WO2015158145A1 - 一种货运电力机车用Bo转向架 - Google Patents

一种货运电力机车用Bo转向架 Download PDF

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Publication number
WO2015158145A1
WO2015158145A1 PCT/CN2014/093558 CN2014093558W WO2015158145A1 WO 2015158145 A1 WO2015158145 A1 WO 2015158145A1 CN 2014093558 W CN2014093558 W CN 2014093558W WO 2015158145 A1 WO2015158145 A1 WO 2015158145A1
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WO
WIPO (PCT)
Prior art keywords
frame
bogie
electric locomotive
drawbar
freight electric
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PCT/CN2014/093558
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English (en)
French (fr)
Inventor
陈喜红
李冠军
邹文辉
陈晓峰
晋军辉
王德新
周立秋
张又孔
祝贺
侯耐
王志明
易幕霞
高升辉
孔媛媛
贺兴
李小燕
聂霁
Original Assignee
南车株洲电力机车有限公司
Priority date (The priority date 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 date listed.)
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Publication date
Priority claimed from CN201420184556.6U external-priority patent/CN203888817U/zh
Priority claimed from CN201410153010.9A external-priority patent/CN103895665A/zh
Application filed by 南车株洲电力机车有限公司 filed Critical 南车株洲电力机车有限公司
Priority to AU2014390807A priority Critical patent/AU2014390807A1/en
Publication of WO2015158145A1 publication Critical patent/WO2015158145A1/zh

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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

Definitions

  • the invention relates to the technical field of rail vehicle bogies, in particular to a Bo bogie for freight electric locomotives.
  • the vehicle bogie is a key component of the whole vehicle of the rail vehicle. It undertakes the task of carrying the weight of each part above the frame and ensuring the smooth passage of the vehicle.
  • the bo bogie refers to the steering of the bogie including two wheels driven by the motor. frame.
  • the Bo bogie generally includes a frame, a wheelset, an axlebox assembly, a drive system, a series of suspensions and a secondary suspension.
  • the frame is supported by two wheel sets, and the frame is provided with mounting parts of various components, and the drive system is installed. It is used to drive the entire Bo bogie movement on the frame.
  • the axle box assembly is installed at both ends of the wheel pair to provide stable and reliable support to the wheel pair and realize the translation from the rotation of the motor to the bogie.
  • the second suspension are used to cushion the vibration of the frame and the car body.
  • the opposite side of the rail is also provided with a derailment protection strip across the rail, and the distance between the derailment strip and the ground is less than the distance between the wheelset drive system and the ground.
  • the four corner portions of the frame are respectively provided with a derailing protection strip mounting seat extending from the frame to the ground direction, and the derailing protection strip includes two and two The derailing protection strips are perpendicular to the extending direction of the rails, and the two ends of each of the derailing strips are respectively fixedly connected with the two derailing strip mountings.
  • the suspension system of the Bo bogie includes a spring, a vertical damper and one end connected to the axle box of the Bo bogie, and the other end
  • the shafts of the two wheel sets are provided with a hoop box body, and the drive system in the Bo bogie includes:
  • a traction motor coupled to the gear transmission pair and having one end connected to the frame and the other end connected to the axle housing.
  • the traction motor is an AC motor, and the traction motor is suspended from the frame by an elastic hanger.
  • the utility model further includes a safety pallet disposed on the frame, the safety pallet is disposed perpendicular to the elastic boom, and the safety pallet is adjacent to the bogie One end of the traction motor extends into the anti-drop groove provided on the traction motor.
  • the traction device of the Bo bogie includes a first drawbar and a second drawbar, and the first drawbar and the second drawbar are disposed between There is an intermediate connecting member, the first drawbar and the second drawbar are respectively hinged with the intermediate joint through a first pin and a second pin, and the end of the first drawbar is provided for use with the vehicle body Connected car a body connecting seat, the end of the second drawbar is provided with a first frame connecting seat for connecting with the frame, and the intermediate connecting piece is further provided with a second frame connecting seat for connecting with the frame .
  • the frame is a "Japanese" frame, and the frame includes two longitudinal beams that are consistent with the direction in which the rail extends and three beams perpendicular to the longitudinal beam.
  • the beams respectively include a middle cross member at the middle and an end cross member at both ends, the first frame connecting seat for connecting with the middle cross member of the frame, and the second frame connecting seat for the frame One of the end beams is connected.
  • the intermediate connecting member is provided with two second frame connecting seats independent of each other, and the two second frame connecting seats are respectively disposed in the middle
  • the connecting members are taken out at the same position and are separated on the two support rods in the axial direction of the first pin shaft.
  • the axle box bearing of the Bo bogie is a tapered roller bearing.
  • the Bo bogie for freight electric locomotive disclosed by the present invention comprises a frame, two wheel sets and two sets of wheelset drive systems for driving the wheel sets, and the Bo bogie frame is used for A derailment protection strip across the rail is also provided on the side opposite the rail, and the distance between the derailment strip and the ground is less than the distance between the wheel drive system and the ground.
  • the derailment protection strip is disposed on the side of the frame for the opposite side of the rail, and the derailment strip spans the rail, and the distance between the derailment strip and the ground is less than the distance between the wheel drive system and the ground, once If the locomotive derailment accident occurs, the derailment protection strip will ride on the rail surface of the rail, and since the drive system is higher than the derailment protection strip, this avoids the gearbox and the motor and other key components in the drive system from contacting the rail. Therefore, when the derailment accident occurs, the key components such as the gear box and the motor in the drive system are effectively protected.
  • FIG. 1 is a front view of a Bo bogie for a freight electric locomotive according to an embodiment of the present invention
  • Figure 2 is a top plan view of Figure 1;
  • FIG. 3 is a schematic view showing a mounting structure of a derailment protection strip according to an embodiment of the present invention.
  • FIG. 4 is a schematic view showing a mounting structure of a derailment protection strip mounting seat provided in an embodiment of the present invention
  • FIG. 5 is a partial structural diagram of a suspension system of a Bo bogie for a freight electric locomotive according to an embodiment of the present invention
  • Figure 6 is a schematic view showing the installation of the axle box tie rod of Figure 5;
  • FIG. 7 is a schematic structural diagram of a driving system according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a suspension structure of a traction motor according to an embodiment of the present invention.
  • Figure 9 is a view in the direction of B-B in Figure 8.
  • Figure 10 is a front elevational view showing the traction device provided in the embodiment of the present invention.
  • Figure 11 is a top plan view of the traction device provided in Figure 10;
  • Figure 12 is a cross-sectional view showing the axle box provided in the embodiment of the present invention.
  • FIG. 13 is a top plan view of a frame in a Bo bogie for a freight electric locomotive according to the present invention.
  • 1 is the car body connecting seat
  • 2 is the first drawbar
  • 3 is the sanding device
  • 4 is the rim lubrication system
  • 5 is a series of vertical shock absorbers
  • 6-1 is the first wheel pair
  • 6-2 is The second round pair
  • 7 is a series of springs
  • 8 is a two-series spring
  • 9 is a two-series vertical shock absorber
  • 10 is a frame
  • 11 is a basic brake device
  • 12 is an axle box
  • 13 is a second-line lateral shock absorption.
  • 14 is the drive system
  • 15 is the drive motor
  • 16 is the motor suspension device
  • 17 is the gear box
  • 18 is the derailment protection strip mount
  • 19 is the derailment protection strip
  • 20 is the protection strip safety rope
  • 21 is the rail surface
  • 23 is the first bearing
  • 24 is the second bearing
  • 25 is the axle housing
  • 26 is the gear hub
  • 27 is the ring gear
  • 28 is the pinion
  • 29 is the elastic boom
  • 30 is the safety Pallet
  • 30-1 is the left second frame connecting seat
  • 30-2 is the right second frame connecting seat
  • 31 is the intermediate connecting piece
  • 32 is the second drawbar
  • 33 is the drawbar safety rope
  • 34 is the shaft
  • the box end cover, 35 is the axle box bearing.
  • a Bo bogie for a freight electric locomotive (hereinafter referred to as a Bo bogie) provided in the embodiment of the present invention includes a frame 10, two wheel sets, and two sets for driving the wheel sets.
  • Drive system 14 the two wheel pairs are a first wheel pair 6-1 and a second wheel pair 6-2, respectively.
  • the Bo bogie includes a base braking device 11 for braking the wheel pair
  • the Bo bogie frame provided in the embodiment of the present invention is provided with a derailment protection strip 19 across the rail on the side opposite to the rail, and the derailment protection strip 19 and the ground The distance between them is less than the distance between the drive system 14 of the wheelset and the ground.
  • the derailment protection strip 19 is disposed on the side of the frame 10 opposite to the rail, and the derailment strip 19 spans the rail, and the distance between the derailment strip 19 and the ground is less than the drive system 14 of the wheelset and the ground The distance between them, so once the locomotive derailment accident occurs, the derailment protection strip 19 will ride over the rail surface of the rail, and since the drive system 14 is higher than the derailment strip 19, this avoids the gears in the drive system 14.
  • the key components such as the box 17 and the drive motor 15 are in contact with the rails, thereby effectively protecting key components such as the gearbox 17 and the drive motor 15 in the drive system 14 when a derailment accident occurs.
  • the strength of the derailment protection strip 19 should be sufficient to support the weight of the Bo bogie and the locomotive disposed at its upper portion to prevent the Bo bogie and the locomotive at its upper portion from crushing the derailment protection strip 19.
  • the derailment protection strip 19 can be provided in various forms as long as it can be traversed the rail and its distance from the ground is smaller than the distance between the drive system 14 and the ground, and the derailment protection is provided.
  • the number of the strips 19 is also not limited.
  • a specific form of the derailment protection strip 19 is provided. As shown in FIG. 3 and FIG. 4, the four corner portions of the frame 10 are respectively provided with a frame 10 direction.
  • the derailing protection strip mounting seat 18 extends in the ground direction, and the derailing protection strips 19 are specifically two.
  • the two derailing protection strips 19 are perpendicular to the extending direction of the rails, and the two ends of each derailing protection strip 19 are respectively derailed and protected.
  • the strip mounting seat 18 is fixedly connected. As shown in FIG. 2, for the convenience of setting, the sanding device 3 and the stone sweeping device are also disposed on the derailing protection strip mounting seat 18 in the embodiment, as shown in FIG.
  • the sanding tube of the sanding device 3 is aligned with the treads of the first wheel pair 6-1 and the second wheel pair 6-2.
  • the connection between the derailment protection strip 19 and the derailment protection strip mount 18 may be loose or even fail, which may cause the derailment protection strip 19 to accidentally fall off, once the derailment protection strip 19 accidentally falls off.
  • a protective strip safety cord 20 for preventing the off-track protection strip 19 from accidentally falling off, and a protective strip safety cord 20 are also provided.
  • the end is fixed on the derailing protection strip 19, and the other end is fixedly disposed on the derailing protection strip mounting seat 18, as shown in FIG.
  • a suspension system for a Bo bogie for a freight electric locomotive provided in the embodiment of the present invention includes a series of springs 7, a vertical damper 5, and one end connected to the axle box 12 of the Bo bogie, and the other end and the frame 10 connected axle box pull rods 22, as shown in Fig. 5, a series of springs 7 are mounted on both sides of the axle box 12, and one end of the spring 7 is connected to the axle box 12, and the other end is connected to the frame 10, the frame 10 Supported on a series of springs 7, a vertical damper 5 is used to counteract the large rebound of the spring 10 by the series of springs 7, which is installed between the axle box 12 and the frame 10, and is vertically damped.
  • the device 5 is matched with a series of springs 7 for buffering the vertical vibration of the frame 10.
  • the axle box pull rod 22 in this embodiment is a triangular axle box pull rod, as shown in FIG. 6, and the triangle One corner of the axle box tie rod is connected to the axle box 12, and the other two corners are respectively connected to the frame 10.
  • the triangular axle box pull rod longitudinally connects the axle box 12 and the frame 10 to transmit the traction and braking force of the wheel pair, and in the case of a small suspension stiffness, the axle box tie rod 22 also bears a line for the Bo bogie.
  • the suspension system of the series also includes a series of adjusting washers, and a series of adjusting washers are used to adjust the working height of the springs 7 of the series to realize the adjustment of the axle weight of the locomotive.
  • a shaft housing 25 is disposed on the shafts of the two wheel pairs in the Bo bogie provided in the embodiment of the present invention, and the axle housing 25 is mounted on the wheel pair through the first bearing 23 and the second bearing 24 On the shaft, as shown in FIG. 7, and the drive system in the Bo bogie includes a gear drive pair and a traction motor 15 in the gearbox 17, wherein the gear drive pair is used to transmit power to the wheelset, the traction motor 15 One end is connected to the frame 10, and the other end is connected to the hoop box body 25 disposed on the wheel pair, wherein the motor shaft of the traction motor 15 and the pinion gear 28 in the gear box 17 are connected by an inner cone type interference fit, and the pinion gear 28 is provided as a cantilever bearing structure, the large gear in the gear box 17 is composed of a ring gear 27 and a gear hub 26, and the gear hub 26 is fixedly mounted on the axle of the wheel pair by an interference fit, and the ring gear 27 is fixed by bolts. On the gear hub 26.
  • a high-power AC motor is used as the traction motor.
  • one end of the traction motor 15 is supported by the wheelset through the axle housing 25.
  • the other end is suspended from the frame 10 by an elastic hanger 29, and And elastic rubber joints are installed at both ends of the elastic hanger 29, so as to reduce the impact of the traction motor 15 on the bogie when vibrating, as shown in FIG. 8 and FIG. 9, in order to further optimize the scheme, the elastic suspension is prevented.
  • the rod 29 fails, the locomotive rolls over.
  • the frame 10 is also provided with a safety plate 30.
  • the safety plate 30 is disposed perpendicular to the elastic hanger 29, and the end of the safety plate 30 near the traction motor 15 extends into the traction.
  • gear box 17 One end of the gear box 17 is fixedly connected to the axle housing 25, and the other end is fixedly connected to the traction motor 15, and preferably, the gearbox 17 is a split structure, and the gearbox 17 is a flange welded gearbox to improve the gear
  • the sealing performance of the box 17 avoids the occurrence of oil leakage problems
  • the gear box 17 is lubricated by oil lubrication
  • the second holding bearing 24 is lubricated by means of grease lubrication, in order to prevent the lubricating oil in the gear box 17 from entering the shaft housing
  • a seal oil return structure is designed between the gear case 17 and the second bearing 24.
  • the traction device of the Bo bogie specifically includes a first drawbar 2 and a second drawbar 32 and is disposed between the first drawbar 2 and the second drawbar 32.
  • Figure 10 As shown in Figure 10.
  • the present embodiment further includes a drawbar safety rope 33.
  • One end of the drawbar safety rope 33 is fixedly connected to the second drawbar 32, and the other end is used for fixed connection with the frame 10, as shown in FIG.
  • the arrangement of the drawbar safety rope 33 can effectively prevent the drawbar from falling off.
  • the vehicle body connecting seat 1 and the first drawbar 2 are connected by a rubber joint so as to allow a small amount of relative movement of the vehicle body relative to the first drawbar 2 and buffer the impact of the vehicle body on the bogie.
  • the frame 10 provided in the embodiment of the present invention is specifically a "Japanese" frame, which includes two longitudinal beams that are consistent with the direction in which the rails extend and three beams that are perpendicular to the longitudinal beams, and three
  • the beam includes a middle beam in the middle of the frame 10 and two end beams at the ends of the frame 10.
  • Each beam body is welded by a steel plate, and the first frame connection seat in the traction device is used for the middle beam of the frame.
  • the second component connector is connected to one of the end beams of the frame.
  • the intermediate connecting member 31 in this embodiment is a triangular connecting member.
  • the intermediate connecting member is provided with two second frame connecting seats independently of each other, which are respectively connected to the left second frame.
  • the seat 30-1 and the right second frame connecting seat 30-2, and the two second frame connecting seats are respectively disposed at two positions which are taken out from the same position by the intermediate connecting member 31 and are separated in the axial direction of the first pin shaft. On the pole.
  • the axle box bearing 35 of the Bo bogie for the freight electric locomotive provided by the present invention adopts a sealed integral tapered roller bearing, and the axle housing is mounted on the wheelset shaft through the tapered roller bearing.
  • the axle box end cover 34 is also provided at the end of the axle box 12 in this embodiment.
  • the basic brake device 11 for the bogie for a freight electric locomotive provided in the embodiment of the present invention includes four in total, corresponding to four of the two wheel sets, and the base brake 11 on one of the wheel sets
  • the base brake device 11 on the other wheelset is the basic brake device without the accumulator brake
  • the four basic brake devices 11 are all mounted on the middle cross member of the frame 10. position.
  • the secondary suspension system of the Bo bogie for the freight electric locomotive includes a secondary spring 8, a secondary rain damper 9 and a secondary transverse damper 13, and the secondary spring 8 comprises four, close to the longitudinal beam.
  • Two sides are provided on each side, and the second spring 8 is mounted on the frame 10 at one end, and the other end is connected to the vehicle body.
  • One end of the second vertical damper 9 is connected to the frame 10, and the other end is used.
  • the second-line lateral damper 13 is disposed on the frame 10 for buffering the lateral vibration of the vehicle body
  • the secondary spring 8 is disposed at a position close to the middle beam by using a high-flexion coil spring, thereby allowing the locomotive to pass.
  • the deflection of the spring is small when cornering, thereby improving the stress of the spring.
  • the shaft temperature alarm device, the rim lubrication system 4 and the stone shovel are also arranged on the Bo bogie in this embodiment, so as to facilitate the wheel pair and the bearing of the Bo bogie. Parts are protected.

Abstract

一种货运电力机车用Bo转向架，包括构架（10）、两个轮对以及用于对所述轮对进行驱动的两套轮对驱动系统（14），所述构架用于与铁轨相对的一面上还设置有横跨铁轨的脱轨保护条（19），且所述脱轨保护条与地面之间的距离要小于所述轮对驱动系统与地面之间的距离。一旦机车发生脱轨事故，那么脱轨保护条将骑在铁轨的轨面上，而由于驱动系统要高于脱轨保护条，因此这就避免了驱动系统中的齿轮箱以及电机等关键部件与铁轨进行接触，从而在脱轨事故发生时，有效保护了驱动系统中的齿轮箱和驱动电机等关键部件。

Description

一种货运电力机车用Bo转向架
本申请要求于2014年04月16日提交中国专利局、申请号为201410153010.9、发明名称为“一种货运电力机车用Bo转向架”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
本申请要求于2014年04月16日提交中国专利局、申请号为201420184556.6、发明名称为“一种货运电力机车用Bo转向架”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及轨道车辆转向架技术领域，尤其涉及一种货运电力机车用Bo转向架。
背景技术
车辆转向架作为轨道车辆整车的一个关键部件，其承担着承载车架以上各部分重量、保证车辆顺利通过曲线的任务，Bo转向架是指转向架中包括两个由电机驱动轮对的转向架。
Bo转向架中一般包括构架、轮对、轴箱组装、驱动系统、一系悬挂和二系悬挂，其中构架由两个轮对支撑，并且构架上设置有各种部件的安装座，驱动系统安装在构架上用于驱动整个Bo转向架运动，轴箱组装安装在轮对的两端，用于对轮对提供稳定可靠的支撑并实现由电机的转动变成转向架的平动，一系悬挂和二系悬挂分别用于缓冲构架和车体的震动。
驱动系统中的齿轮箱和驱动电机在安装完成之后，距离铁轨的距离较小，因而这种Bo转向架存在着以下弊端：
一旦机车脱出轨道，那么Bo转向架中位置较低的齿轮箱以及驱动电机等关键部件容易骑在铁轨上，此时整个机车的重量将会压在齿轮箱以及驱动电机上，这会导致齿轮箱和驱动电机完全不可重新修复使用，只能完全更换。
因此，如何能够在货运电力机车脱轨时仍然能够实现对转向架中的齿轮箱和电机等关键部件的保护，是目前本领域技术人员亟需解决的技术问题。
发明内容
本发明的目的是提供一种货运电力机车用Bo转向架，以便能够在货运电力机车脱轨的情况下仍然能够对转向架中的齿轮箱和电机等关键部件进行保护。
为解决上述现有技术问题，本发明提供的货运电力机车用Bo转向架包括构架、两个轮对以及用于对所述轮对进行驱动的两套轮对驱动系统，所述构架用于与铁轨相对的一面上还设置有横跨铁轨的脱轨保护条，且所述脱轨保护条与地面之间的距离要小于所述轮对驱动系统与地面之间的距离。
优选的，在上述货运电力机车用Bo转向架中，所述构架的四角部分分别设置有一根由所述构架向地面方向延伸的脱轨保护条安装座，所述脱轨保护条包括两根，且两根所述脱轨保护条均与铁轨的延伸方向垂直，每根所述脱轨保护条的两端分别与两根脱轨保护条安装座固定连接。
优选的，在上述货运电力机车用Bo转向架中，所述Bo转向架中的一系悬挂系统包括一系弹簧、一系垂向减震器以及一端与Bo转向架的轴箱相连，另一端与构架相连的轴箱拉杆，且所述轴箱拉杆为三角式轴箱拉杆，所述三角式轴箱拉杆的一个角与所述轴箱连接，另外两个角分别与所述构架连接。
优选的，在上述货运电力机车用Bo转向架中，两个所述轮对的轴上均设置有抱轴箱体，且所述Bo转向架中的驱动系统包括：
用于向所述轮对传递动力的齿轮传动副；
与所述齿轮传动副配合且一端与所述构架相连，另一端与所述抱轴箱体相连的牵引电机。
优选的，在上述货运电力机车用Bo转向架中，所述牵引电机为交流电机，且所述牵引电机通过弹性吊杆与所述构架悬挂连接。
优选的，在上述货运电力机车用Bo转向架中，还包括设置于所述构架上的安全托板，所述安全托板与所述弹性吊杆垂直设置，且所述安全托板靠近所述牵引电机的一端伸入到所述牵引电机上设置的防脱槽中。
优选的，在上述货运电力机车用Bo转向架中，所述Bo转向架的牵引装置包括第一牵引杆和第二牵引杆，并且所述第一牵引杆和所述第二牵引杆之间设置有中间连接件，所述第一牵引杆和第二牵引杆分别通过第一销轴和第二销轴与所述中间连接件铰接，所述第一牵引杆的端部设置有用于与车体相连的车 体连接座，所述第二牵引杆的端部设置有用于与所述构架相连的第一构架连接座，且所述中间连接件上还设置有用于与所述构架相连的第二构架连接座。
优选的，在上述货运电力机车用Bo转向架中，所述构架为“日”字型构架，且所述构架包括两根与铁轨延伸方向一致的纵梁和三根与所述纵梁垂直的横梁，所述横梁分别包括位于中间的中部横梁和位于两端的端部横梁，所述第一构架连接座用于与所述构架的中部横梁连接，所述第二构架连接座用于与所述构架的其中一个端部横梁连接。
优选的，在上述货运电力机车用Bo转向架中，所述中间连接件上设置有相互独立的两个第二构架连接座，且两个所述第二构架连接座分别设置于由所述中间连接件同一位置引出并且沿所述第一销轴的轴线方向分开的两个支撑杆上。
优选的，在上述货运电力机车用Bo转向架中，所述Bo转向架的轴箱轴承为圆锥滚子轴承。
由以上技术方案可以看出，本发明所公开的货运电力机车用Bo转向架包括构架、两个轮对和用于对轮对进行驱动的两套轮对驱动系统，该Bo转向架的构架用于与铁轨相对的一面上还设置有横跨铁轨的脱轨保护条，并且脱轨保护条与地面之间的距离要小于轮对驱动系统与地面之间的距离。
由于在构架用于与铁轨相对的一面上设置了脱轨保护条，并且该脱轨保护条横跨铁轨，且脱轨保护条与地面之间的距离小于轮对驱动系统与地面之间的距离，因此一旦机车发生脱轨事故，那么脱轨保护条将骑在铁轨的轨面上，而由于驱动系统要高于脱轨保护条，因此这就避免了驱动系统中的齿轮箱以及电机等关键部件与铁轨进行接触，从而在脱轨事故发生时，有效保护了驱动系统中的齿轮箱和电机等关键部件。
附图说明
图1为本发明实施例所提供的货运电力机车用Bo转向架主视示意图；
图2为图1的俯视示意图；
图3为本发明实施例所提供的脱轨保护条的安装结构示意图；
图4为本发明实施例中所提供的脱轨保护条安装座的安装结构示意图；
图5为本发明实施例所提供的货运电力机车用Bo转向架中一系悬挂系统的部分结构示意图；
图6为图5中轴箱拉杆的安装示意图；
图7为本发明实施例所提供的驱动系统的结构示意图；
图8为本发明实施例所提供的牵引电机的悬挂结构示意图；
图9为图8中B-B方向的视图；
图10为本发明实施例中所提供的牵引装置的主视示意图；
图11为图10中所提供的牵引装置的俯视示意图；
图12为本发明实施例中所提供的轴箱的剖视示意图；
图13为本发明所提供的货运电力机车用Bo转向架中构架的俯视示意图。
标号说明：
1为车体连接座，2为第一牵引杆，3为撒砂装置，4为轮缘润滑系统，5为一系垂向减震器，6-1为第一轮对，6-2为第二轮对，7为一系弹簧，8为二系弹簧，9为二系垂向减震器，10为构架，11为基础制动装置，12为轴箱，13为二系横向减震器，14为驱动系统，15为驱动电机，16为电机悬挂装置，17为齿轮箱，18为脱轨保护条安装座，19为脱轨保护条，20为保护条安全绳，21为轨面，22为轴箱拉杆，23为第一抱轴承，24为第二抱轴承，25为抱轴箱体，26为齿轮毂，27为齿圈，28为小齿轮，29为弹性吊杆，30为安全托板，30-1为左侧第二构架连接座，30-2为右侧第二构架连接座，31为中间连接件，32为第二牵引杆，33为牵引杆安全绳，34为轴箱端盖，35为轴箱轴承。
具体实施方式
本发明的目的是提供一种货运电力机车用Bo转向架，以便能够在货运电力机车脱轨的情况下仍然能够对转向架中的齿轮箱和电机等关键部件进行保护。
为了使本技术领域的人员更好地理解本发明的方案，下面结合附图和具体实施方式对本发明作进一步的详细说明。
请参考图1和图2，本发明实施例中所提供的货运电力机车用Bo转向架(以下简称Bo转向架)包括构架10、两个轮对以及两套用于对轮对进行驱动 的驱动系统14，两个轮对分别为第一轮对6-1和第二轮对6-2，当然该Bo转向架中包括用于对轮对进行制动的基础制动装置11，与现有的Bo转向架相比，本发明实施例中所提供的Bo转向架的构架用于与铁轨相对的一面上还设置有横跨铁轨的脱轨保护条19，并且脱轨保护条19与地面之间的距离要小于轮对的驱动系统14与地面之间的距离。
由于在构架10用于与铁轨相对的一面上设置了脱轨保护条19，并且该脱轨保护条19横跨铁轨，且脱轨保护条19与地面之间的距离小于轮对的驱动系统14与地面之间的距离，因此一旦机车发生脱轨事故，那么脱轨保护条19将骑跨在铁轨的轨面上，而由于驱动系统14要高于脱轨保护条19，因此这就避免了驱动系统14中的齿轮箱17以及驱动电机15等关键部件与铁轨进行接触，从而在脱轨事故发生时，有效保护了驱动系统14中的齿轮箱17和驱动电机15等关键部件。
不难理解的是，脱轨保护条19的强度应该足够支撑Bo转向架以及其上部设置的机车的重量，以避免Bo转向架以及其上部的机车将脱轨保护条19压垮。
需要进行说明的是，脱轨保护条19的设置形式可以有多种，只要保证其能够横跨铁轨，并且其与地面之间的距离小于驱动系统14与地面之间的距离即可，并且脱轨保护条19的数量也不受限制，本发明实施例中提供了一种设置脱轨保护条19的具体形式，如图3中和图4中所示，构架10的四角部分分别设置有一根由构架10向地面方向延伸的脱轨保护条安装座18，并且脱轨保护条19具体为两根，两根脱轨保护条19与铁轨的延伸方向垂直，并且每根脱轨保护条19的两端分别与两根脱轨保护条安装座18固定连接，如图2中所示，为了设置的方便，本实施例中还将撒砂装置3和扫石器设置在脱轨保护条安装座18上，如图4中所示，其中撒砂装置3的撒砂管对准第一轮对6-1和第二轮对6-2的踏面。
随着机车的长时间运行，脱轨保护条19与脱轨保护条安装座18之间的连接部位可能会出现松动甚至失效，这就有可能导致脱轨保护条19意外脱落，一旦脱轨保护条19意外脱落将可能造成重大事故，为此本实施例中还设置了用于防止脱轨保护条19意外脱落的保护条安全绳20，保护条安全绳20的一 端固定在脱轨保护条19上，另一端固定设置在脱轨保护条安装座18上，如图3中所示。
本发明实施例中所提供的货运电力机车用Bo转向架的一系悬挂系统包括一系弹簧7、一系垂向减震器5以及一端与Bo转向架的轴箱12相连，另一端与构架10相连的轴箱拉杆22，如图5中所示，一系弹簧7安装在轴箱12的两侧，并且一系弹簧7的一端与轴箱12相连，另一端与构架10相连，构架10支撑在一系弹簧7上，一系垂向减震器5用于抵消一系弹簧7对构架10较大的反弹作用，其安装在轴箱12与构架10之间，一系垂向减震器5与一系弹簧7匹配后用于缓冲构架10的垂向振动，为了进一步优化方案，本实施例中的轴箱拉杆22为三角式轴箱拉杆，如图6中所示，并且该三角式轴箱拉杆的一个角与轴箱12连接，另外两个角分别与构架10连接。
三角式轴箱拉杆纵向连接轴箱12和构架10，从而传递轮对的牵引力和制动力，并且在一系悬挂刚度较小的情况下，轴箱拉杆22还承担着为Bo转向架提供一系横向刚度的任务，由于轴箱拉杆22为三角式轴箱拉杆，因而其更加稳定可靠，从而可以为Bo转向架提供足够的横向刚度。
通常情况下，一系悬挂系统中还包括一系调整垫片，一系调整垫片用于调整一系弹簧7的工作高度，从而实现对机车轴重的调整。
本发明实施例中所提供的Bo转向架中的两个轮对的轴上均设置有抱轴箱体25，抱轴箱体25通过第一抱轴承23和第二抱轴承24安装在轮对的轴上，如图7中所示，并且该Bo转向架中的驱动系统包括齿轮箱17中的齿轮传动副和牵引电机15，其中齿轮传动副用于向轮对传递动力，牵引电机15的一端与构架10相连，另一端与设置在轮对上的抱轴箱体25相连，其中牵引电机15的电机轴与齿轮箱17中的小齿轮28采用内锥式过盈配合连接，并且小齿轮28设置为悬臂式承载结构，齿轮箱17中的大齿轮由齿圈27和齿轮毂26组成，齿轮毂26通过过盈的配合方式固定安装在轮对的车轴上，齿圈27通过螺栓固定连接在齿轮毂26上。
更进一步的，本实施例中采用大功率的交流电机作为牵引电机，为了保证齿轮箱17中大齿轮与小齿轮28的准确啮合，牵引电机15的一端通过抱轴箱体25支撑在轮对的车轴上，另一端通过弹性吊杆29与构架10悬挂连接，并 且弹性吊杆29的两端安装有弹性橡胶关节，以便减小牵引电机15在振动时对转向架所造成的冲击，如图8和图9中所示，为了进一步优化方案，防止在弹性吊杆29失效时机车翻车，本实施例中还在构架10上设置有安全托板30，安全托板30与弹性吊杆29垂直设置，并且安全托板30靠近牵引电机15的一端伸入到牵引电机15上设置的防脱槽中，如图9中所示，安全托板30和防脱槽的配合可以有效避免在弹性吊杆29断裂时机车翻车事故的发生。
齿轮箱17的一端与抱轴箱体25固定相连，另一端与牵引电机15固定相连，并且优选的，齿轮箱17为分体式结构，该齿轮箱17为法兰式焊接齿轮箱，以提高齿轮箱17的密封性能，避免漏油问题的产生，齿轮箱17采用油润滑的润滑方式，第二抱轴承24采用脂润滑的方式进行润滑，为避免齿轮箱17中的润滑油进入抱轴箱体25中的第二抱轴承24中，在齿轮箱17与第二抱轴承24之间设计了密封回油结构。
请参考图10和图11，本发明实施例中所提供的Bo转向架的牵引装置具体包括第一牵引杆2第二牵引杆32以及设置在第一牵引杆2和第二牵引杆32之间的中间连接件31，其中第一牵引杆2和第二牵引杆32分别通过第一销轴和第二销轴与中间连接件31铰接，并且第一牵引杆2的端部设置有用于与车体相连的车体连接座1，第二牵引杆32的端部设置有用于与构架相连的第一构架连接座，中间连接件31上还设置有用于与构架10相连的第二构架连接座，如图10中所示。
为了安全起见，本实施例中还设置有牵引杆安全绳33，牵引杆安全绳33的一端与第二牵引杆32固定连接，另一端用于与构架10固定连接，如图10中所示，牵引杆安全绳33的设置可有效防止牵引杆脱落。
优选的，车体连接座1与第一牵引杆2通过橡胶关节连接，以便于使车体相对于第一牵引杆2可以有少量相对运动，并缓冲车体对转向架的冲击。
请同时参考图13，本发明实施例中所提供的构架10具体为“日”字型构架，该构架10包括两根与铁轨延伸方向一致的纵梁和三根与纵梁垂直的横梁，并且三根横梁中包括一根位于构架10中间的中部横梁和两根位于构架10两端的端部横梁，各个梁体由钢板组焊而成，牵引装置中的第一构架连接座用于与构架的中部横梁连接，第二构件连接座用于与构架的其中一个端部横梁连接。
进一步的，本实施例中的中间连接件31为三角连接部件，如图11中所示，该中间连接件上设置有相互独立的两个第二构架连接座，分别为左侧第二构架连接座30-1和右侧第二构架连接座30-2，并且两个第二构架连接座分别设置于由中间连接件31同一位置引出并且沿第一销轴的轴线方向上分开的两个支撑杆上。
如图12中所示，本发明中所提供的货运电力机车用Bo转向架的轴箱轴承35采用了带密封的整体式圆锥滚子轴承，轴箱体通过圆锥滚子轴承安装在轮对轴的两端，为了防止轴箱轴承35在运行中受到损伤，本实施例中还在轴箱12的端部设置有轴箱端盖34。
本发明实施例中所提供的货运电力机车用Bo转向架的基础制动装置11总共包括四个，分别与两个轮对中的四个车轮相对应，并且其中一个轮对上的基础制动器11为带蓄能制动器的基础制动装置，另外一个轮对上的基础制动装置11为不带蓄能制动器的基础制动装置，并且四个基础制动装置11均安装在构架10的中部横梁位置。
该货运电力机车用Bo转向架的二系悬挂系统包括二系弹簧8、二系垂向减震器9和二系横向减震器13，并且二系弹簧8共包括四个，靠近纵梁的两侧每侧分别设置有两个，且二系弹簧8一端安装在构架10上，另外一端用于与车体连接，二系垂向减震器9的一端连接在构架上10，另一端用于与车体相连，二系横向减震器13设置在构架10上用于缓冲车体的横向振动，并且二系弹簧8采用高挠螺旋弹簧集中布置在靠近中部横梁的位置，从而使机车通过弯道时弹簧的偏转量较小，从而改善弹簧的受力状况。
为了进一步保护Bo转向架中的各个部件，本实施例中还在Bo转向架上设置了轴温报警装置、轮缘润滑系统4和排石器等，以便于对Bo转向架的轮对和轴承等部件进行保护。
本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以对本发明进行若干改进和修饰，这些改进和修饰也落入本发明权利要求的保护范围内。

Claims (10)

  1. 一种货运电力机车用Bo转向架，包括构架、两个轮对以及用于对所述轮对进行驱动的两套轮对驱动系统，其特征在于，所述构架用于与铁轨相对的一面上还设置有横跨铁轨的脱轨保护条，且所述脱轨保护条与地面之间的距离要小于所述轮对驱动系统与地面之间的距离。
  2. 根据权利要求1所述的货运电力机车用Bo转向架，其特征在于，所述构架的四角部分分别设置有一根由所述构架向地面方向延伸的脱轨保护条安装座，所述脱轨保护条包括两根，且两根所述脱轨保护条均与铁轨的延伸方向垂直，每根所述脱轨保护条的两端分别与两根脱轨保护条安装座固定连接。
  3. 根据权利要求1所述的货运电力机车用Bo转向架，其特征在于，所述Bo转向架中的一系悬挂系统包括一系弹簧、一系垂向减震器以及一端与Bo转向架的轴箱相连，另一端与构架相连的轴箱拉杆，且所述轴箱拉杆为三角式轴箱拉杆，所述三角式轴箱拉杆的一个角与所述轴箱连接，另外两个角分别与所述构架连接。
  4. 根据权利要求1所述的货运电力机车用Bo转向架，其特征在于，两个所述轮对的轴上均设置有抱轴箱体，且所述Bo转向架中的驱动系统包括：
    用于向所述轮对传递动力的齿轮传动副；
    与所述齿轮传动副配合且一端与所述构架相连，另一端与所述抱轴箱体相连的牵引电机。
  5. 根据权利要求4所述的货运电力机车用Bo转向架，其特征在于，所述牵引电机为交流电机，且所述牵引电机通过弹性吊杆与所述构架悬挂连接。
  6. 根据权利要求5所述的货运电力机车用Bo转向架，其特征在于，还包括设置于所述构架上的安全托板，所述安全托板与所述弹性吊杆垂直设置，且所述安全托板靠近所述牵引电机的一端伸入到所述牵引电机上设置的防脱槽中。
  7. 根据权利要求1所述的货运电力机车用Bo转向架，其特征在于，所述Bo转向架的牵引装置包括第一牵引杆和第二牵引杆，并且所述第一牵引杆和所述第二牵引杆之间设置有中间连接件，所述第一牵引杆和第二牵引杆分别通 过第一销轴和第二销轴与所述中间连接件铰接，所述第一牵引杆的端部设置有用于与车体相连的车体连接座，所述第二牵引杆的端部设置有用于与所述构架相连的第一构架连接座，且所述中间连接件上还设置有用于与所述构架相连的第二构架连接座。
  8. 根据权利要求7所述的货运电力机车用Bo转向架，其特征在于，所述构架为“日”字型构架，且所述构架包括两根与铁轨延伸方向一致的纵梁和三根与所述纵梁垂直的横梁，所述横梁分别包括位于中间的中部横梁和位于两端的端部横梁，所述第一构架连接座用于与所述构架的中部横梁连接，所述第二构架连接座用于与所述构架的其中一个端部横梁连接。
  9. 根据权利要求8所述的货运电力机车用Bo转向架，其特征在于，所述中间连接件上设置有相互独立的两个第二构架连接座，且两个所述第二构架连接座分别设置于由所述中间连接件同一位置引出并且沿所述第一销轴的轴线方向分开的两个支撑杆上。
  10. 根据权利要求1所述的货运电力机车用Bo转向架，其特征在于，所述Bo转向架的轴箱轴承为圆锥滚子轴承。
PCT/CN2014/093558 2014-04-16 2014-12-11 一种货运电力机车用Bo转向架 WO2015158145A1 (zh)

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