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WO2025050552A1 - 一种铁路车辆轮对径向装置及其转向架 - Google Patents

一种铁路车辆轮对径向装置及其转向架 Download PDF

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Publication number
WO2025050552A1
WO2025050552A1 PCT/CN2023/138972 CN2023138972W WO2025050552A1 WO 2025050552 A1 WO2025050552 A1 WO 2025050552A1 CN 2023138972 W CN2023138972 W CN 2023138972W WO 2025050552 A1 WO2025050552 A1 WO 2025050552A1
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WO
WIPO (PCT)
Prior art keywords
bogie
wheelset
connecting rod
connecting rods
braking device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2023/138972
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English (en)
French (fr)
Inventor
张光才
祝笈
袁杰
敬宣萱
冯成礼
张锐
罗汉江
王云贵
廖军
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CRRC Meishan Co Ltd
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CRRC Meishan Co Ltd
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Publication date
Application filed by CRRC Meishan Co Ltd filed Critical CRRC Meishan Co Ltd
Priority to AU2023387757A priority Critical patent/AU2023387757A1/en
Publication of WO2025050552A1 publication Critical patent/WO2025050552A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • 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

Definitions

  • the invention belongs to the technical field of railway vehicle design, in particular to the technical field of railway vehicle bogie design, and specifically relates to a wheelset radial device and a bogie thereof which can adapt to different basic braking devices.
  • the auxiliary frame radial bogie is one of the main bogies for my country's railway freight cars. It is mainly composed of two auxiliary frames and two connecting rods connected by pins.
  • the wheelset radial device couples the movement of the front and rear wheelsets, making the bogie have greater shear stiffness and less bending stiffness.
  • the vehicle has good running stability when running in a straight line and excellent curve passing performance when running in a curve, and is highly favored by users.
  • the existing domestic railway freight car auxiliary frame radial bogie In order to meet the requirements of the lower limit of the vehicle and the layout space of the basic brake device, and to consider the design layout and compactness of the bolster, the existing domestic railway freight car auxiliary frame radial bogie generally adopts a structure in which the connecting rod passes through the bolster and the lever brake device is placed under the bolster. This technical solution has the problem of difficulty in taking into account the integrated brake device.
  • Patent application ZL201210180507.0 A sub-frame radial bogie and patent application ZL202122471669.7
  • a sub-frame radial bogie adaptable to multiple basic braking devices disclose different sub-frame radial bogies.
  • the connecting rods in the radial devices of the two bogie wheels cross-penetrate the bolster assembly holes and are located below the basic braking devices.
  • This technical solution not only limits the insertion depth of the bogie center pin into the bolster, which is generally 70mm to 100mm, but also increases the risk of separation between the vehicle and the bogie during use; and the two sub-frame radial bogies cannot simultaneously assemble lever braking devices and integrated braking devices.
  • the present invention discloses a railway vehicle wheel set radial device and a bogie thereof in view of the deficiencies of the prior art.
  • the present invention aims to provide a wheel set radial device and a bogie thereof with better compatibility and excellent performance and capable of adapting to different basic brake devices.
  • the present invention firstly discloses a radial device for wheelsets of railway vehicles.
  • the radial device for wheelsets is composed of two front and rear auxiliary frames and two cross-arranged connecting rods connected by round pins.
  • the device is characterized in that: the auxiliary frame is a U-shaped structure, and the middle part of the lateral arm of the auxiliary frame is sunken to form a concave structure; the lateral arm of the auxiliary frame is provided with a connecting rod mounting surface for mounting the connecting rods; the connecting rods are cross-arranged, and the ends are located on the connecting rod mounting surfaces and are connected by round pins.
  • the present invention further discloses a railway vehicle bogie, comprising a wheelset and bearings, a bolster assembly, a side frame assembly, a basic braking device and a wheelset radial device, characterized in that: the above-mentioned wheelset radial device is adopted, the connecting rod and the basic braking device both pass through the bolster assembly hole, the connecting rod is located at the lower side of the basic braking device, and the depth of the bogie center pin inserted into the bolster assembly is greater than or equal to 160 mm.
  • a basic brake device safety chain mounting seat is arranged on the inner side of the sub-frame transverse arm and at the junction with the curved arm, and the safety chain is fixed to the safety chain mounting seat by fasteners.
  • the bolster assembly hole of the bolster assembly is a high-section rectangular structure
  • the connecting rod and the basic braking device both pass through the bolster assembly hole
  • the connecting rod is located at the lower side of the basic braking device.
  • the middle part of the sub-frame transverse arm of the present invention is sunken to form a concave structure, and its cross section is an isosceles trapezoidal structure, with a concave depth of 32mm, an upper bottom width of 300mm, and a lower bottom width of 425mm.
  • the upper and lower ends of the concave surface are smoothly connected to the arc of the sub-frame transverse arm.
  • the sunken space can effectively avoid interference between the basic brake device pull rod/brake adjuster and the upper plane of the center of the sub-frame transverse arm when the bogie is replaced.
  • the basic braking device can be selected as a lever braking device or an integrated braking device.
  • the bolster assembly hole adopts a high-section rectangular structure and a sub-frame transverse arm sinking structure.
  • An innovative structure is adopted in which a connecting rod and a basic braking device pass through the bolster assembly hole, and the connecting rod is located under the basic braking device. This makes it suitable for the installation of lever braking devices and integrated braking devices, improves the versatility of the bogie, realizes modular replacement, and is conducive to the technical upgrading of the bogie.
  • the connecting rod is located below the basic braking device, and the insertion depth of the bogie center pin is no longer limited by the vertical position of the connecting rod, which increases the insertion depth of the center pin and improves the safety during vehicle operation.
  • the sub-frame is provided with a basic brake device safety chain mounting seat, and the safety chain is fixed to the safety chain mounting seat provided on the sub-frame by fasteners to prevent the risk of the basic brake device falling off during the operation of the vehicle.
  • a concave structure is arranged at the center of the sub-frame transverse arm, and its cross section is an isosceles trapezoidal structure, so as to avoid interference between the basic braking device and the upper plane at the center of the sub-frame transverse arm when the bogie is replaced with a shoe.
  • the present invention not only ensures the advantages of good running stability and excellent curve negotiating performance of the auxiliary frame type radial bogie, but also satisfies the requirement that the bogie can adapt to the installation of different basic braking devices, thereby improving the adaptability and versatility of the bogie.
  • FIG. 1 is a schematic diagram of a wheelset radial device and a bogie thereof according to the present invention.
  • FIG. 2 is a schematic diagram of a bolster according to the present invention.
  • FIG3 is a schematic diagram of the structure of the radial device of the wheelset of the present invention.
  • FIG. 4 is a schematic diagram of the sub-frame structure of the present invention.
  • FIG. 5 is a schematic diagram of a bogie equipped with a lever brake device according to the present invention.
  • FIG. 6 is a schematic diagram of a bogie equipped with an integrated braking device according to the present invention.
  • Figure 7 is a schematic diagram of the structure of an existing auxiliary frame type radial bogie.
  • 1-wheel set and bearing 2-side frame composition, 3-rocker composition, 4-basic braking device, 5-wheel set radial device, 6-center pin, 31-rocker assembly hole, 51-auxiliary frame, 52-connecting rod, 53-round pin, 511-transverse arm, 512-connecting rod mounting surface, 513-safety chain mounting seat.
  • FIG. 7 is a conventional railway freight car auxiliary frame type radial bogie, which is mainly composed of components such as wheelsets and bearings, bolster components, side frame components, basic braking devices and wheelset radial devices.
  • FIGS 1 to 6 show the basic structure of the wheelset radial device and its bogie of the present invention, which are composed of wheelset and bearing, bolster assembly, side frame assembly, basic brake device and wheelset radial device.
  • the wheelset radial device is composed of two front and rear auxiliary frames and two cross-arranged connecting rods connected by round pins.
  • the auxiliary frame is a U-shaped structure, and the middle part of the sub-frame transverse arm is sunken to increase the vertical distance between the upper plane of the connecting rod and the center line of the axle, which is conducive to the arrangement of the connecting rod and the basic braking device.
  • the secondary frame transverse arm is provided with a connecting rod mounting surface for mounting the connecting rod.
  • the connecting rods are arranged crosswise, and the ends are placed on the connecting rod mounting surface and connected by round pins.
  • the connecting rod and the basic braking device both pass through the bolster assembly hole, and the connecting rod is located at the lower side of the basic braking device, thereby improving the adaptability of the wheelset radial device and the basic braking device.
  • the bolster assembly hole is a high-section rectangular structure, which not only meets the requirements of the installation of connecting rods and different basic braking devices, but also ensures that the bolster, connecting rods and basic braking devices do not interfere with each other under any working conditions.
  • the basic brake device is a lever brake device or an integrated brake device.
  • the center of the sub-frame transverse arm is set as a concave structure, and its cross section is an isosceles trapezoidal structure, which can effectively avoid the interference between the basic brake device and the upper plane of the center of the sub-frame transverse arm when the bogie is replaced.
  • the basic brake device safety chain mounting seat is set on both sides of the sub-frame.
  • the mounting seat is a U-shaped structure.
  • the safety chain is fixed to the mounting seat by fasteners to prevent the risk of the brake beam falling off during vehicle driving.
  • the connecting rod is placed on the lower side of the foundation brake, and the insertion depth of the center pin is no longer limited by the vertical position of the connecting rod.
  • the insertion depth of the center pin is 160mm, which improves the safety during vehicle operation.
  • This bogie breaks through the conventional radial bogie structure and fully considers the vehicle limit.
  • the connecting rod of the wheelset radial device and the basic brake device all pass through the bolster assembly hole, and the innovative use of the connecting rod placed on the lower side structure of the basic brake device allows the bogie to be equipped with different basic brake devices currently in mainstream use.
  • the bogie is equipped with a car body, there is no need to modify the existing car body, and the bogie can be interchanged as a whole, which not only improves the maintenance efficiency, but also saves the modification cost and improves the transportation economy.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

本发明公开了一种铁路车辆轮对径向装置及其转向架。轮对径向装置由前后两个副构架与两交叉布置的连接杆通过圆销销接构成，副构架为U型结构，副构架横向臂中部下沉形成凹面结构；副构架横向臂设置有连接杆安装面，用于安装连接杆；连接杆交叉布置，端部位于连接杆安装面并通过圆销销接；转向架包括轮对及轴承、摇枕组成、侧架组成、基础制动装置和轮对径向装置，采用上述轮对径向装置，连接杆和基础制动装置均贯穿摇枕组装孔，连接杆位于基础制动装置下侧，转向架中心销插入摇枕组成的深度≥160mm。本发明不仅保证了良好的运行稳定性和优良的曲线通过性能等优点，也满足转向架可适应不同基础制动装置的配装，提高了转向架的适配性和通用性。

Description

一种铁路车辆轮对径向装置及其转向架 技术领域
本发明属于铁路车辆设计技术领域，尤其属于铁路车辆转向架设计技术领域，具体涉及一种能适应不同基础制动装置的轮对径向装置及其转向架。
背景技术
副构架式径向转向架是我国铁路货车主型转向架之一，主要是由两个副构架和两根连接杆通过销接而成的轮对径向装置耦合前后轮对的运动，使转向架具有较大的抗剪刚度和较小的抗弯刚度。其直线运行时车辆具备良好的运行稳定性，曲线运行时车辆具备优良的曲线通过性能等优点，备受用户青睐。
国内现有铁路货车副构架式径向转向架为满足车辆下部限界要求、基础制动装置的布置空间，同时考虑摇枕设计布局和结构紧凑性，一般采用连接杆贯穿摇枕，杠杆制动装置放置在摇枕下方的结构。该技术方案存在较难兼顾集成制动装置的问题。
专利申请ZL201210180507.0一种副构架径向转向架和专利申请ZL202122471669.7一种适应多种基础制动装置的副构架式径向转向架公开了不同的副构架径向转向架，两种转向架轮对径向装置中的连接杆交叉贯穿摇枕组装孔且位于基础制动装置下方，该技术方案不仅限制了转向架中心销插入摇枕的深度，插入深度一般为70mm～100mm，同时运用过程中增加了车辆与转向架分离的风险；而且两种副构架式径向转向架不能同时兼顾装配杠杆制动装置和集成制动装置。
随着铁路货车技术的发展，集成制动装置的应用也越来越广泛。现有副构架式径向转向架因其固有的结构特点，只能配装杠杆制动装置或集成制动装置，为提高副构架式径向转向架的适应性，实现基础制动装置的模块化换装，需要研究副构架式径向转向架结构布局，设计更优异的径向转向架，提升径向转向架兼容性，实现技术升级换代。
发明内容
本发明根据现有技术的不足公开了一种铁路车辆轮对径向装置及其转向架。本发明目的是提供一种具有更好兼容性、性能优异的能适应不同基础制动装置的轮对径向装置及其转向架。
本发明通过以下技术方案实现：
本发明首先公开了一种铁路车辆轮对径向装置，轮对径向装置由前后两个副构架与两交叉布置的连接杆通过圆销销接构成，其特征在于：所述副构架为U型结构，副构架横向臂中部下沉形成凹面结构；副构架横向臂设置有连接杆安装面，用于安装连接杆；连接杆交叉布置，端部位于连接杆安装面并通过圆销销接。
本发明进一步公开了一种铁路车辆转向架，包括轮对及轴承、摇枕组成、侧架组成、基础制动装置和轮对径向装置，其特征在于：采用上述轮对径向装置，连接杆和基础制动装置均贯穿摇枕组装孔，连接杆位于基础制动装置下侧，转向架中心销插入摇枕组成的深度大于等于160mm。
进一步所述副构架横向臂内侧、与弯臂结合部设置基础制动装置安全链安装座，通过紧固件将安全链固定安全链安装座上。
进一步所述摇枕组成的摇枕组装孔为高截面矩形结构，连接杆和基础制动装置均贯穿摇枕组装孔，连接杆位于基础制动装置下侧。
本发明所述副构架横向臂中部下沉形成凹面结构，其断面呈等腰梯形结构，下凹深度32mm，上底宽度300mm，下底宽度425mm，凹面上、下底两端与副构架横向臂圆弧光滑连接。该下沉空间能有效避免转向架换瓦时基础制动装置拉杆/闸调器与副构架横向臂中心上平面干涉。
采用本发明轮对径向装置，所述基础制动装置可以选择杠杆制动装置或集成制动装置。
本发明轮对径向装置及其转向架具有以下优点：
摇枕组装孔采用高截面矩形结构和副构架横向臂下沉结构，创新采用连接杆和基础制动装置贯穿摇枕组装孔且连接杆位于基础制动装置下方的结构，使其适应配装杠杆制动装置和集成制动装置，提高转向架的通用性，实现模块化换装，利于转向架技术升级。
连接杆位于基础制动装置下方，转向架中心销插入深度不再受连接杆垂向位置限制，增加了中心销插入深度，提高了车辆运行过程中的安全性。
副构架设置基础制动装置安全链安装座，通过紧固件将安全链固定在副构架设置的安全链安装座上，防止车辆运行过程中基础制动装置脱落的风险。
副构架横向臂中心设置下凹结构，其断面呈等腰梯形结构，避免转向架换瓦时基础制动装置与副构架横向臂中心上平面干涉。
本发明不仅保证了副构架式径向转向架良好的运行稳定性和优良的曲线通过性能等优点，也满足转向架可适应不同基础制动装置的配装，提高了转向架的适配性和通用性。
附图说明
图1为本发明的轮对径向装置及其转向架示意图。
图2为本发明的摇枕示意图。
图3为本发明的轮对径向装置结构示意图。
图4为本发明的副构架结构示意图。
图5为本发明配装杠杆制动装置的转向架示意图。
图6为本发明配装集成制动装置的转向架示意图。
图7为现有副构架式径向转向架结构示意图。。
其中：1-轮对及轴承，2-侧架组成，3-摇枕组成，4-基础制动装置，5-轮对径向装置，6-中心销，31-摇枕组装孔，51-副构架，52-连接杆，53-圆销，511-横向臂，512-连接杆安装面，513-安全链安装座。
具体实施方式
下面结合具体实施方式对本发明进一步说明，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。
结合附图。
如图7所示，图7为现有铁路货车副构架式径向转向架，主要由轮对及轴承、摇枕组成、侧架组成、基础制动装置和轮对径向装置等部件组成。
图1至图6为本发明轮对径向装置及其转向架基本结构，由轮对及轴承、摇枕组成、侧架组成、基础制动装置和轮对径向装置等部件组成。其中，轮对径向装置由前后两个副构架与两交叉布置的连接杆通过圆销销接构成。
副构架为U型结构，副构架横向臂中部下沉，增加连接杆上平面与车轴中心线垂向距离，利于布置连接杆和基础制动装置。
副构架横向臂设置有连接杆安装面，用于安装连接杆。
连接杆交叉布置，端部放置在连接杆安装面并通过圆销销接。
连接杆和基础制动装置均贯穿摇枕组装孔，连接杆位于基础制动装置下侧，提高轮对径向装置与基础制动装置的适配性。
摇枕组装孔为高截面矩形结构，不仅满足连接杆和不同基础制动装置的安装，同时能确保在任何工况下摇枕、连接杆和基础制动装置不发生干涉。
基础制动装置为杠杆制动装置或集成制动装置。
副构架横向臂中心设置为下凹结构，其断面呈等腰梯形结构，能够有效避免转向架换瓦时基础制动装置与副构架横向臂中心上平面干涉。副构架两侧均设置有基础制动装置安全链安装座，安装座为U型结构，通过紧固件将安全链固定在安装座上，防止车辆行车过程中制动梁脱落的风险。
连接杆放置在基础制动下侧，中心销插入深度不再受连接杆垂向位置限制，中心销插入深度160mm，提高了车辆运行过程中的安全性。
该转向架突破常规径向转向架结构，充分考虑车辆限界，通过增加摇枕组装孔截面高度、降低副构架横向臂垂向高度以及横向臂中心采用下凹结构，使轮对径向装置的连接杆和基础制动装置均贯穿摇枕组装孔，且创新使用连接杆置于基础制动装置下侧结构，使其满足转向架能配装目前主流运用的不同基础制动装置。该转向架在配装车体时，无须对既有车体进行改造，可实现转向架整机互换，不仅提高了检修效率，同时节约了改造成本，提升了运输经济性。

Claims (6)

  1. 一种铁路车辆轮对径向装置，轮对径向装置由前后两个副构架与两交叉布置的连接杆通过圆销销接构成，其特征在于：所述副构架为U型结构，副构架横向臂中部下沉形成凹面结构；副构架横向臂设置有连接杆安装面，用于安装连接杆；连接杆交叉布置，端部位于连接杆安装面并通过圆销销接。
  2. 一种铁路车辆转向架，包括轮对及轴承、摇枕组成、侧架组成、基础制动装置和轮对径向装置，其特征在于：采用权利要求1所述的轮对径向装置，连接杆和基础制动装置均贯穿摇枕组装孔，连接杆位于基础制动装置下侧，转向架中心销插入摇枕组成的深度大于等于160mm。
  3. 根据权利要求2所述的铁路车辆转向架，其特征在于：所述副构架横向臂内侧、与弯臂结合部设置基础制动装置安全链安装座，通过紧固件将安全链固定安全链安装座上。
  4. 根据权利要求2所述的铁路车辆转向架，其特征在于：所述摇枕组成的摇枕组装孔为高截面矩形结构，连接杆和基础制动装置均贯穿摇枕组装孔，连接杆位于基础制动装置下侧。
  5. 根据权利要求2或3或4所述的铁路车辆转向架，其特征在于：所述副构架横向臂中部下沉形成凹面结构，其断面呈等腰梯形结构，凹面上、下底两端与副构架横向臂圆弧光滑连接。
  6. 根据权利要求5所述的铁路车辆转向架，其特征在于：所述基础制动装置为杠杆制动装置或集成制动装置。
PCT/CN2023/138972 2023-09-08 2023-12-15 一种铁路车辆轮对径向装置及其转向架 Pending WO2025050552A1 (zh)

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