 2017-09-19 | Guide system on train bogie and working method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109178022B (en) * | 2018-09-29 | 2024-02-06 | 同济大学 | High-speed train system with new wheel rail driven in distributed mode |
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| JP2007022508A (en) * | 2005-07-13 | 2007-02-01 | Shozaburo Sato | Train levitation and derailment preventive device |
| CN201102553Y (en) * | 2007-09-26 | 2008-08-20 | 中国北车集团北京二七机车厂有限责任公司 | Device for transferring non-standard track space engine on the standard track space circuitry |
| CN102530007A (en) * | 2012-02-29 | 2012-07-04 | 张二群 | Thrust wheel for heavy-duty railway wagons and bogie thereof |
| CN103038119A (en) * | 2010-06-03 | 2013-04-10 | 韩国界面工学研究所 | Self-steering device for railway vehicle |
| CN204714384U (en) * | 2015-05-23 | 2015-10-21 | 河南省矿山起重机有限公司 | A kind of preventing gnawing rail trackless semi-portal crane |
| CN105383511A (en) * | 2015-10-16 | 2016-03-09 | 中南大学 | Anti-derailing device for rail vehicle bogie and rail vehicle bogie |
-
2017
- 2017-09-19 CN CN201710847566.1A patent/CN107554549B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007022508A (en) * | 2005-07-13 | 2007-02-01 | Shozaburo Sato | Train levitation and derailment preventive device |
| CN201102553Y (en) * | 2007-09-26 | 2008-08-20 | 中国北车集团北京二七机车厂有限责任公司 | Device for transferring non-standard track space engine on the standard track space circuitry |
| CN103038119A (en) * | 2010-06-03 | 2013-04-10 | 韩国界面工学研究所 | Self-steering device for railway vehicle |
| CN102530007A (en) * | 2012-02-29 | 2012-07-04 | 张二群 | Thrust wheel for heavy-duty railway wagons and bogie thereof |
| CN204714384U (en) * | 2015-05-23 | 2015-10-21 | 河南省矿山起重机有限公司 | A kind of preventing gnawing rail trackless semi-portal crane |
| CN105383511A (en) * | 2015-10-16 | 2016-03-09 | 中南大学 | Anti-derailing device for rail vehicle bogie and rail vehicle bogie |
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