WO2017049995A1 - 电机抱轴安装式永磁直驱转向架 - Google Patents

电机抱轴安装式永磁直驱转向架 Download PDF

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Publication number
WO2017049995A1
WO2017049995A1 PCT/CN2016/090031 CN2016090031W WO2017049995A1 WO 2017049995 A1 WO2017049995 A1 WO 2017049995A1 CN 2016090031 W CN2016090031 W CN 2016090031W WO 2017049995 A1 WO2017049995 A1 WO 2017049995A1
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WIPO (PCT)
Prior art keywords
axle
permanent magnet
motor
bearing
traction
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PCT/CN2016/090031
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English (en)
French (fr)
Inventor
胡定祥
楚永萍
赵旭东
冯遵委
陈德强
金鑫
孙海东
贾小平
肖遥
张羽
张杨
祝航
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中车南京浦镇车辆有限公司
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Application filed by 中车南京浦镇车辆有限公司 filed Critical 中车南京浦镇车辆有限公司
Publication of WO2017049995A1 publication Critical patent/WO2017049995A1/zh

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61CLOCOMOTIVES; MOTOR RAILCARS
    • B61C9/00Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
    • B61C9/38Transmission systems in or for locomotives or motor railcars with electric motor propulsion
    • B61C9/46Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors forming parts of wheels

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  • the invention relates to a motor holding shaft mounted permanent magnet direct drive bogie, belonging to the technical field of rail vehicle bogies.
  • the present invention discloses a motor-mounted axle-mounted permanent magnet direct drive bogie, and the specific technical solutions are as follows:
  • a motor-mounted shaft-mounted permanent magnet direct-drive bogie for mounting under a rail vehicle for steering during travel of a rail vehicle, the bogie comprising two frame devices, two permanent magnet synchronous traction motors, two Triangular elastic support device, four wheelset axlebox devices,
  • the four wheelset axlebox devices are arranged in a rectangular array under the rail vehicle, and the two wheelset axlebox devices adjacent to each other in the forward direction of the rail vehicle are connected by a frame device, and are located on both sides of the rail vehicle in the forward direction.
  • the two wheels are connected to the left and right by the axle, and the permanent magnet synchronous motor drives the axle to drive the two wheels to rotate to realize the driving;
  • the two frame devices are symmetrically located on the left and right sides of the direction of travel of the rail vehicle, each of the frame devices extending toward a centerline position of the rail vehicle, and the two frame devices pass through a double traction rod device at a centerline position of the rail vehicle Connecting, the double traction rod device is for connecting with a rail vehicle;
  • the triangular elastic support device connects the permanent magnet synchronous traction motor and the double traction pull rod device.
  • a rubber pile suspension device is disposed between each of the wheelset axle box devices and the corresponding frame device.
  • a two-line air spring suspension device is disposed above the center of each of the frame devices.
  • Two tread brake devices are disposed on opposite sides of the two frame devices, and the two tread brake devices of each frame device are respectively used for connecting corresponding frame devices and wheels at the front and rear ends of the frame device For the axle box device.
  • the rotor of the permanent magnet synchronous traction motor is interference mounted on an axle of the wheelset axlebox device, the axle passing through the center of the permanent magnet synchronous traction motor;
  • the motor end cover is mounted on one side of the stator of the permanent magnet synchronous traction motor.
  • the motor end cover is placed on the axle by a cylindrical roller bearing, and the outer ring of the cylindrical roller bearing is pressed by the outer ring of the bearing and the inner ring of the bearing.
  • the cover is laterally fixed, the bearing inner ring gland is attached to the surface of the axle, the bearing outer ring gland is pressed around the inner ring of the bearing inner ring, and the inner side of the inner ring of the cylindrical roller bearing passes through the inner ring of the bearing inner ring
  • the outer side of the inner ring of the cylindrical roller bearing is laterally positioned by the bearing outer ring that is over-engaged on the axle;
  • the motor side cover 2 is mounted on the other side of the stator of the permanent magnet synchronous traction motor, and the motor end cover 2 passes the cylindrical roller bearing 2 Located on the axle, there is a four-point ball bearing between the motor end cover 2 and the axle.
  • the cylindrical roller bearing 2 is located between the stator and the four-point ball bearing, and the outer ring of the cylindrical roller bearing two and four-point ball bearings Separated by spacers, the inner ring of the cylindrical roller bearing two and four-point ball bearings are separated by a spacer ring, and the outer ring of the outer ring of the cylindrical roller bearing is a bearing outer ring gland and a bearing inner ring gland.
  • the bearing inner ring gland is attached to the surface of the axle, the bearing outer ring gland is pressed around the inner ring of the bearing inner ring, and the inner side of the inner ring of the cylindrical roller bearing 2 is laterally blocked by the inner ring of the bearing.
  • the outer side of the inner ring of the cylindrical roller bearing 2 is over-engaged on the axle and laterally positioned by a bearing outer ring that is limited to the wheel.
  • Each of the stator surfaces of each of the permanent magnet synchronous traction motors is provided with a plurality of elastic node mounts, and the triangular elastic support device has three elastic nodes, wherein two elastic nodes are connected with the elastic node mounts, and the other elastic nodes are connected with The frame device is connected, and the elastic node and the triangular elastic support device and the frame device are left with a gap.
  • the double traction rod device is disposed at a front and a rear ends of the rail vehicle, and is provided with a plurality of center pins, wherein the center pin is used to connect the double traction rod device to the underside of the rail vehicle, and a rubber sleeve and a rubber sleeve are installed at a lower portion of the center pin.
  • the traction body is externally mounted, the rubber sleeve passes through the center of the traction body, and the traction rods are respectively installed at two ends of the traction body, and the frame device is provided with two traction stop composite seats, and the ends of each traction rod Both are connected to corresponding traction stop composite seats, which are respectively located at two ends of the double traction rod device.
  • the two-line air spring suspension device comprises an air spring, a two-line vertical damper, a two-line lateral damper, an over-charge-resistant steel wire rope and a lateral gear mounting seat, and the air spring falls on the frame device, and the second system is suspended.
  • the damper and the second-line transverse damper are mounted on a pair of opposite sides of the air spring for connecting the rail vehicle and the frame device, and the lateral gear mount is disposed between the second-line transverse damper and the air spring for The rail vehicle is mounted on the rail vehicle and the rail vehicle and the frame device are connected.
  • the side of the lateral gear mounting seat facing the air spring is provided with an elastic buffer rubber stop, and the lateral gear mounting seat is further provided with an anti-overcharge steel wire rope, and the anti-overfill steel wire rope is located at the elastic The opposite side of the cushion rubber stop.
  • a groove is arranged in the middle of the axle.
  • the driving motor used in the traditional bogie is an asynchronous motor.
  • the invention adopts a permanent magnet synchronous traction motor, and the permanent magnet synchronous motor rotor adopts a permanent magnet structure, does not need to consume electricity, and has high efficiency and small volume compared with the asynchronous motor. , light weight, energy saving and environmental protection;
  • the permanent magnet synchronous traction axle is mounted on the axle of the wheel-to-shaft box device. Both ends of the rotor are mounted on the axle of the vehicle through the interference pressure. The middle of the axle is provided with a groove for releasing the bending deformation of the axle. Supported on the axle by two cylindrical roller bearings on the left and right sides, and subjected to vertical vibration through two cylindrical roller bearings, lateral positioning and lateral vibration through the right four-point ball bearing, the motor stator shell up and down respectively.
  • the upper and lower elastic nodes of the triangular elastic supporting device are fastened by bolts and supported on the frame device by another longitudinally slotted elastic node, and the force arm for balancing the traction braking torque of the motor is increased by the triangular elastic supporting device. Reducing the force of the frame, and the device has less lateral and longitudinal positioning stiffness to the suspension of the rubber pile suspension, ensuring the small curve passing performance of the bogie;
  • the motor-mounted shaft-mounted permanent magnet direct-drive bogie of the present invention is provided with a two-line air spring suspension device for laterally limiting, and an elastic buffer rubber stop is mounted on the lateral gear mounting seat of the vehicle body, and the vehicle body is mounted.
  • an elastic buffer rubber stop is mounted on the lateral gear mounting seat of the vehicle body, and the vehicle body is mounted.
  • the traction retaining composite seat of the motor-mounted shaft-mounted permanent magnet direct-drive bogie of the present invention is provided with a traction stop composite seat, and the two ends of the longitudinal traction rod are respectively connected with the traction stop composite seat and the traction body, and the center of the traction body is installed.
  • the rubber sleeve adapts to the rotation of the frame relative to the rail vehicle.
  • the lower part of the center pin is installed in the rubber sleeve, and the upper part is fixed by the bolt body.
  • the double traction rod device is adapted to the frame relative to the vehicle by twisting and deflecting the elastic joints at both ends of the traction rod.
  • the traverse and vertical movement of the body makes the additional vertical and lateral stiffness of the second line smaller, improving the comfort of riding;
  • the motor-mounted shaft-mounted permanent magnet direct-drive bogie of the present invention further has two vertical dampers connected to the rail vehicle side frame and the rail vehicle body at both ends, and the connecting frame device and the traction center pin It is an air spring suspension device.
  • FIG. 1 is a front view showing the structure of a motor-mounted shaft-mounted permanent magnet direct drive bogie according to the present invention
  • FIG. 2 is a schematic top plan view of a motor-mounted shaft-mounted permanent magnet direct drive bogie according to the present invention
  • FIG. 3 is a left side structural view of a motor-mounted shaft-mounted permanent magnet direct drive bogie according to the present invention.
  • FIG. 5 is a three-dimensional structural diagram of a motor-mounted shaft-mounted permanent magnet direct drive bogie according to the present invention.
  • FIG. 6 is a schematic axial cross-sectional view of a permanent magnet synchronous motor according to the present invention.
  • FIG. 7 is a schematic structural view of a permanent magnet synchronous motor according to the present invention.
  • Figure 8 is a view taken along line A of Figure 7,
  • Figure 9 is a partial structural view of the bogie of the present invention.
  • Figure 10 is a schematic view showing the structure of the traction body of Figure 8.
  • Figure 11 is a schematic structural view of a secondary air spring suspension device of the present invention.
  • the present invention holds a shaft-mounted permanent magnet direct drive bogie for mounting under a rail vehicle for steering during traveling of a rail vehicle, each of which includes a frame device 1, two a permanent magnet synchronous traction motor 4, two triangular elastic support devices 5, two wheel alignment axle box devices 3, the two wheel alignment axle box devices 3 are arranged in a rectangular array below the rail vehicle, in the forward direction of the rail vehicle Two wheelset axlebox devices 3 adjacent to each other are connected by the frame device 1, and two wheelset axlebox devices 3 located on the left and right sides of the rail vehicle in the forward direction are connected and driven by the permanent magnet synchronous traction motor 4; permanent magnet synchronization
  • the traction motor 4 drives the wheel to advance the axle box device 3.
  • the two frame devices 1 are symmetrically located on the left and right sides of the traveling direction of the rail vehicle, and each of the frame devices 1 extends toward the center line position of the rail vehicle, and the two frame devices 1 pass through the center line position of the rail vehicle.
  • the traction rod device 8 is connected, the double traction rod device 8 is for connection to a rail vehicle; the double traction rod device 8 is connected to the frame device 1 at both sides of the rail vehicle.
  • the triangular elastic support device 5 connects the permanent magnet synchronous traction motor 4 and the double traction pull rod device 8.
  • the triangular elastic support device 5 not only functions as a connection but also functions as a buffer.
  • a rubber pile suspension device 2 is disposed between each of the wheelset axle box devices 3 and the corresponding frame device 1.
  • a series of rubber pile suspension devices 2 buffer the vibration of the rail vehicle in the vertical direction during walking.
  • a two-line air spring suspension device 6 is disposed above the center of each of the frame devices 1.
  • the second-line air spring suspension device 6 is used to buffer the vertical and horizontal sway during the running of the rail vehicle, and improve the stability of the rail vehicle during running.
  • Two tread brake devices 7 are provided on opposite sides of the two frame devices 1, and the two tread brake devices 7 of each frame device 1 are respectively used to connect the corresponding frame device 1 and are located in the frame The wheelset axle box device 3 at the front and rear ends of the device 1.
  • the two ends of the rotor 9 of the permanent magnet synchronous traction motor 4 are mounted on the axle 20 of the wheelset axle box device 3, and the axle 20 passes through the center of the permanent magnet synchronous traction motor 4; the permanent magnet synchronous traction motor 4
  • the tractor axle 20 rotates, which in turn drives the rail vehicle to travel.
  • the motor end cover 12 is mounted on the stator 10 side of the permanent magnet synchronous traction motor 4, and the motor end cover 12 is seated on the axle 20 through the cylindrical roller bearing 13 and the outer ring of the cylindrical roller bearing 13 is used.
  • the gland 15 and the bearing inner ring gland 14 are laterally fixed, and the bearing inner ring gland 14 is attached to the surface of the axle, and the bearing outer ring gland 15 is pressed around the bearing inner ring gland 14 and the cylindrical roller bearing
  • the inner side of the inner ring of one 13 is laterally blocked on the axle 20 through the inner ring 11 of the bearing, and the outer side of the inner ring of the cylindrical roller bearing 13 is laterally positioned by the outer ring of the bearing that is over-engaged on the axle 20;
  • the motor end cover 2 is mounted on the other side of the stator 10 of the motor 4.
  • the motor end cover 26 is seated on the axle 20 through the cylindrical roller bearing 2 36.
  • Four-point ball bearings are also mounted between the motor end cover 26 and the axle 20 .
  • the cylindrical roller bearing 2 36 is located between the stator 10 and the four-point ball bearing 19
  • the outer ring of the cylindrical roller bearing 2 36 and the four-point ball bearing 19 is separated by a spacer ring 17, a cylindrical roller bearing
  • the inner ring of the two 36 and four point ball bearings 19 are separated by spacers 18, cylindrical roller bearings
  • the outer ring of 36 is laterally fixed by a bearing outer ring gland 15 and a bearing inner ring gland 14, the bearing inner ring gland 14 is attached to the axle surface, and the bearing outer ring gland 15 is pressed against the bearing inner ring pressure.
  • the inner side of the inner ring of the cylindrical roller bearing 2 is laterally blocked on the axle 20 by the inner ring 24 of the bearing, and the outer side of the inner ring of the cylindrical roller bearing 36 is over-engaged on the axle 20 and passed through the limit.
  • the outer race of the bearing on the wheel 21 is laterally positioned.
  • Each of the surfaces of the stator 10 of each of the permanent magnet synchronous traction motors 4 is provided with a plurality of elastic node mounts 22, and the triangular elastic support device 5 has three elastic nodes 23, wherein the two elastic nodes 23 and the elastic node mounts 22 The other elastic node 23 is connected to the frame device 1, and a gap is left between the elastic node 23 and the triangular elastic supporting device 5 and the frame device 1, so that the longitudinal rigidity of the elastic node 23 is small.
  • the double traction rod device 8 is disposed at a front and a rear ends of the rail vehicle, and is provided with a plurality of center pins 25 for connecting the double traction rod device 8 to the underside of the rail vehicle, and the lower portion of the center pin 25 is mounted
  • the rubber sleeve 28, the rubber sleeve 28 is externally mounted with a traction body 26, the rubber sleeve 28 is passed through the center of the traction body 26, and the traction rods 27 are respectively mounted on both ends of the traction body 26, and the frame device 1 is provided with two traction Stopping composite seats 29, the ends of each of the traction links 27 are connected to corresponding traction stop composite seats 29, the two traction stop composite seats 29 Do not be located at both ends of the double traction rod device 8.
  • the secondary air spring suspension device 6 includes an air spring 30, a secondary rain damper 31, a secondary transverse damper 32, an overcharge resistant wire rope 33, and a transverse gear mount 34.
  • the air spring 30 falls on On the frame device 1, the secondary rain damper 31 and the two-stage lateral damper 32 are mounted on a pair of opposite sides of the air spring 30 for connecting the rail vehicle and the frame device 1, and the lateral gear mount 34 is disposed at two Between the transverse damper 32 and the air spring 30, for mounting on the rail vehicle and connecting the rail vehicle and the frame device 1, the side of the lateral gear mounting seat 34 facing the air spring 30 is provided with an elastic buffer rubber stop 35, transverse The stop mount 34 is also provided with an overfill resistant wire rope 33 which is located on the opposite side of the elastic cushion rubber stop 35.
  • a groove is provided in the middle of the axle 20 for releasing the bending deformation of the axle 20.
  • the motor-mounted shaft-mounted permanent magnet direct drive bogie of the invention adopts a permanent magnet synchronous traction motor 4, which eliminates the excitation energy of the rotor 9 and improves the efficiency of the motor, further improves the transmission efficiency after the gearbox device is omitted, and reduces the bogie
  • the wheelbase, its energy saving, environmental protection and small curve can be widely used in various types of urban rail transit vehicles through its strong ability.
  • the technical means disclosed in the solution of the present invention is not limited to the technical means disclosed by the above technical means, and includes a technical solution composed of any combination of the above technical features.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
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Abstract

一种电机抱轴安装式永磁直驱转向架,包括两个构架装置(1)、两个永磁同步牵引电机(4)、两个三角形弹性支撑装置(5)、四个轮对轴箱装置(3),前后相邻的两个轮对轴箱装置(3)通过构架装置(1)连接,左右对称两侧的两个车轮(21)用车轴(20)连接,永磁同步牵引电机(4)通过转子(9)与车轴(20)一体,通过转动车轴(20)实现驱动;两个构架装置(1)对称位于轨道车辆前进方向左右两侧,两个构架装置(1)通过双牵引拉杆装置(8)连接,三角形弹性支撑装置(5)连接永磁同步牵引电机(4)和双牵引拉杆装置(8)。电机抱轴安装式永磁直驱转向架采用永磁同步牵引电机,省去了转子励磁电能,提高了电机效率,省去齿轮箱装置后进一步提高传动效率,且缩小了转向架的轴距,可广泛应用于各型城市轨道交通车辆,具有节能、环保和小曲线通过能力强的优势。

Description

电机抱轴安装式永磁直驱转向架 技术领域
本发明涉及电机抱轴安装式永磁直驱转向架,属于轨道车辆转向架技术领域。
背景技术
在传统转向架的结构设计中,一般采用交流异步电机驱动,由于需要转子电励磁,电机效率不够高,能耗大,电机弹性安装或刚性安装在构架上,为了适应电机与轮对间的动态扰动及传递力矩需要设置复杂的连轴节和齿轮箱等机构,这种转向架结构复杂,齿轮箱联轴节的传动效率较低,并且该转向架的轮对轴距较大、重量大,使转向架的小曲线通过性能、节能性等性能指标难以显著提升。
发明内容
为了解决上述存在的问题,本发明公开了一种电机抱轴安装式永磁直驱转向架,其具体技术方案如下:
电机抱轴安装式永磁直驱转向架,该转向架用于安装在轨道车辆下方,用于轨道车辆行驶过程中转向,该转向架包括两个构架装置、两个永磁同步牵引电机、两个三角形弹性支撑装置、四个轮对轴箱装置,
所述四个轮对轴箱装置呈矩形阵列布置在轨道车辆下方,位于轨道车辆前进方向的前后相邻的两个轮对轴箱装置通过构架装置连接,位于轨道车辆前进方向左右对称两侧的两个车轮通过车轴左右连接,永磁同步电机驱动车轴,带动两个车轮转动来实现驱动;
所述两个构架装置对称位于轨道车辆前进方向左右两侧,所述每个构架装置中间均朝向轨道车辆的中心线位置延伸,两个构架装置通过在轨道车辆的中心线位置的双牵引拉杆装置连接,所述双牵引拉杆装置用于与轨道车辆连接;
所述三角形弹性支撑装置连接永磁同步牵引电机和双牵引拉杆装置。
所述每个轮对轴箱装置和对应的构架装置之间均设置有一系橡胶堆悬挂装置。
所述每个构架装置的中心上方均设置有二系空气弹簧悬挂装置。
所述两个构架装置的相向一侧均设置有两个踏面制动装置,所述每个构架装置的两个踏面制动装置分别用于连接对应的构架装置和位于该构架装置前后两端的轮对轴箱装置。
所述永磁同步牵引电机的转子过盈安装在轮对轴箱装置的车轴上,所述车轴从永磁同步牵引电机的中心穿过;
永磁同步牵引电机的定子一侧安装有电机端盖一,电机端盖一通过圆柱滚子轴承一坐落在车轴上,圆柱滚子轴承一的外圈用轴承外圈压盖和轴承内圈压盖进行横向固定,所述轴承内圈压盖贴合在车轴表面,所述轴承外圈压盖压在轴承内圈压盖四周,圆柱滚子轴承一的内圈内侧通过轴承内挡圈横向挡在车轴上,圆柱滚子轴承一的内圈外侧通过过盈在车轴上的轴承外挡圈进行横向定位;
永磁同步牵引电机的定子另一侧安装有电机端盖二,电机端盖二通过圆柱滚子轴承二 坐落在车轴上,电机端盖二与车轴间还安装有四点球轴承,该圆柱滚子轴承二位于定子与四点球轴承之间,圆柱滚子轴承二和四点球轴承的外圈之间用隔圈一隔开,圆柱滚子轴承二和四点球轴承的内圈之间用隔圈二隔开,圆柱滚子轴承二的外圈用轴承外圈压盖和轴承内圈压盖进行横向固定,所述轴承内圈压盖贴合在车轴表面,所述轴承外圈压盖压在轴承内圈压盖四周,圆柱滚子轴承二的内圈内侧通过轴承内挡圈横向挡在车轴上,圆柱滚子轴承二的内圈外侧通过过盈在车轴上,且通过限位在车轮上的轴承外挡圈进行横向定位。
所述每个永磁同步牵引电机的定子表面均设置有若干个弹性节点安装座,所述三角形弹性支撑装置有三个弹性节点,其中两个弹性节点与弹性节点安装座连接,另一个弹性节点与构架装置连接,所述该弹性节点与三角形弹性支撑装置和构架装置之间均留有间隙。
所述双牵引拉杆装置位于轨道车辆行驶的方向前后两端均设置有若干个中心销,所述中心销用于将双牵引拉杆装置连接到轨道车辆下方,中心销下部安装有橡胶套,橡胶套外部安装有牵引体,所述橡胶套从牵引体的中心穿过,牵引体的两端分别安装牵引拉杆,所述构架装置设置有两个牵引止挡复合座,所述每个牵引拉杆的末端均与对应的牵引止挡复合座连接,所述两个牵引止挡复合座分别位于双牵引拉杆装置的两端。
所述二系空气弹簧悬挂装置包括空气弹簧、二系垂向减振器、二系横向减振器、防过充钢丝绳和横向挡安装座,所述空气弹簧落于构架装置上,二系垂向减振器和二系横向减振器安装于空气弹簧的一组相对侧,用于连接轨道车辆与构架装置,横向挡安装座设置在二系横向减振器与空气弹簧之间,用于安装于轨道车辆上连接轨道车辆与构架装置,横向挡安装座朝向空气弹簧的一侧装有弹性缓冲橡胶止挡,横向挡安装座还设置有防过充钢丝绳,所述防过充钢丝绳位于弹性缓冲橡胶止挡的相对侧。
所述车轴中部设有凹槽。
本发明的有益效果是:
(1)、传统的转向架采用的驱动电机是异步电机,本发明采用永磁同步牵引电机,永磁同步电机转子采用永磁体结构,不需要耗电,相对于异步电机具有效率高,体积小,重量轻,节能环保的优点;
(2)、将传统的异步电机与齿轮箱联轴节配合使用的方式变为采用永磁同步牵引电机抱轴安装直接驱动,省去齿轮箱和联轴节的纵向空间,进一步提高效率,且同时能缩小转向架轴距,提升转向架的小曲线通过性能;
(3)、永磁同步牵引抱轴安装于轮对轴箱装置的车轴上,转子两端通过过盈压装在车车轴上,车轴中部设有凹槽,用来释放车轴的弯曲变形,定子通过左右两侧的两个圆柱滚子轴承支撑在车轴上,并通过两个圆柱滚子轴承承受垂向振动,通过右侧的四点球轴承进行横向定位和承受横向振动,电机定子外壳上下分别与三角形弹性支撑装置的上下两个弹性节点用螺栓紧固,并通过另一个纵向开槽的弹性节点支撑在构架装置上,通过三角形弹性支撑装置,增大平衡电机牵引制动力矩的力臂,减小构架的受力,同时该装置对一系橡胶堆悬挂装置附加横向和纵向定位刚度较小,保证转向架的小曲线通过性能;
(4)、本发明电机抱轴安装式永磁直驱转向架设有用于横向限位的二系空气弹簧悬挂装置,安装在车体的横向挡安装座上安装有弹性缓冲橡胶止挡,挡车体横向移动到极限位置时,一侧的弹性缓冲橡胶止挡顶住相应侧的牵引止挡复合座,使车体横向得到限位;
(5)、本发明电机抱轴安装式永磁直驱转向架的构架上设有牵引止挡复合座,纵向牵引拉杆两端分别与牵引止挡复合座和牵引体连接,牵引体中心安装有橡胶套,适应构架相对于轨道车辆的转动,中心销下部安装于橡胶套中,上部通过螺栓与车体固定,该双牵引拉杆装置通过牵引拉杆两端的弹性节点扭转和偏转来适应构架相对于车体的横移和垂向运动,使得二系附加的垂向和横向刚度较小,提高乘坐的舒适性;
(6)、本发明电机抱轴安装式永磁直驱转向架还具有两端分别连接轨道车辆侧架与轨道车辆车体二系竖直方向减振器,连接构架装置与牵引中心销的二系空气弹簧悬挂装置。
附图说明
图1为本发明电机抱轴安装式永磁直驱转向架的主视结构示意图,
图2为本发明电机抱轴安装式永磁直驱转向架的俯视结构示意图,
图3为本发明电机抱轴安装式永磁直驱转向架的左视结构示意图,
图4为本发明电机抱轴安装式永磁直驱转向架的仰视结构示意图,
图5为本发明电机抱轴安装式永磁直驱转向架的立体结构示意图,
图6为本发明永磁同步电机的轴向剖面示意图,
图7为本发明永磁同步电机的结构示意图,
图8是图7的A向视图,
图9为本发明转向架局部结构示意图,
图10为图8中的牵引体结构示意图,
图11是本发明的二系空气弹簧悬挂装置结构示意图,
附图标记列表:1—构架装置,2—一系橡胶堆悬挂装置,3—轮对轴箱装置,4—永磁同步牵引电机,5—三角形弹性支撑装置,6—二系空气弹簧悬挂装置,7—踏面制动装置,8—双牵引拉杆装置,9—转子,10—定子,11—轴承内挡圈,12—电机端盖一,13—圆柱滚子轴承一,14—轴承内圈压盖,15—轴承外圈压盖,16—电机端盖二,17—隔圈一,18—隔圈二,19—四点球轴承,20—车轴,21—车轮,22—弹性节点安装座,23—弹性节点,24—轴承内挡圈二,25—中心销,26—牵引体,27—牵引拉杆,28—橡胶套,29—牵引止挡复合座,30—空气弹簧,31—二系垂向减振器,32—二系横向减振器,33—防过充钢丝绳,34—横向挡安装座,35—弹性缓冲橡胶止挡,36—圆柱滚子轴承二。
具体实施方式
下面结合附图和具体实施方式,进一步阐明本发明。应理解下述具体实施方式仅用于说明本发明而不用于限制本发明的范围。
结合附图可见,本电机抱轴安装式永磁直驱转向架,该转向架用于安装在轨道车辆下方,用于轨道车辆行驶过程中转向,每个该转向架包括一个构架装置1、两个永磁同步牵引电机4、两个三角形弹性支撑装置5、两个轮对轴箱装置3,所述两个轮对轴箱装置3呈矩形阵列布置在轨道车辆下方,位于轨道车辆前进方向的前后相邻的两个轮对轴箱装置3通过构架装置1连接,位于轨道车辆前进方向左右对称两侧的两个轮对轴箱装置3通过永磁同步牵引电机4连接并驱动;永磁同步牵引电机4驱动轮对轴箱装置3前进。
所述两个构架装置1对称位于轨道车辆前进方向左右两侧,所述每个构架装置1中间均朝向轨道车辆的中心线位置延伸,两个构架装置1通过在轨道车辆的中心线位置的双牵引拉杆装置8连接,所述双牵引拉杆装置8用于与轨道车辆连接;双牵引拉杆装置8连接位于轨道车辆两侧的构架装置1。
所述三角形弹性支撑装置5连接永磁同步牵引电机4和双牵引拉杆装置8。三角形弹性支撑装置5不仅能起到连接的作用,而且能起到缓冲的作用。
所述每个轮对轴箱装置3和对应的构架装置1之间均设置有一系橡胶堆悬挂装置2。一系橡胶堆悬挂装置2缓冲轨道车辆在行走过程中垂直方向的震动。
所述每个构架装置1的中心上方均设置有二系空气弹簧悬挂装置6。二系空气弹簧悬挂装置6用于缓冲轨道车辆行驶过程中垂直方向和水平方向的晃动,提高轨道车辆行驶过程中的稳定性。
所述两个构架装置1的相向一侧均设置有两个踏面制动装置7,所述每个构架装置1的两个踏面制动装置7分别用于连接对应的构架装置1和位于该构架装置1前后两端的轮对轴箱装置3。
所述永磁同步牵引电机4的转子9两端过盈安装在轮对轴箱装置3的车轴20上,所述车轴20从永磁同步牵引电机4的中心穿过;永磁同步牵引电机4牵引车轴20旋转,进而带动轨道车辆行驶。
永磁同步牵引电机4的定子10一侧安装有电机端盖一12,电机端盖一12通过圆柱滚子轴承一13坐落在车轴20上,圆柱滚子轴承一13的外圈用轴承外圈压盖15和轴承内圈压盖14进行横向固定,所述轴承内圈压盖14贴合在车轴表面,所述轴承外圈压盖15压在轴承内圈压盖14四周,圆柱滚子轴承一13的内圈内侧通过轴承内挡圈一11横向挡在车轴20上,圆柱滚子轴承一13的内圈外侧通过过盈在车轴20上的轴承外挡圈进行横向定位;永磁同步牵引电机4的定子10另一侧安装有电机端盖二16,电机端盖二16通过圆柱滚子轴承二36坐落在车轴20上,电机端盖二16与车轴20间还安装有四点球轴承19,该圆柱滚子轴承二36位于定子10与四点球轴承19之间,圆柱滚子轴承二36和四点球轴承19的外圈之间用隔圈一17隔开,圆柱滚子轴承二36和四点球轴承19的内圈之间用隔圈二18隔开,圆柱滚子轴承二36的外圈用轴承外圈压盖15和轴承内圈压盖14进行横向固定,所述轴承内圈压盖14贴合在车轴表面,所述轴承外圈压盖15压在轴承内圈压盖14四周,圆柱滚子轴承二36的内圈内侧通过轴承内挡圈二24横向挡在车轴20上,圆柱滚子轴承二36的内圈外侧通过过盈在车轴20上,且通过限位在车轮21上的轴承外挡圈进行横向定位。
所述每个永磁同步牵引电机4的定子10表面均设置有若干个弹性节点安装座22,所述三角形弹性支撑装置5有三个弹性节点23,其中两个弹性节点23与弹性节点安装座22连接,另一个弹性节点23与构架装置1连接,所述该弹性节点23与三角形弹性支撑装置5和构架装置1之间均留有间隙,使得该弹性节点23的纵向刚度较小。
所述双牵引拉杆装置8位于轨道车辆行驶的方向前后两端均设置有若干个中心销25,所述中心销25用于将双牵引拉杆装置8连接到轨道车辆下方,中心销25下部安装有橡胶套28,橡胶套28外部安装有牵引体26,所述橡胶套28从牵引体26的中心穿过,牵引体26的两端分别安装牵引拉杆27,所述构架装置1设置有两个牵引止挡复合座29,所述每个牵引拉杆27的末端均与对应的牵引止挡复合座29连接,所述两个牵引止挡复合座29分 别位于双牵引拉杆装置8的两端。
所述二系空气弹簧悬挂装置6包括空气弹簧30、二系垂向减振器31、二系横向减振器32、防过充钢丝绳33和横向挡安装座34,所述空气弹簧30落于构架装置1上,二系垂向减振器31和二系横向减振器32安装于空气弹簧30的一组相对侧,用于连接轨道车辆与构架装置1,横向挡安装座34设置在二系横向减振器32与空气弹簧30之间,用于安装于轨道车辆上连接轨道车辆与构架装置1,横向挡安装座34朝向空气弹簧30的一侧装有弹性缓冲橡胶止挡35,横向挡安装座34还设置有防过充钢丝绳33,所述防过充钢丝绳33位于弹性缓冲橡胶止挡35的相对侧。
车轴20中部设有凹槽,用来释放车轴20的弯曲变形。
本发明电机抱轴安装式永磁直驱转向架采用永磁同步牵引电机4,省去了转子9励磁电能,提高了电机效率,省去齿轮箱装置后进一步提高传动效率,且缩小了转向架的轴距,其节能、环保和小曲线通过能能力强的优势可广泛应用于各型城市轨道交通车辆。
本发明方案所公开的技术手段不仅限于上述技术手段所公开的技术手段,还包括由以上技术特征任意组合所组成的技术方案。
以上述依据本发明的理想实施例为启示,通过上述的说明内容,相关工作人员完全可以在不偏离本项发明技术思想的范围内,进行多样的变更以及修改。本项发明的技术性范围并不局限于说明书上的内容,必须要根据权利要求范围来确定其技术性范围。

Claims (9)

  1. 电机抱轴安装式永磁直驱转向架,该转向架用于安装在轨道车辆下方,用于轨道车辆行驶过程中转向并承载车体重量,传递牵引和制动力,衰减振动,其特征是每台转向架包括一个构架装置、两个永磁同步牵引电机、两个三角形弹性支撑装置、两个轮对轴箱装置,
    所述四个轮对轴箱装置呈矩形阵列布置在轨道车辆下方,位于轨道车辆前进方向的前后相邻的两个轮对轴箱装置通过构架装置连接,位于轨道车辆前进方向左右对称两侧的车轮通过车轴左右连接,永磁同步电机驱动车轴,带动两个车轮转动来实现驱动;
    所述两个构架装置对称位于轨道车辆前进方向左右两侧,所述每个构架装置中间均朝向轨道车辆的中心线位置延伸,两个构架装置通过在轨道车辆的中心线位置的双牵引拉杆装置连接,所述双牵引拉杆装置用于与轨道车辆连接;
    所述三角形弹性支撑装置连接永磁同步牵引电机和构架装置,双牵引拉杆装置连接构架装置和车体。
  2. 根据权利要求1所述的电机抱轴安装式永磁直驱转向架,其特征是所述每个轮对轴箱装置和对应的构架装置之间均设置有一系橡胶堆悬挂装置。
  3. 根据权利要求2所述的电机抱轴安装式永磁直驱转向架,其特征是所述每个构架装置的中心上方均设置有二系空气弹簧悬挂装置。
  4. 根据权利要求3所述的电机抱轴安装式永磁直驱转向架,其特征是所述两个构架装置的相向一侧均设置有两个踏面制动装置,所述每个构架装置的两个踏面制动装置安装于构架装置侧梁和并通过闸瓦对车轮踏面施加制动力。
  5. 根据权利要求4所述的电机抱轴安装式永磁直驱转向架,其特征是所述永磁同步牵引电机的转子过盈安装在轮对轴箱装置的车轴上,所述车轴从永磁同步牵引电机的中心穿过;
    永磁同步牵引电机的定子一侧安装有电机端盖一,电机端盖一通过圆柱滚子轴承一坐落在车轴上,圆柱滚子轴承一的外圈用轴承外圈压盖和轴承内圈压盖进行横向固定,所述轴承内圈压盖贴合在车轴表面,所述轴承外圈压盖压在轴承内圈压盖四周,圆柱滚子轴承一的内圈内侧通过轴承内挡圈一横向挡在车轴上,圆柱滚子轴承一的内圈外侧通过过盈在车轴上的轴承外挡圈进行横向定位;
    永磁同步牵引电机的定子另一侧安装有电机端盖二,电机端盖二通过圆柱滚子轴承二坐落在车轴上,电机端盖二与车轴间还安装有四点球轴承,该圆柱滚子轴承二位于定子与四点球轴承之间,圆柱滚子轴承二和四点球轴承的外圈之间用隔圈一隔开,圆柱滚子轴承二和四点球轴承的内圈之间用隔圈二隔开,圆柱滚子轴承二的外圈用轴承外圈压盖和轴承内圈压盖进行横向固定,所述轴承内圈压盖贴合在车轴表面,所述轴承外圈压盖压在轴承内圈压盖四周,圆柱滚子轴承二的内圈内侧通过轴承内挡圈二横向挡在车轴上,圆柱滚子轴承二的内圈外侧通过过盈在车轴上,且通过限位在车轮上的轴承外挡圈进行横向定位。
  6. 根据权利要求5所述的电机抱轴安装式永磁直驱转向架,其特征是所述每个永磁同步牵引电机的定子表面均设置有若干个弹性节点安装座,所述三角形弹性支撑装置有三个弹性节点,其中两个弹性节点与弹性节点安装座连接,另一个弹性节点与构架装置连接,所述该弹性节点与三角形弹性支撑装置和构架装置之间在车辆前进方向均留有间隙。
  7. 根据权利要求6所述的电机抱轴安装式永磁直驱转向架,其特征是所述双牵引拉杆装置位于轨道车辆行驶的方向前后两端均设置有若干个中心销,所述中心销用于将双牵引 拉杆装置连接到轨道车辆下方,中心销下部安装有橡胶套,橡胶套外部安装有牵引体,所述橡胶套从牵引体的中心穿过,牵引体的两端分别安装牵引拉杆,所述构架装置设置有两个牵引止挡复合座,所述每个牵引拉杆的末端均与对应的牵引止挡复合座连接,所述两个牵引止挡复合座分别位于双牵引拉杆装置的两端。
  8. 根据权利要求7所述的电机抱轴安装式永磁直驱转向架,其特征是所述二系空气弹簧悬挂装置包括空气弹簧、二系垂向减振器、二系横向减振器、防过充钢丝绳和横向挡安装座,所述空气弹簧落于构架装置上,二系垂向减振器和二系横向减振器安装于空气弹簧的一组相对侧,用于连接轨道车辆与构架装置,横向挡安装座设置在二系横向减振器与空气弹簧之间,用于安装于轨道车辆上连接轨道车辆与构架装置,横向挡安装座朝向空气弹簧的一侧装有弹性缓冲橡胶止挡,横向挡安装座还设置有防过充钢丝绳,所述防过充钢丝绳位于弹性缓冲橡胶止挡的相对侧。
  9. 根据权利要求8所述的电机抱轴安装式永磁直驱转向架,其特征是所述车轴中部设有凹槽。
PCT/CN2016/090031 2015-09-22 2016-07-14 电机抱轴安装式永磁直驱转向架 WO2017049995A1 (zh)

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