CN106184273B - Railway wagon self-guiding bogie and self-guiding method - Google Patents
Railway wagon self-guiding bogie and self-guiding method Download PDFInfo
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- CN106184273B CN106184273B CN201610530948.7A CN201610530948A CN106184273B CN 106184273 B CN106184273 B CN 106184273B CN 201610530948 A CN201610530948 A CN 201610530948A CN 106184273 B CN106184273 B CN 106184273B
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- bogie
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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
- B61F5/38—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
Abstract
A self-steering bogie of a railway wagon and a self-steering method thereof comprise a wheel set, a rolling bearing device, a bearing saddle, an axle box rubber spring, a side frame, a swing bolster, a spring damping device, a foundation brake device and a self-steering device; the method is characterized in that: two pairs of frameworks of the self-guiding device of the bogie are arranged at the outer end of the bogie, and nodes connecting the two pairs of frameworks and the cross rods are positioned at two sides of the bogie. The invention adopts the hinged connection of the two auxiliary frameworks and the cross connecting rod at the outer side of the side frame, and can realize the self-guiding of the bogie under the condition of not changing the overall arrangement of the traditional bogie, thereby simplifying the structure of the auxiliary frameworks, facilitating the installation and the maintenance, shortening the axle diameter center distance of the bogie, facilitating the installation of a bogie foundation braking device, in particular a unit type braking device, and achieving the purposes of obviously reducing the manufacturing and maintenance cost and improving the manufacturing and maintenance manufacturability of the bogie.
Description
Technical Field
The invention relates to a running method and a running device of a railway wagon vehicle, in particular to a self-guiding method and a bogie of a railway wagon bogie, and particularly relates to a self-guiding method and a bogie of a three-piece self-guiding bogie. Mainly used for steering traction in the running process of the railway wagon, and belongs to the technical field of railway wagon manufacturing.
Background art:
with the increase of the running speed of the truck, in order to maintain the rapid running stability of the conventional truck bogie, a larger horizontal connecting rigidity is generally adopted between the wheel pair and the side frame, but the improvement of the curve passing performance of the conventional truck bogie is limited, and the conventional truck cannot meet the requirements of both the curve passing performance and the transverse stability. In order to effectively solve the contradiction, the self-guiding bogie can not only ensure the curve passing performance requirement of the bogie, but also improve the transverse stability. The self-steering bogie is characterized in that when a railway wagon passes through a curve, under the action of guiding force generated by a rail on wheels, wheel sets of the bogie automatically tend to the radial position of the curve (the attack angle is 0), and self-steering is realized.
At present, the self-steering bogie widely applied to the railway freight car is formed by improving and designing a traditional three-piece freight car bogie, and mainly comprises a wheel set, a bearing, a side frame, a swing bolster, a side bearing, a foundation brake device and a wheel set self-steering device. After the wheel set self-guiding device is added to the bogie, the wheel set tends to the position in the radius direction of a curve when passing through the curve, so that the attack angle of the wheel relative to a steel rail is reduced, the abrasion of a wheel rim is reduced, and the purposes of prolonging the service life of the wheel and reducing the maintenance cost are achieved.
However, the main disadvantages of the conventional wheel-set self-guiding device are: the secondary frames are arranged between the wheels and the side frames and between the wheels and the bolster, and compared with the standard bogie, have the following disadvantages:
1) the auxiliary framework is positioned between the rubber spring bearing platform of the side frame and the sliding groove of the brake beam in a vertical plane, and the installation and the disassembly are extremely inconvenient.
2) The fixed wheelbase and the wheelbase center distance of the bogie are increased, so that the self weight of the bogie is increased, and the manufacturing and operating cost is increased.
3) The auxiliary frame is positioned on the outer side of the brake head, so that the brake shoe is difficult to replace, and the maintenance cost is increased.
4) The auxiliary frame is positioned on the side of the wheel pair close to the center of the bogie, so that the basic brake device, particularly the bogie installation brake device, is difficult to arrange and the application of the basic brake device is influenced.
Patent documents in which the same technology as that of the present invention is not found through patent search are reported, and the following patents which have a certain relationship with the present invention are mainly included:
1. patent No. CN201180060515 entitled "self-steering railway bogie", relates to a self-steering railway bogie, in particular but not exclusively for locomotives. In accordance with the present invention, there is provided a self-steering railway truck comprising front and rear wheelsets having two ends and a frame for limiting movement of the ends of the wheelsets. The bogie is provided with a plurality of fluid cylinders connected between the ends of the wheel sets and the frame and fluid flow means between the cylinders to permit the wheel sets to deflect oppositely relative to each other and to restrict other relative movement of the wheel sets.
2. Patent No. CN201080067182 entitled "self-steering device for railway vehicle", which relates to a self-steering device for railway vehicle, comprising: an axle provided on a bogie that supports a railway vehicle body; a wheel including a tread surface that runs on an upper surface of a rail and supports a vertical load of the railway vehicle, and a rim that protrudes from the tread surface so as to prevent derailment of the railway vehicle, and that forms an interference portion by contacting with a side surface of the rail when the railway vehicle runs straight, the wheel being connected to the axle; and a guide roller which is in rolling contact with an upper surface edge of the rail or a side surface of the rail in front of or behind the wheel when the railway vehicle enters a curved rail, and supports more lateral load than the interference portion. The guide roller is provided directly on the railway vehicle, or may be provided on at least one of a vehicle body, a bogie, and an axle.
3. The patent number is CN200910258706, the name is "a radial bogie torsion bar type self-guiding mechanism", this patent discloses a radial bogie torsion bar type self-guiding mechanism for railway vehicles, including the guide bar arranged on both sides of the framework, one end of each guide bar is connected with an axle box; the mechanism is characterized by also comprising a central torsion bar arranged in the center of the framework and rotating arms which are arranged on two sides of the framework and are respectively connected with two ends of the central torsion bar, wherein two ends of each rotating arm are symmetrically hinged with the guide rod.
Although the above patents relate to the self-guiding device of the bogie of the railway wagon, some structural improvements are proposed, but the prior self-guiding principle is not fundamentally changed, and the above-mentioned disadvantages still exist, so that further improvements are still needed.
Disclosure of Invention
The invention aims to provide a novel self-guiding method and a novel self-guiding device for a railway wagon bogie, aiming at the defects of the conventional self-guiding method and device for the railway wagon bogie.
In order to achieve the aim, the invention provides a railway wagon self-steering bogie which comprises a wheel set, a rolling bearing device, a bearing saddle, an axle box rubber spring, a side frame, a swing bolster, a spring damping device, a foundation braking device and a self-steering device, wherein the wheel set is arranged on the axle box rubber spring; the method is characterized in that: two pairs of frameworks of the self-guiding device of the bogie are arranged at the outer end of the bogie, and nodes connecting the two pairs of frameworks and the cross rods are positioned at two sides of the bogie.
Furthermore, the side frames are connected through the swing bolster, and the two auxiliary frameworks are connected through the connecting rods, so that the left wheel and the right wheel of the vehicle are integrated to form the self-guiding device.
Furthermore, the two auxiliary frameworks are connected through the connecting rod, and the two auxiliary frameworks are connected by bypassing the two ends of the outer side of the bogie; and the connection points of the two pairs of frames with the connecting rods are positioned outside the side frames, so that when the bogie passes through a curve, the guide force applied to the wheels by the steel rails tends to the radial position of the curve; the guide device positioned on the outer side of the side frame is used for forcing the two wheel pairs to rotate relatively, so that the self-guide of the railway wagon bogie is realized.
Furthermore, the connecting rod and the two auxiliary frameworks are connected through holes reserved in the side frames and the belly of the swing bolster.
Furthermore, the two connecting rods are crossed through holes reserved in the side frames and the belly of the swing bolster and connected with the two auxiliary frameworks; the two connecting rods are connected together at the crossing part through a connecting pin to form a hinge joint.
A railway freight car bogie self-steering method, arrange two auxiliary frameworks in the both ends of the bogie, and two auxiliary frameworks are walked around from both ends outside the bogie, two auxiliary frameworks are connected with tie rod and located outside the side bearer, form the guiding device of the bogie wheel pair by auxiliary framework and tie rod; when the bogie passes through a curve, the guiding force exerted by the steel rail on the wheel tends to the radial position of the curve; the guide device positioned on the outer side of the side frame is used for forcing the two wheel pairs to rotate relatively, so that the self-guide of the railway wagon bogie is realized.
Furthermore, the two auxiliary frameworks are connected with the connecting rod and positioned outside the side frame, and the connecting rod penetrates through holes reserved in the side frame and the belly of the swing bolster to be connected with the two auxiliary frameworks.
Furthermore, the two connecting rods are crossed through holes reserved in the side frames and the belly of the swing bolster and connected with the two auxiliary frameworks; the two connecting rods are connected together at the crossing part through a connecting pin to form a hinge joint.
The invention has the advantages that:
the invention adopts the hinged connection of the two auxiliary frameworks and the connecting rod outside the side frame, and can realize the self-guiding of the bogie under the condition of not changing the overall arrangement of the traditional bogie, thereby simplifying the structure of the auxiliary frameworks, facilitating the installation and the maintenance, shortening the axle diameter center distance of the bogie, facilitating the installation of a bogie foundation braking device, in particular a unit type braking device, and achieving the purposes of obviously reducing the manufacturing and maintenance cost and improving the manufacturing and maintenance manufacturability of the bogie. The arrangement of the guide device has no adverse effect on the overall arrangement of the traditional bogie, the fixed wheelbase and the wheeldiameter center distance of the bogie do not need to be increased, the arrangement of the brake device on the inner side of the bogie is not affected, and the brake shoe replacement is not adversely affected. The method mainly has the following characteristics:
1. compared with the existing self-steering bogie, the self-steering bogie can greatly reduce the bearing center distance of the wheel pair. The traditional auxiliary frame is arranged between the wheels and the side frames, the axial distance of the wheel pair occupied by the traditional auxiliary frame is about 75mm on one side, and the bending moment of the axle diameter root of the axle is increased by more than 20%. Therefore, compared with the conventional three-piece bogie with the same bearing capacity, the conventional self-steering bogie needs to adopt the axle with larger bearing diameter and the bearing with larger inner diameter, thereby increasing the manufacturing cost of the bogie. The self-steering bogie of the railway wagon according to the invention/utility model can avoid the problem, thereby reducing the manufacturing cost.
2. Compared with the existing self-steering bogie, the invention can greatly reduce the fixed wheelbase of the bogie. The conventional sub-frame is disposed between the wheel and the bolster, and occupies a distance (in a horizontal plane, in a direction along a center line of the track) of about 100mm on one side, so that the length of the side frame is increased under the same load, resulting in an increase in the mass of the side frame, thereby increasing the manufacturing cost of the bogie. The self-steering bogie of the railway wagon according to the invention/utility model can avoid the problem, thereby reducing the manufacturing cost.
3. Compared with the existing self-guiding bogie, the self-guiding bogie has the advantages that the distance between the position of the brake shoe and maintenance personnel outside the bogie is shorter, so that the brake shoe is easy to replace after the abrasion of the brake shoe reaches the limit, and the maintenance cost is reduced.
Drawings
FIG. 1 is a schematic diagram of the structural principle of the present invention;
fig. 2 is a schematic top view of fig. 1.
Detailed Description
The invention is further illustrated with reference to the following figures and specific examples.
Example one
As can be seen from figures 1 and 2, the present invention relates to a railway wagon bogie self-steering device comprising: the wheel set 1, the rolling bearing device 2, the bearing saddle 3, a series of rubber springs 4, a side frame 5, a central spring damping device 6, a swing bolster 7, a connecting rod 8, a connecting pin 9, a sub-frame 10, a side bearing 11 and a brake device 12, wherein the side frame 5 is pressed on the wheel set 1 through the sub-frame 10.
As shown in fig. 2, two sub frames 10 are disposed at both ends of the bogie, the link pins 9 are located outside the side frames, and the link rods 8 pass through holes reserved in the ventral portions of the side frames 5 and the bolster 7. The two auxiliary frameworks 10 and the two connecting rods 8 are in cross connection through four connecting pins 9 to form a guide device of the bogie wheel pair. When the bogie passes through a curve, the guide force applied to the wheels by the steel rail forces the two wheel pairs to rotate relatively to each other by the action of the guide device, and the two wheel pairs tend to move to the radial position of the curve. The arrangement of the guide device has no adverse effect on the overall arrangement of the traditional bogie, the fixed wheelbase and the wheeldiameter center distance of the bogie do not need to be increased, the arrangement of the brake device on the inner side of the bogie is not affected, and the brake shoe replacement is not adversely affected.
Example two
The structure of the second embodiment is the same as the basic principle of the first embodiment, except that the arrangement mode of the connecting rods is different, as shown in figure 2. The side frames are connected through the swing bolster, and the two auxiliary frameworks are connected through the connecting rod, so that the left wheel and the right wheel of the vehicle are integrated to form a self-guiding device; the principle of rounding arc wine barrel is used to make the diameter of wheel contacted with steel rail continuously change so as to implement automatic rotation rolling guide.
The two auxiliary frameworks are connected through the connecting rod, and the two auxiliary frameworks are connected by bypassing the two ends of the bogie; and the connection points of the two trusses to the tie rods are located outside the side frames (i.e., away from the longitudinal centerline of the track) so that when the truck passes through a curve, the guiding force exerted by the rails on the wheels tends toward the radial position of the curve; the guide device positioned on the outer side of the side frame is used for forcing the two wheel pairs to rotate relatively, so that the self-guide of the railway wagon bogie is realized.
The two connecting rods cross-connect the two auxiliary frameworks through the holes on the side frames and the holes on the swing bolster.
The connecting rod is connected with the two auxiliary frameworks through connecting pins, and the two auxiliary frameworks are connected with the two connecting rods in a crossing manner through the four connecting pins.
The two connecting rods cross and penetrate through holes reserved in the side frames and the belly of the swing bolster and are connected with the two auxiliary frameworks; the two connecting rods are connected together at the crossing part through a connecting pin to form a hinge joint.
The above listed embodiments are only for clear and complete description of the technical solution of the present invention with reference to the accompanying drawings; it is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to the embodiment, the invention also relates to a guide device for the bogie wheel set, which is formed by the auxiliary frameworks and the connecting rods, wherein the two auxiliary frameworks are arranged at two ends of the bogie and pass by two ends of the outer side of the bogie; when the bogie passes through a curve, the guiding force exerted by the steel rail on the wheel tends to the radial position of the curve; the guide device positioned on the outer side of the side frame is used for forcing the two wheel pairs to rotate relatively, so that the self-guide of the railway wagon bogie is realized.
Furthermore, the two auxiliary frameworks are connected with the connecting rod and positioned outside the side frame, and the connecting rod penetrates through holes reserved in the side frame and the belly of the swing bolster to be connected with the two auxiliary frameworks.
Furthermore, the two connecting rods are crossed through holes reserved in the side frames and the belly of the swing bolster and connected with the two auxiliary frameworks; the two connecting rods are connected together at the crossing part through a connecting pin to form a hinge joint.
The invention has the advantages that:
the invention adopts the hinged connection of the two auxiliary frameworks and the connecting rod outside the side frame, and can realize the self-guiding of the bogie under the condition of not changing the overall arrangement of the traditional bogie, thereby simplifying the structure of the auxiliary frameworks, facilitating the installation and the maintenance, shortening the axle diameter center distance of the bogie, facilitating the installation of a bogie foundation braking device, in particular a unit type braking device, and achieving the purposes of obviously reducing the manufacturing and maintenance cost and improving the manufacturing and maintenance manufacturability of the bogie. The arrangement of the guide device has no adverse effect on the overall arrangement of the traditional bogie, the fixed wheelbase and the wheeldiameter center distance of the bogie do not need to be increased, the arrangement of the brake device on the inner side of the bogie is not affected, and the brake shoe replacement is not adversely affected. The method mainly has the following characteristics:
1. compared with the existing self-steering bogie, the self-steering bogie can greatly reduce the bearing center distance of the wheel pair. The traditional auxiliary frame is arranged between the wheels and the side frames, the axial distance of the wheel pair occupied by the traditional auxiliary frame is about 75mm on one side, and the bending moment of the axle diameter root of the axle is increased by more than 20%. Therefore, compared with the conventional three-piece bogie with the same bearing capacity, the conventional self-steering bogie needs to adopt the axle with larger bearing diameter and the bearing with larger inner diameter, thereby increasing the manufacturing cost of the bogie. The self-steering bogie of the railway wagon according to the invention/utility model can avoid the problem, thereby reducing the manufacturing cost.
2. Compared with the existing self-steering bogie, the invention can greatly reduce the fixed wheelbase of the bogie. The conventional sub-frame is disposed between the wheel and the bolster, and occupies a distance (in a horizontal plane, in a direction along a center line of the track) of about 100mm on one side, so that the length of the side frame is increased under the same load, resulting in an increase in the mass of the side frame, thereby increasing the manufacturing cost of the bogie. The self-steering bogie of the railway wagon according to the invention/utility model can avoid the problem, thereby reducing the manufacturing cost.
3. Compared with the existing self-guiding bogie, the self-guiding bogie has the advantages that the distance between the position of the brake shoe and maintenance personnel outside the bogie is shorter, so that the brake shoe is easy to replace after the abrasion of the brake shoe reaches the limit, and the maintenance cost is reduced.
Claims (2)
1. A self-steering bogie for a railway wagon comprises a wheel set, a rolling bearing device, a bearing saddle, an axle box rubber spring, a side frame, a swing bolster, a spring damping device, a foundation braking device and a self-steering device; the method is characterized in that: the side frames are connected through the swing bolster, and the two auxiliary frameworks are connected through the connecting rod, so that the left wheel and the right wheel of the vehicle are integrated to form a self-guiding device; the two auxiliary frameworks are connected through the connecting rod, and the two auxiliary frameworks are connected by bypassing the two ends of the bogie; and the connection points of the two pairs of frames with the connecting rods are located outside the side frames, i.e. away from the longitudinal centerline of the track, so that when the bogie passes through a curve, the guiding force exerted on the wheels by the steel rails tends to the radial position of the curve; the two wheel pairs are forced to rotate relatively under the action of a guide device positioned on the outer side of the side frame, so that the self-guide of the railway wagon bogie is realized; the two connecting rods cross and penetrate through holes reserved in the side frames and the belly of the swing bolster and are connected with the two auxiliary frameworks; the two connecting rods are connected together at the crossing part through a connecting pin to form a hinge joint.
2. A self-steering method using the self-steering bogie of railway wagon as claimed in claim 1, arranging two sub-frames at both ends of the bogie, and the two sub-frames are passed around from both ends of the outer side of the bogie, the two sub-frames are connected with the connecting rods at the outer side of the side frames, and the sub-frames and the connecting rods form a steering device of the bogie wheel pair; when the bogie passes through a curve, the guiding force exerted by the steel rail on the wheel tends to the radial position of the curve; the two wheel pairs are forced to rotate relatively under the action of a guide device positioned on the outer side of the side frame, so that the self-guide of the railway wagon bogie is realized; the two connecting rods cross and penetrate through holes reserved in the side frames and the belly of the swing bolster and are connected with the two auxiliary frameworks; the two connecting rods are connected together at the crossing part through a connecting pin to form a hinge joint.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610530948.7A CN106184273B (en) | 2016-07-07 | 2016-07-07 | Railway wagon self-guiding bogie and self-guiding method |
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| CN201610530948.7A CN106184273B (en) | 2016-07-07 | 2016-07-07 | Railway wagon self-guiding bogie and self-guiding method |
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| CN106184273B true CN106184273B (en) | 2021-01-26 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107804327A (en) * | 2017-12-04 | 2018-03-16 | 江苏瑞雪海洋科技股份有限公司 | Freezer logistics rail locomotive |
| CN108995672B (en) * | 2018-07-31 | 2023-07-07 | 株洲浦世达科技有限公司 | Elastic connection method and connection device for U-shaped auxiliary framework and diagonal cross connecting rod |
| CN113371021A (en) * | 2021-06-11 | 2021-09-10 | 广州铁路职业技术学院（广州铁路机械学校） | Energy recovery device for auxiliary framework of railway vehicle |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4067261A (en) * | 1972-11-10 | 1978-01-10 | South African Inventions Development Corporation | Damping railway vehicle suspension |
| SE393071B (en) * | 1974-04-05 | 1977-05-02 | South African Inventions | RAILWAY TROLLEY |
| DE19507021C2 (en) * | 1995-03-01 | 1999-12-16 | Wax Ebeling Juergen | Chassis for railway vehicles |
| CN2905578Y (en) * | 2006-04-30 | 2007-05-30 | 中国南车集团眉山车辆厂 | Auxiliary truss bogie |
| US8336464B1 (en) * | 2011-08-30 | 2012-12-25 | Qiqihar Railway Rolling Stock Co., Ltd. | Freight car bogie and freight car |
| CN102602415B (en) * | 2012-03-23 | 2015-10-21 | 齐齐哈尔轨道交通装备有限责任公司 | Bogie truck connecting rod support, bogie truck and lorry |
| CN102730018B (en) * | 2012-06-04 | 2014-11-26 | 南车眉山车辆有限公司 | Radial steering rack for secondary framework |
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