WO2021238717A1 - New railway wagon three-axle bogie with heavy axle load and full side bearing loading - Google Patents
New railway wagon three-axle bogie with heavy axle load and full side bearing loading Download PDFInfo
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- WO2021238717A1 WO2021238717A1 PCT/CN2021/094287 CN2021094287W WO2021238717A1 WO 2021238717 A1 WO2021238717 A1 WO 2021238717A1 CN 2021094287 W CN2021094287 W CN 2021094287W WO 2021238717 A1 WO2021238717 A1 WO 2021238717A1
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- axle
- side bearing
- bogie
- elastic hinge
- railway freight
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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
- B61F5/50—Other details
- B61F5/52—Bogie frames
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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
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/14—Side bearings
Definitions
- a novel three-axle bogie for large-axle railway freight cars with full side bearing load relates to the technical field of railway transportation equipment, and in particular to a three-axle bogie for large-axle railway freight cars.
- Traditional three-axle bogies for railway freight cars mainly adopt the structure form of center-disc centralized load bearing (side bearing is not load-bearing) or center-disc part load-bearing (center-disc and side bearing joint load-bearing).
- the center plate is located in the center of the bogie, directly above the middle axle, and below the car body underframe. From the point of view of the load transfer method, the car body load is all or mainly transferred to the bogie through the center plate.
- the problem to be solved by the present invention is to provide a three-axle bogie structure of a large axle load railway freight car that can evenly distribute the load of the car body and can effectively improve the overall force of the frame.
- the technical scheme is as follows:
- the frame includes a frame steel structure, which is assembled by two symmetrically arranged side beams and a cross beam.
- the key technology lies in the installation of elastic hinges in the center of the beams, and 4 to 6 side bearings are distributed in a circle with the elastic hinges as the center on the two side beams.
- the frame has a double H-shaped centerless disc structure as a whole.
- a wear sleeve is arranged between the elastic hinge and the elastic hinge mounting seat.
- the upper and lower cover plates of the side beams are welded in sections or an integral structure, and a lower side bearing mounting seat is provided on the upper cover plate.
- the lower side bearing includes an upper lining board, a lower lining board and an elastic body.
- the present invention has the following beneficial effects:
- the present invention installs an elastic hinge in the center of the cross beam, and distributes the side bearings in a circle with the elastic hinge as the center on the two side beams, and makes full use of the overall structural strength of the frame.
- the load-bearing is transformed into four lower side bearings distributed symmetrically on the center of the side beams to equally share the vertical load, and there is no center plate in the center of the bogie, but the elastic hinge located in the center of the cross beam of the bogie bears the horizontal load, and only transmits the horizontal load. It constitutes a bogie with full side bearing bearing (that is, the side bearing bears all vertical loads) which is mainly carried by the side beams, and the cross beams only transmit horizontal forces.
- the requirements of the bogie on the structural strength of the beam directly above the intermediate axle are greatly reduced, which reduces the design difficulty; and with the increase of axle load, the influence on the structural strength of the frame is relatively small (for example, vertical load An increase of 4kN, for the present invention, an increase of 1kN for each side bearing).
- the vertical cross-section height of the beam can be made smaller, so as to meet the requirements of some vehicles with lower floor height (that is, under the same conditions, the use of the bogie of the present invention can make the floor height of the vehicle lower). Effectively solve the contradiction between the increase of wheel diameter under the condition of large axle load, the increase of the vertical section height of the frame and the height requirement of the vehicle floor.
- the lower side bearing is generally distributed in a circle to ensure that the car body will not be eccentrically loaded or the upper and lower side bearings will be disengaged when the car body rotates relative to the bogie; the upper and lower side bearings are rolling friction, which can provide suitable rotation resistance Moment to ensure the straight-line running stability and curve passing ability of the vehicle.
- the elastic hinge After the completion of the vehicle, the elastic hinge has appropriate horizontal rigidity and vertical displacement, which can ensure that the elastic hinge will not bear the vertical load exceeding the allowable limit under various vehicle conditions.
- the bogie structure is widely used in the field of railway freight cars, especially suitable for various types of railway freight cars with large axle load (axle load up to 30t) and heavy load.
- Figure 1 is a schematic diagram of the structure of the present invention
- Figure 2 is an exploded view of the framework of the present invention
- Figure 3 is an exploded view of the frame steel structure of the present invention.
- Figure 4 is a schematic diagram of the side bearing of the present invention.
- the present invention includes a wheel set 11, a rolling bearing device 12, a frame 13, an axle box suspension device 14, a foundation braking device 15 and a lower side bearing 16.
- the frame 13 includes a frame steel structure 21 and a frame steel structure 21 It consists of two side beams 31 symmetrically arranged along the longitudinal center axis of the bogie and a cross beam 32 is assembled.
- the key technology is that the elastic hinge 23 is installed in the center of the cross beam 32 through the elastic hinge mounting seat 34, and 4 to 6 lower side bearings 16 are distributed on the two side beams 31 through the lower side bearing mounting seat 33 centered on the elastic hinge 23.
- the frame 13 has a double H-shaped centerless disc structure as a whole, which has sufficient strength and rigidity.
- a wear sleeve 22 is provided between the elastic hinge 23 and the elastic hinge mounting seat 34.
- the elastic hinge 23 is fixed on the elastic hinge mounting seat 34 with a pressing cover 24 and a fastener 25.
- the upper and lower cover plates of the side beam 31 are welded in sections or an integral structure, and a lower side bearing mounting seat 33 is provided on the upper cover plate.
- the lower side bearing 16 includes an upper lining plate 41, a lower lining plate 42 and an elastic body 43, and has a relatively large vertical rigidity and sufficient bearing capacity.
Abstract
Disclosed is a new railway wagon three-axle bogie with a heavy axle load and full side bearing loading, the three-axle bogie comprising a wheel pair (11), a rolling bearing device (12), a framework (13), an axle box suspension device (14), a foundation braking device (15) and lower side bearings (16). The framework (13) comprises a framework steel structure (21), wherein the framework steel structure (21) is formed by assembling two side beams (31), which are symmetrically arranged, and one cross beam (32). The three-axle bogie is characterized in that an elastic hinge (23) is mounted at the center of the cross beam (32) by means of an elastic hinge mounting seat (34), and four to six lower side bearings (16) are circumferentially distributed on the two side beams (31) by taking the elastic hinge (23) as the center. Under the same load condition, the requirements of the bogie with regard to the structural strength of the cross beam are greatly reduced, and the design difficulty is reduced.
Description
一种全旁承承载的新型大轴重铁路货车三轴转向架，涉及铁路运输装备技术领域，具体涉及一种大轴重铁路货车三轴转向架。A novel three-axle bogie for large-axle railway freight cars with full side bearing load relates to the technical field of railway transportation equipment, and in particular to a three-axle bogie for large-axle railway freight cars.
随着铁路货车技术的发展和物流运输需求的不断变化，重载已成为当前铁路货车技术的主要发展方向之一。然而，由于受既有线路条件(如轨重、桥梁承载能力等)的限制，在短期内大幅提高转向架允许轴重是困难的；而且，从经济条件和技术水平考虑，也不可能在短期内对所有既有线路进行彻底改造。因此，要适应铁路货车重载运输的需要，尤其对于特种大型、重型货物的运输，通过增加转向架轴数来提高车辆承载能力是一条重要途径。其中，三轴转向架是最为常见的形式。With the development of railway freight car technology and the continuous changes in logistics and transportation requirements, heavy-duty has become one of the main development directions of current railway freight car technology. However, due to the limitations of existing line conditions (such as track weight, bridge load-bearing capacity, etc.), it is difficult to substantially increase the allowable axle load of the bogie in the short term; moreover, considering economic conditions and technical levels, it is impossible to do so in the short term. Complete renovation of all existing lines within. Therefore, in order to meet the needs of heavy-load transportation of railway trucks, especially for the transportation of special large and heavy goods, increasing the number of bogie axles to increase the carrying capacity of the vehicle is an important way. Among them, the three-axle bogie is the most common form.
传统铁路货车三轴转向架主要采用心盘集中承载(旁承不承载)或心盘部分承载(心盘和旁承共同承载)的结构形式。心盘位于转向架中央位置，中间车轴的正上方，车体底架以下。从载荷的传递方式来看，车体载荷全部或主要通过心盘传递给转向架。因此，较之相同轴重的二轴转向架，传统三轴转向架对心盘承载结构的强度要求更高；同时，随着轴重的不断增大，不仅心盘载荷会相应增大，车轴轴身直径和车轮直径一般也将随之增大，造成车轴整体距轨面高度的增加；受车辆车钩和地板面距轨面高度等因素的限制，心盘承载结构的设计空间非常有限，受载情况十分恶劣，设计难度极大，限制了三轴转向架在大轴重货车上的应用。Traditional three-axle bogies for railway freight cars mainly adopt the structure form of center-disc centralized load bearing (side bearing is not load-bearing) or center-disc part load-bearing (center-disc and side bearing joint load-bearing). The center plate is located in the center of the bogie, directly above the middle axle, and below the car body underframe. From the point of view of the load transfer method, the car body load is all or mainly transferred to the bogie through the center plate. Therefore, compared with two-axle bogies with the same axle load, traditional three-axle bogies have higher requirements for the strength of the core bearing structure; at the same time, as the axle load continues to increase, not only the load on the core disc will increase correspondingly, but the axle The shaft diameter and wheel diameter will generally increase accordingly, resulting in an increase in the overall height of the axle from the rail surface; limited by factors such as the height of the vehicle coupler and floor surface from the rail surface, the design space for the core plate bearing structure is very limited. The load situation is very bad and the design is extremely difficult, which limits the application of three-axle bogies to heavy-axle trucks.
发明内容Summary of the invention
本发明要解决的问题就是针对以上不足而提供一种将车体载荷平均分配、能有效改善构架整体受力情况的大轴重铁路货车三轴转向架结构。其技术方案如下：The problem to be solved by the present invention is to provide a three-axle bogie structure of a large axle load railway freight car that can evenly distribute the load of the car body and can effectively improve the overall force of the frame. The technical scheme is as follows:
它包括轮对、滚动轴承装置、构架、轴箱悬挂装置、基础制动装置和下旁承，构架包括构架钢结构，构架钢结构包括两根对称布置的侧梁和一根横梁组装而成。其关键技术在于横梁中央安装弹性铰，在两根侧梁上以弹性铰为中心呈圆周分布4～6个下旁承。It includes wheelset, rolling bearing device, frame, axle box suspension device, foundation brake device and lower side bearing. The frame includes a frame steel structure, which is assembled by two symmetrically arranged side beams and a cross beam. The key technology lies in the installation of elastic hinges in the center of the beams, and 4 to 6 side bearings are distributed in a circle with the elastic hinges as the center on the two side beams.
所述构架整体呈双H形的无心盘结构。The frame has a double H-shaped centerless disc structure as a whole.
所述弹性铰与弹性铰安装座之间设置磨耗套。A wear sleeve is arranged between the elastic hinge and the elastic hinge mounting seat.
在弹性铰安装座上用压盖和紧固件固定弹性铰。Use glands and fasteners to fix the elastic hinge on the elastic hinge mounting seat.
所述侧梁的上、下盖板为分段焊接或整体结构，上盖板上设置下旁承安装座。The upper and lower cover plates of the side beams are welded in sections or an integral structure, and a lower side bearing mounting seat is provided on the upper cover plate.
所述下旁承包括上衬板、下衬板和弹性体。The lower side bearing includes an upper lining board, a lower lining board and an elastic body.
与现有技术相比，本发明具有如下有益效果：Compared with the prior art, the present invention has the following beneficial effects:
1、本发明在横梁中央安装弹性铰，在两根侧梁上以弹性铰为中心呈圆周分布下旁承，充分利用构架整体的结构强度，由传统铁路货车三轴转向架的心盘单点承载转化为分布在位于侧梁上的中心对称分布的四个下旁承平均分摊垂向载荷，且转向架中心并无心盘，而是位于转向架横梁中央的弹性铰承受水平载荷，仅传递水平力，构成主要靠侧梁承载，横梁仅传递水平力的全旁承承载(即旁承承担全部的垂向载荷)转向架。在相同载荷工况下，转向架对位于中间车轴正上方的横梁结构强度要求大幅降低，降低了设计难度；且随轴重的增加，对构架结构强度的影响相对较小(比如，垂向载荷增加了4kN,对本发明而言，每个旁承处增加1kN)。而且可以将横梁垂向截面高度做得更小，从而适应部分地板面高度较低的车辆的要求(也即是相同条件下， 采用本发明的转向架可以使车辆地板高度更低)。有效解决了大轴重条件下车轮直径增大，构架垂向截面高度增加与车辆地板面高度要求之间的矛盾。1. The present invention installs an elastic hinge in the center of the cross beam, and distributes the side bearings in a circle with the elastic hinge as the center on the two side beams, and makes full use of the overall structural strength of the frame. The load-bearing is transformed into four lower side bearings distributed symmetrically on the center of the side beams to equally share the vertical load, and there is no center plate in the center of the bogie, but the elastic hinge located in the center of the cross beam of the bogie bears the horizontal load, and only transmits the horizontal load. It constitutes a bogie with full side bearing bearing (that is, the side bearing bears all vertical loads) which is mainly carried by the side beams, and the cross beams only transmit horizontal forces. Under the same load conditions, the requirements of the bogie on the structural strength of the beam directly above the intermediate axle are greatly reduced, which reduces the design difficulty; and with the increase of axle load, the influence on the structural strength of the frame is relatively small (for example, vertical load An increase of 4kN, for the present invention, an increase of 1kN for each side bearing). Moreover, the vertical cross-section height of the beam can be made smaller, so as to meet the requirements of some vehicles with lower floor height (that is, under the same conditions, the use of the bogie of the present invention can make the floor height of the vehicle lower). Effectively solve the contradiction between the increase of wheel diameter under the condition of large axle load, the increase of the vertical section height of the frame and the height requirement of the vehicle floor.
2、下旁承总体呈圆周分布，保证车体相对于转向架产生回转运动时不会偏载或上、下旁承脱开；上、下旁承间为滚动摩擦，可提供适宜的回转阻力矩，保证车辆的直线运行稳定性及曲线通过能力。2. The lower side bearing is generally distributed in a circle to ensure that the car body will not be eccentrically loaded or the upper and lower side bearings will be disengaged when the car body rotates relative to the bogie; the upper and lower side bearings are rolling friction, which can provide suitable rotation resistance Moment to ensure the straight-line running stability and curve passing ability of the vehicle.
3、车辆落成后的弹性铰具有适宜的水平刚度及垂向位移量，可以保证弹性铰在各种车辆工况下不会承受超过允许限度的垂向载荷。3. After the completion of the vehicle, the elastic hinge has appropriate horizontal rigidity and vertical displacement, which can ensure that the elastic hinge will not bear the vertical load exceeding the allowable limit under various vehicle conditions.
4、该转向架结构广泛适用于铁路货车领域，特别适合大轴重(轴重达到30t)、大载重的各型铁路货车。4. The bogie structure is widely used in the field of railway freight cars, especially suitable for various types of railway freight cars with large axle load (axle load up to 30t) and heavy load.
图1是本发明结构示意图；Figure 1 is a schematic diagram of the structure of the present invention;
图2是本发明的构架爆炸图；Figure 2 is an exploded view of the framework of the present invention;
图3是本发明的构架钢结构爆炸图；Figure 3 is an exploded view of the frame steel structure of the present invention;
图4是本发明的旁承示意图。Figure 4 is a schematic diagram of the side bearing of the present invention.
下面结合具体实施方式对本发明作进一步说明，具体实施方式是对本发明原理的进一步说明，不以任何方式限制本发明，与本发明相同或类似技术均没有超出本发明保护的范围。The present invention will be further explained below in conjunction with specific embodiments. The specific embodiments are further explanations of the principles of the present invention and do not limit the present invention in any way. The same or similar technologies as the present invention do not exceed the protection scope of the present invention.
参见图1～图4，本发明包括轮对11、滚动轴承装置12、构架13、轴箱悬挂装置14、基础制动装置15和下旁承16，构架13包括构架钢结构21，构架钢结构21包括两根沿转向架纵向中心轴对称布置的侧梁31和一根横梁32组装而成。其关键技术在于横梁32中央通过弹性铰安装座34安装弹性铰23，在两根侧梁31上通过下旁承安装座33以弹性铰23为中心呈圆周分布4～6个下旁承16。1 to 4, the present invention includes a wheel set 11, a rolling bearing device 12, a frame 13, an axle box suspension device 14, a foundation braking device 15 and a lower side bearing 16. The frame 13 includes a frame steel structure 21 and a frame steel structure 21 It consists of two side beams 31 symmetrically arranged along the longitudinal center axis of the bogie and a cross beam 32 is assembled. The key technology is that the elastic hinge 23 is installed in the center of the cross beam 32 through the elastic hinge mounting seat 34, and 4 to 6 lower side bearings 16 are distributed on the two side beams 31 through the lower side bearing mounting seat 33 centered on the elastic hinge 23.
所述构架13整体呈双H形的无心盘结构，具有足够的强度和刚度。The frame 13 has a double H-shaped centerless disc structure as a whole, which has sufficient strength and rigidity.
所述弹性铰23与弹性铰安装座34之间设置磨耗套22。A wear sleeve 22 is provided between the elastic hinge 23 and the elastic hinge mounting seat 34.
在弹性铰安装座34上用压盖24和紧固件25固定弹性铰23。The elastic hinge 23 is fixed on the elastic hinge mounting seat 34 with a pressing cover 24 and a fastener 25.
所述侧梁31的上、下盖板为分段焊接或整体结构，上盖板上设置下旁承安装座33。The upper and lower cover plates of the side beam 31 are welded in sections or an integral structure, and a lower side bearing mounting seat 33 is provided on the upper cover plate.
所述下旁承16包括上衬板41、下衬板42和弹性体43，具有较大的垂向刚度和足够的承载能力。The lower side bearing 16 includes an upper lining plate 41, a lower lining plate 42 and an elastic body 43, and has a relatively large vertical rigidity and sufficient bearing capacity.
显然，本发明的上述实施例仅仅是为清楚地说明本发明所作的举例，而并非是对本发明的实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无法对所有的实施方式予以穷举。凡是属于本发明的技术方案所引伸出的显而易见的变化或变动仍处于本发明的保护范围之列。Obviously, the above-mentioned embodiments of the present invention are merely examples to clearly illustrate the present invention, and are not intended to limit the implementation of the present invention. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not possible to give an exhaustive list of all implementation methods here. All obvious changes or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.
Claims (6)
- 一种全旁承承载的新型大轴重铁路货车三轴转向架，包括轮对(11)、滚动轴承装置(12)、构架(13)、轴箱悬挂装置(14)、基础制动装置(15)和下旁承(16)，构架(13)包括构架钢结构(21)，构架钢结构(21)包括两根对称布置的侧梁(31)和一根横梁(32)组装而成；其特征在于横梁(32)中央通过弹性铰安装座(34)安装弹性铰(23)，在两根侧梁(31)上以弹性铰(23)为中心呈圆周分布4～6个下旁承(16)。A new type of large axle load railway freight car three-axle bogie with full side bearing, including wheel set (11), rolling bearing device (12), frame (13), axle box suspension device (14), basic braking device (15) ) And the lower side bearing (16), the frame (13) includes a frame steel structure (21), and the frame steel structure (21) includes two symmetrically arranged side beams (31) and a cross beam (32) assembled; It is characterized in that the elastic hinge (23) is installed in the center of the cross beam (32) through the elastic hinge mounting seat (34), and 4 to 6 lower side bearings ( 16).
- 根据权利要求1所述全旁承承载的新型大轴重铁路货车三轴转向架，其特征在于构架(13)整体呈双H形的无心盘结构。The new type large axle load railway freight car three-axle bogie with full side bearing according to claim 1, characterized in that the frame (13) has a double H-shaped centerless disc structure as a whole.
- 根据权利要求1所述全旁承承载的新型大轴重铁路货车三轴转向架，其特征在于弹性铰(23)与弹性铰安装座(34)之间设置磨耗套(22)。The new three-axle bogie of a large axle load railway freight car with full side bearing according to claim 1, characterized in that a wear sleeve (22) is arranged between the elastic hinge (23) and the elastic hinge mounting seat (34).
- 根据权利要求1所述全旁承承载的新型大轴重铁路货车三轴转向架，其特征是在弹性铰安装座(34)上用压盖(24)和紧固件(25)固定弹性铰(23)。The new type large axle load railway freight car three-axle bogie with full side bearing according to claim 1, characterized in that the elastic hinge is fixed with a gland (24) and a fastener (25) on the elastic hinge mounting seat (34) (twenty three).
- 根据权利要求1所述全旁承承载的新型大轴重铁路货车三轴转向架，其特征在于侧梁(31)的上、下盖板为分段焊接或整体结构，上盖板上设置下旁承安装座(33)。The new three-axle bogie of a large axle load railway freight car with full side bearing according to claim 1, characterized in that the upper and lower cover plates of the side beams (31) are welded in sections or an integral structure, and the upper cover plate is provided with a lower cover plate. Side bearing mounting seat (33).
- 根据权利要求1所述全旁承承载的新型大轴重铁路货车三轴转向架，其特征在于下旁承(16)包括上衬板(41)、下衬板(42)和弹性体(43)。The new type large axle load railway freight car three-axle bogie with full side bearing according to claim 1, characterized in that the lower side bearing (16) includes an upper liner (41), a lower liner (42) and an elastic body (43) ).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010448431.X | 2020-05-25 | ||
| CN202010448431.XA CN111516723A (en) | 2020-05-25 | 2020-05-25 | Novel large-axle-weight railway freight car three-axle bogie borne by full side bearing |
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| WO2021238717A1 true WO2021238717A1 (en) | 2021-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/CN2021/094287 WO2021238717A1 (en) | 2020-05-25 | 2021-05-18 | New railway wagon three-axle bogie with heavy axle load and full side bearing loading |
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| CN (1) | CN111516723A (en) |
| WO (1) | WO2021238717A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111516723A (en) * | 2020-05-25 | 2020-08-11 | 中车眉山车辆有限公司 | Novel large-axle-weight railway freight car three-axle bogie borne by full side bearing |
| CN113815669B (en) * | 2021-11-01 | 2023-08-22 | 中车长春轨道客车股份有限公司 | Bogie adopting carbon fiber material framework |
| CN114348040B (en) * | 2022-01-19 | 2023-06-30 | 中车株洲车辆有限公司 | Triaxial framework type bogie adapting to large axle weight |
| CN115042831A (en) * | 2022-06-29 | 2022-09-13 | 中车株洲电力机车有限公司 | Railway vehicle bogie frame and bogie |
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| US4170945A (en) * | 1976-10-30 | 1979-10-16 | Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft | Motorized railway vehicles |
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| CN201544977U (en) * | 2009-11-20 | 2010-08-11 | 南车二七车辆有限公司 | Elastically positioning three-axle bogie for wagon axle box |
| CN102556096A (en) * | 2011-12-15 | 2012-07-11 | 哈尔滨轨道交通装备有限责任公司 | Three-axle bogie of railway wagon |
| CN203601286U (en) * | 2013-11-26 | 2014-05-21 | 南车株洲电力机车有限公司 | Co bogie used for electric switch engine |
| CN105882665A (en) * | 2016-05-10 | 2016-08-24 | 同济大学 | Double-T-shaped framework elastic hinging flexible suspension direct driving radial steering frame |
| CN206374754U (en) * | 2016-12-22 | 2017-08-04 | 包头北方创业股份有限公司 | A kind of three-axle bogie of goods train |
| CN110920655A (en) * | 2019-12-20 | 2020-03-27 | 中车眉山车辆有限公司 | Axle box cross connection type express freight car bogie |
| CN111516723A (en) * | 2020-05-25 | 2020-08-11 | 中车眉山车辆有限公司 | Novel large-axle-weight railway freight car three-axle bogie borne by full side bearing |
| CN212605151U (en) * | 2020-05-25 | 2021-02-26 | 中车眉山车辆有限公司 | Novel large-axle-weight railway freight car three-axle bogie borne by full side bearing |
-
2020
- 2020-05-25 CN CN202010448431.XA patent/CN111516723A/en active Pending
-
2021
- 2021-05-18 WO PCT/CN2021/094287 patent/WO2021238717A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4170945A (en) * | 1976-10-30 | 1979-10-16 | Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft | Motorized railway vehicles |
| US4924779A (en) * | 1989-02-21 | 1990-05-15 | Thrall Car Manufacturing Company | Long-travel side bearing for an articulated railroad car |
| CN201544977U (en) * | 2009-11-20 | 2010-08-11 | 南车二七车辆有限公司 | Elastically positioning three-axle bogie for wagon axle box |
| CN102556096A (en) * | 2011-12-15 | 2012-07-11 | 哈尔滨轨道交通装备有限责任公司 | Three-axle bogie of railway wagon |
| CN203601286U (en) * | 2013-11-26 | 2014-05-21 | 南车株洲电力机车有限公司 | Co bogie used for electric switch engine |
| CN105882665A (en) * | 2016-05-10 | 2016-08-24 | 同济大学 | Double-T-shaped framework elastic hinging flexible suspension direct driving radial steering frame |
| CN206374754U (en) * | 2016-12-22 | 2017-08-04 | 包头北方创业股份有限公司 | A kind of three-axle bogie of goods train |
| CN110920655A (en) * | 2019-12-20 | 2020-03-27 | 中车眉山车辆有限公司 | Axle box cross connection type express freight car bogie |
| CN111516723A (en) * | 2020-05-25 | 2020-08-11 | 中车眉山车辆有限公司 | Novel large-axle-weight railway freight car three-axle bogie borne by full side bearing |
| CN212605151U (en) * | 2020-05-25 | 2021-02-26 | 中车眉山车辆有限公司 | Novel large-axle-weight railway freight car three-axle bogie borne by full side bearing |
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| CN111516723A (en) | 2020-08-11 |
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