WO2023236464A1 - 一种膜片齿式联轴器及具有其的转向架 - Google Patents

一种膜片齿式联轴器及具有其的转向架 Download PDF

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WO2023236464A1
WO2023236464A1 PCT/CN2022/135812 CN2022135812W WO2023236464A1 WO 2023236464 A1 WO2023236464 A1 WO 2023236464A1 CN 2022135812 W CN2022135812 W CN 2022135812W WO 2023236464 A1 WO2023236464 A1 WO 2023236464A1
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drum
gear
shaped
diaphragm
shaft
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PCT/CN2022/135812
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English (en)
French (fr)
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沈龙江
张又孔
陈国胜
谢加辉
赖舒平
祝贺
张冲
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中车株洲电力机车有限公司
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Publication of WO2023236464A1 publication Critical patent/WO2023236464A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C9/00—Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
    • B61C9/38—Transmission systems in or for locomotives or motor railcars with electric motor propulsion
    • B61C9/48—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension
    • B61C9/50—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension in bogies

Definitions

  • the invention belongs to the technical field of rail transit bogie driving connection, and in particular relates to a diaphragm gear coupling and a bogie having the same.
  • pinion hollow shaft technology is a drive connection technology currently being developed mainstream in Europe, and is also under research and development in China.
  • appropriate couplings must be matched to achieve relevant functions.
  • the hollow shaft drive of Bo bogie pinion adopts double diaphragm coupling.
  • Chinese utility model patent CN204641745U discloses a gear hollow shaft bogie and discloses a gear using double diaphragm coupling suitable for Bo bogie. Hollow shaft structure.
  • the double diaphragm coupling has limited ability to adapt to lateral displacement, and has a large additional stiffness during lateral displacement. These characteristics determine that it is generally only suitable for Bo bogies.
  • the Chinese invention patent application with publication number CN101277860A discloses a compound universal coupling for rail vehicles, which uses a drum-shaped tooth and diaphragm coupling.
  • the coupling has a large lateral displacement capacity. It is often used in Co bogies, especially the intermediate shaft of Co bogies.
  • the traditional pinion hollow shaft structure suitable for Co bogies is shown in Figures 1 and 2. It consists of wheel set 1, motor 2, diaphragm gear coupling 3, driving shaft bearing 4, driving gear shaft 5, etc. and other gearbox components.
  • the diaphragm gear coupling 3 mainly includes three parts: the transmission shaft 3.1, the connecting hub 3.2, and the drum-shaped tooth assembly 3.3.
  • the drum-shaped tooth assembly 3.3 includes a sleeve with internal teeth and a drum-shaped ring gear located in the sleeve.
  • the drum-shaped teeth of the drum-shaped ring gear mesh with the internal teeth of the sleeve, and the drum-shaped ring gear can move axially relative to the sleeve.
  • the transmission shaft 3.1 passes through the inner hole of the driving gear shaft 5, the drum tooth assembly 3.3 is connected with the driving gear shaft 5, and the connecting hub 3.2 is usually connected with the motor shaft 10 through an interference fit.
  • the object of the present invention is to provide a diaphragm gear coupling and a bogie with the same, aiming at a pinion hollow shaft drive structure suitable for a Co bogie, which satisfies the large lateral displacement between the wheel pair and the frame and the driving gear.
  • a coupling that does not affect the diameter of the driving gear shaft and the inner diameter of the bearing installed on it limits the performance improvement of the entire transmission system.
  • the drum-shaped toothed disc has an internal ring gear, and a drum-shaped toothed wheel is provided inside the drum-shaped toothed disc.
  • the drum-shaped toothed wheel meshes with the internal toothed gear; the drum-shaped toothed wheel is fixedly connected to the motor shaft. , and the drum-shaped ring gear can move axially relative to the drum-shaped gear plate;
  • One end of the transmission plate facing the driving gear shaft is provided with end teeth, and the transmission plate is fixedly connected to the driving gear shaft.
  • the coupling of this application not only integrates the drum-shaped tooth structure and the diaphragm structure, meets the requirements of the Co bogie for axial displacement and radial displacement, but also avoids the coupling transmission shaft in the prior art CN101277860A from passing through the active Problem with the inner hole of the gear shaft. Therefore, the driving shaft gear of the present invention can use a smaller diameter gear, and the bearing can use a smaller inner diameter bearing. The increase in the transmission ratio range and the increase in the maximum speed of the driving bearing can further expand the applicable scope of the drive system.
  • drum-shaped gear plate is provided with a radially extending drum-shaped gear plate arm
  • the transmission plate is provided with a radially extending arm of the transmission plate.
  • the drum-shaped gear plate arm is connected to the transmission plate.
  • the outriggers are all connected to the diaphragm.
  • the present invention also provides a bogie, which includes a wheel pair and a driving device and a transmission device that drive the wheel pair to rotate.
  • the driving device and the transmission device are connected with each other as described above.
  • the diaphragm gear coupling, the driving device includes the motor shaft, and the transmission device includes the driving gear shaft.
  • Figure 1 is a schematic structural diagram of a traditional pinion hollow shaft suitable for Co bogies
  • FIG. 3 shows the diaphragm gear coupling and its driving device of the present invention
  • Figure 5 is an enlarged view of Figure 3 located at position I (second embodiment);
  • Figure 6 (A) is a three-dimensional schematic view of the diaphragm tooth coupling (first perspective); (B) is a three-dimensional schematic view of the diaphragm tooth coupling (second perspective).
  • a diaphragm gear coupling of the present invention includes a coupling body 20.
  • the coupling body 20 includes a drum-shaped gear plate 21 and a transmission plate 22.
  • a diaphragm 13 is provided between the toothed disc 21 and the transmission disc 22.
  • the drum-shaped toothed disc 21 is provided with a radially extending drum-shaped toothed disc extending arm 25, and the transmission plate 22 is provided with a radially extending transmission arm.
  • the disk extending arm 26 , the drum-shaped toothed disk extending arm 25 and the transmission disk extending arm 26 are all connected to the diaphragm 13 .
  • the present invention also provides a bogie, including a wheel pair 1 and a driving device 27 and a transmission device 28 that drive the wheel pair 1 to rotate.
  • the driving device 27 and the transmission device 28 are connected with each other. Diaphragm gear coupling of the present invention.
  • the drum-shaped toothed disc 21 has an internal ring gear, and a drum-shaped toothed wheel 11 is provided inside the drum-shaped toothed disc 21.
  • the drum-shaped toothed wheel 11 It meshes with the internal ring gear of the drum gear 21, and the teeth of the drum gear 11 are drum teeth; the end face of the drum gear 11 facing the motor shaft 10 of the driving device 27 is provided with end teeth 100, and the drum gear 11 It is fixedly connected to the motor shaft 10 through screws 29, and the drum ring gear 11 can move axially (along the motor shaft axial direction) relative to the drum gear plate 21;
  • the transmission plate 22 faces the driving gear shaft 5 of the transmission device 28 One end is provided with end teeth 100, and the transmission plate 22 and the driving gear shaft 5 are fixedly connected through screws 29.
  • one end of the drum-shaped ring gear 11 extends axially to form a drum-shaped ring gear bushing 30, and the drum-shaped ring gear bushing 30 is connected to the drum-shaped ring gear bushing 30.
  • the motor shaft 10 is connected with an interference fit.
  • a sliding bushing (not shown) is provided between the interference-fit connection surfaces.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)
  • Gear Transmission (AREA)

Abstract

本发明提供了一种膜片齿式联轴器及具有其的转向架，所述联轴器包括联轴器本体，所述联轴器本体包括鼓形齿盘和传动盘，所述鼓形齿盘和传动盘之间设有膜片，所述鼓形齿盘和传动盘分别与所述膜片连接；所述鼓形齿盘具有内齿圈，所述鼓形齿盘内设置有鼓形齿圈，所述鼓形齿圈和所述内齿圈啮合；所述鼓形齿圈与电机轴固定连接，且所述鼓形齿圈能够相对于所述鼓形齿盘进行轴向运动；所述传动盘朝向主动齿轮轴的一端设置有端齿，所述传动盘与所述主动齿轮轴固定连接。本发明提供了一种不影响主动齿轮轴直径和安装在其上的轴承内径的联轴器，并满足驱动系统对大横向位移以及主动齿轮轴和电机轴之间的径向位移能力需求。

Description

一种膜片齿式联轴器及具有其的转向架 技术领域
本发明属于轨道交通转向架驱动连接技术领域，尤其涉及一种膜片齿式联轴器及具有其的转向架。
背景技术
在中高速机车领域中，小齿轮空心轴技术是目前欧洲主流发展的一种驱动连接技术，国内也正在处于研发当中。采用小齿轮空心轴技术，必须匹配合适的联轴器来实现相关功能。一般Bo转向架小齿轮空心轴驱动采用双膜片联轴器，中国实用新型专利CN204641745U公开了一种齿轮空心轴转向架，并公开了适用于Bo转向架的采用双膜片联轴器的齿轮空心轴结构。双膜片联轴器适应的横向变位能力有限，且在横向变位时存在较大的附加刚度。这些特点决定了其一般仅适用于Bo转向架。
公开号为CN101277860A的中国发明专利申请公开了一种用于轨道车辆的复式万向联轴节，其采用了鼓形齿与膜片联轴节，该联轴节具有较大的横向位移能力，常用于Co转向架，尤其适用于Co转向架的中间轴，传统的适用于Co转向架的小齿轮空心轴结构如图1和图2所示。包含轮对1、电机2、膜片齿式联轴器3、主动轴轴承4、主动齿轮轴5等以及其他齿轮箱部件等组成。膜片齿式联轴器3主要包括传动轴3.1、连接毂3.2、鼓形齿装配3.3三个部分，鼓形齿装配3.3包括具有内齿的套筒和位于套筒内的鼓形齿圈，鼓形齿圈的鼓形齿与套筒的内齿相互啮合，鼓形齿圈能够相对于套筒进行轴向运动。传动轴3.1穿过主动齿轮轴5的内孔中，鼓形齿装配3.3同主动齿轮轴5连接，连接毂3.2同电机轴10常通过过盈配合连接。
CN101277860A的Co转向架的小齿轮空心轴结构，虽然能够解决三轴转向架中轮对和构架之间的大横向位移以及主动齿轮轴和电机轴之间的径向位移能力需求，但是缺点也是显而易见的。如图1和图2所示，由于传动轴3.1穿过主动齿轮轴5的内孔中，在载荷一定的情况下，为保证传动轴3.1的强度和刚度，其轴不能太细，传动轴3.1和主动齿轮轴5具有一定的径向位移，因此传动轴3.1和主动齿轮轴5内孔也需要留有一定的安全间隙。
综合以上因素，传动轴3.1会导致齿轮轴5直径较大，较大直径的齿轮 轴会带来两个问题：第一是主动齿轮轴齿轮直径较大，影响齿轮箱传动比；第二是导致安装在齿轮轴5上的主动轴轴承4内径较大，而轴承内径越大，其允许的最高转速越低。以上两个因素耦合叠加进而限制整套传动系统的性能和适用范围。
发明内容
本发明目的在于提供一种膜片齿式联轴器及具有其的转向架,针对适用于Co转向架的小齿轮空心轴驱动结构，在满足轮对和构架之间的大横向位移以及主动齿轮轴和电机轴之间的径向位移能力需求前提下，缺乏一款不影响主动齿轮轴直径和安装在其上的轴承内径的联轴器，限制了整套传动系统的性能提升。本发明所要解决的问题是提供一种不影响主动齿轮轴直径和安装在其上的轴承内径的联轴器，并满足驱动系统对大横向位移以及主动齿轮轴和电机轴之间的径向位移能力需求。
为解决上述技术问题，本发明的具体技术方案如下：
一种膜片齿式联轴器，该联轴器包括联轴器本体，所述联轴器本体包括鼓形齿盘和传动盘，所述鼓形齿盘和传动盘之间设有膜片，所述鼓形齿盘和传动盘分别与所述膜片连接；
所述鼓形齿盘具有内齿圈，所述鼓形齿盘内设置有鼓形齿圈，所述鼓形齿圈和所述内齿圈啮合；所述鼓形齿圈与电机轴固定连接，且所述鼓形齿圈能够相对于所述鼓形齿盘进行轴向运动；
所述传动盘朝向主动齿轮轴的一端设置有端齿，所述传动盘与所述主动齿轮轴固定连接。
通过以上结构，鼓形齿圈能够相对于鼓形齿盘进行轴向运动，由于鼓形齿圈与鼓形齿盘啮合的齿为鼓形齿，同时鼓形齿圈和鼓形齿盘之间也发生一定的径向位移；相比于现有技术，上述结构实质上是将鼓形齿结构从主动齿轮轴一侧转移到了电机轴一侧，从而避免了现有技术中在主动齿轮轴内设置贯穿的内孔的技术缺陷。本申请的联轴器既集成了鼓形齿结构和膜片结构，满足Co转向架对轴向位移和径向位移的要求，同时又避免了现有技术CN101277860A中联轴器传动轴穿过主动齿轮轴内孔的问题。由此，本发明的主动轴齿轮可以采用较小直径齿轮，轴承可以采用较小内径的轴承，传动比 范围的增大以及主动轴承最高转速的提高，可进一步扩大驱动系统的适用范围。
进一步地，所述鼓形齿盘上设有径向延伸的鼓形齿盘伸臂，所述传动盘上设有径向延伸的传动盘伸臂，所述鼓形齿盘伸臂与传动盘伸臂均与膜片连接。
进一步地，所述鼓形齿圈朝向所述电机轴的端面设置有端齿，所述鼓形齿圈和所述电机轴通过螺钉固定连接。通过设置端齿，使得鼓形齿圈和电机轴的连接更加可靠。
进一步地，所述鼓形齿圈的鼓形齿圈轴套和所述电机轴过盈配合连接。优选地，所述鼓形齿圈轴套与所述电机轴的连接面间设有滑移衬套。鼓形齿圈和电机轴通过过盈配合，有利于简化两者的连接结构，过盈配合连接的优势是取消了连接端面齿，在过盈配合连接面间设置滑移衬套能够传递电机正常的扭矩载荷，当电机异常过大的扭矩时，会导致滑移衬套打滑而阻断异常扭矩传递。
进一步地，所述传动盘和所述主动齿轮轴通过螺钉固定连接。
基于同一个设计构思，本发明还提供了一种转向架，该转向架包括轮对及驱动所述轮对转动的驱动装置和传动装置，所述驱动装置和传动装置之间连接有如上所述的膜片齿式联轴器，所述驱动装置包括所述电机轴，所述传动装置包括所述主动齿轮轴。
本发明的一种膜片齿式联轴器及具有其的转向架具有以下优点：提供了一种不影响主动齿轮轴直径和安装在其上的轴承内径的联轴器，并满足驱动系统对大横向位移以及主动齿轮轴和电机轴之间的径向位移能力需求。
附图说明
图1为传统的适用于Co转向架的小齿轮空心轴结构示意图；
图2为传统的适用于Co转向架的齿式联轴器结构示意图；
图3为本发明的膜片齿式联轴器及其驱动装置；
图4为图3位于I处的放大图(第一实施例)；
图5为图3位于I处的放大图(第二实施例)；
图6的(A)为膜片齿式联轴器立体示意图(第一视角)；(B)为膜片齿式联轴器立体示意图(第二视角)。
图中标记说明：1、轮对；2、电机；3、膜片齿式联轴器；3.1、传动轴；3.2、连接毂；3.3、鼓形齿装配；4、主动轴轴承；5、主动齿轮轴；10、电机轴；11、鼓形齿圈；13、膜片；20、联轴器本体；21、鼓形齿盘；22、传动盘；25、鼓形齿盘伸臂；26、传动盘伸臂；27、驱动装置；28、传动装置；29、螺钉；30、鼓形齿圈轴套；100、端齿。
具体实施方式
为了更好地了解本发明的目的、结构及功能，下面结合附图，对本发明做进一步详细的描述。
如图3和图4所示，本发明的一种膜片齿式联轴器包括联轴器本体20，所述联轴器本体20包括鼓形齿盘21和传动盘22，所述鼓形齿盘21和传动盘22之间设有膜片13，所述鼓形齿盘21上设有径向延伸的鼓形齿盘伸臂25，所述传动盘22上设有径向延伸的传动盘伸臂26，所述鼓形齿盘伸臂25与传动盘伸臂26均与膜片13连接。
如图3所示，本发明还提供了一种转向架，包括轮对1及驱动所述轮对1转动的驱动装置27和传动装置28，所述驱动装置27和传动装置28之间连接有本发明的膜片齿式联轴器。
如图3、图4和图6所示，作为本发明的第一实施例，鼓形齿盘21具有内齿圈，鼓形齿盘21内设置有鼓形齿圈11，鼓形齿圈11和鼓形齿盘21的内齿圈啮合，鼓形齿圈11的齿为鼓形齿；鼓形齿圈11朝向驱动装置27的电机轴10的端面设置有端齿100，鼓形齿圈11和电机轴10通过螺钉29固定连接，且鼓形齿圈11能够相对于鼓形齿盘21进行轴向(沿着电机轴轴向)运动；传动盘22朝向传动装置28的主动齿轮轴5的一端设置有端齿100，传动盘22与主动齿轮轴5通过螺钉29固定连接。
如图3、图5和图6所示，作为本发明的第二实施例，鼓形齿圈11的一端轴向延伸形成鼓形齿圈轴套30，所述鼓形齿圈轴套30与所述电机轴10过盈配合连接。优选地，在过盈配合连接面间设置滑移衬套(未图示)。
可以理解，本发明是通过一些实施例进行描述的，本领域技术人员知悉 的，在不脱离本发明的精神和范围的情况下，可以对这些特征和实施例进行各种改变或等效替换。另外，在本发明的教导下，可以对这些特征和实施例进行修改以适应具体的情况及材料而不会脱离本发明的精神和范围。因此，本发明不受此处所公开的具体实施例的限制，所有落入本申请的权利要求范围内的实施例都属于本发明所保护的范围内。

Claims (7)

  1. 一种膜片齿式联轴器，包括联轴器本体(20)，所述联轴器本体(20)包括鼓形齿盘(21)和传动盘(22)，所述鼓形齿盘(21)和传动盘(22)之间设有膜片(13)，所述鼓形齿盘(21)和传动盘(22)分别与所述膜片(13)连接，其特征在于：
    所述鼓形齿盘(21)具有内齿圈，所述鼓形齿盘(21)内设置有鼓形齿圈(11)，所述鼓形齿圈(11)和所述内齿圈啮合；所述鼓形齿圈(11)与电机轴(10)固定连接，且所述鼓形齿圈(11)能够相对于所述鼓形齿盘(21)进行轴向运动；
    所述传动盘(22)朝向主动齿轮轴(5)的一端设置有端齿(100)，所述传动盘(22)与所述主动齿轮轴(5)固定连接。
  2. 根据权利要求1所述的膜片齿式联轴器，其特征在于，所述鼓形齿盘(21)上设有径向延伸的鼓形齿盘伸臂(25)，所述传动盘(22)上设有径向延伸的传动盘伸臂(26)，所述鼓形齿盘伸臂(25)与传动盘伸臂(26)均与膜片(13)连接。
  3. 根据权利要求1所述的膜片齿式联轴器，其特征在于，所述鼓形齿圈(11)朝向所述电机轴(10)的端面设置有端齿(100)，所述鼓形齿圈(11)和所述电机轴(10)通过螺钉(29)固定连接。
  4. 根据权利要求1所述的膜片齿式联轴器，其特征在于，所述鼓形齿圈(11)的鼓形齿圈轴套(30)和所述电机轴(10)过盈配合连接。
  5. 根据权利要求4所述的膜片齿式联轴器，其特征在于，所述鼓形齿圈轴套(30)与所述电机轴(10)的连接面间设有滑移衬套。
  6. 根据权利要求1所述的膜片齿式联轴器，其特征在于，所述传动盘(22)和所述主动齿轮轴(5)通过螺钉(29)固定连接。
  7. 一种转向架，包括轮对(1)及驱动所述轮对(1)转动的驱动装置(27)和传动装置(28)，其特征在于，所述驱动装置(27)和传动装置(28)之间连接有如权利要求1-5任意一项所述的膜片齿式联轴器，所述驱动装置(27)包括所述电机轴(10)，所述传动装置(28)包括所述主动齿轮轴(5)。
PCT/CN2022/135812 2022-06-08 2022-12-01 一种膜片齿式联轴器及具有其的转向架 WO2023236464A1 (zh)

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