WO2018058800A1 - 一种受电弓驱动装置 - Google Patents

一种受电弓驱动装置 Download PDF

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Publication number
WO2018058800A1
WO2018058800A1 PCT/CN2016/110096 CN2016110096W WO2018058800A1 WO 2018058800 A1 WO2018058800 A1 WO 2018058800A1 CN 2016110096 W CN2016110096 W CN 2016110096W WO 2018058800 A1 WO2018058800 A1 WO 2018058800A1
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Prior art keywords
airbag
guiding
seat
fixed
air bag
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Ceased
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PCT/CN2016/110096
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English (en)
French (fr)
Inventor
陈敏坚
杨瀛瑜
张彦林
陈珍宝
冯叶
陈明国
孙云嵩
李军
孙宁
周维
曹秀峰
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CRRC Zhuzhou Locomotive Co Ltd
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CRRC Zhuzhou Locomotive Co Ltd
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Priority to RU2019109006A priority Critical patent/RU2714280C1/ru
Publication of WO2018058800A1 publication Critical patent/WO2018058800A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
    • B60L5/18—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
    • B60L5/22—Supporting means for the contact bow
    • B60L5/26—Half pantographs, e.g. using counter rocking beams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
    • B60L5/18—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
    • B60L5/22—Supporting means for the contact bow
    • B60L5/28—Devices for lifting and resetting the collector
    • B60L5/32—Devices for lifting and resetting the collector using fluid pressure

Definitions

  • the invention belongs to the pantograph technology, and in particular relates to a pantograph driving device.
  • the air spring is also guided by the guiding device when inflating, and the guiding device is arranged inside the air spring in the prior art. Due to the creeping motion of the air spring, the inner wall thereof is liable to come into contact with the guide device and wear out.
  • the present invention aims to provide a pantograph driving device which has small wind resistance, good aerodynamic performance, and low failure rate.
  • a pantograph driving device comprising being mounted on the lower arm a fixed seat at the lower end of the rod, an air bag mounted on the bottom frame, the air bag is provided with at least two, one end of each air bag is hinged with the bottom frame, and one end of the air bag not hinged with the bottom frame is a movable end, and each air bag is The movable end and the movable end of the adjacent air bag are connected in series by a rigid connecting device, and each air bag can drive the airbag adjacent to the adjacent airbag through the rigid connecting device;
  • the length direction of the airbag is consistent with the running direction of the train
  • wire rope having one end connected to the fixed seat and the other end being fixed to the movable end of the first air bag.
  • a conventional large-sized airbag is replaced by a plurality of small-sized airbags that are interlocked with each other, and placed horizontally, and the height of the pantograph chassis is reduced and the gear is reduced while ensuring sufficient thrust.
  • the wind area is conducive to the optimization of aerodynamic performance.
  • the rigid connecting device comprises a push rod fixed to the movable end of the air bag, and a pair of connecting rods respectively connecting the two ends of the push rods of the adjacent two air bags in sequence.
  • the rigid connection ensures the synchronism of the movement of the airbag.
  • the rigid connecting device is further provided with a guiding device for ensuring linear movement of the airbag.
  • the guiding device is a linear bearing fixed on the chassis, and the connecting rod is assembled with the linear bearing and can be translated and moved along the axis of the linear bearing.
  • the guiding device comprises a first guiding seat located between the connecting rods and fixed on the chassis, a cross bar which is fixed across the connecting rods and fixed to the connecting rods, and is fixed at the bottom of the connecting rod a second guiding seat, the first guiding seat is aligned with the second guiding seat and has a gap, a guiding plate is arranged between the first guiding seat and the second guiding seat, and the two ends of the guiding plate and the first guiding seat respectively It is hinged to the second guide seat.
  • the first guiding seat and the second guiding seat make the airbag not yaw during the movement, and the chord length of the arc in which the guiding plate can rotate is the amount of the movable size of the airbag.
  • the lower end of the lower arm and the two sides of the fixed seat are also hinged with a pair of adjusting plates, A card slot is disposed on the entire board and the fixing base.
  • the two ends of the wire rope bypass the card slot on the fixing seat, and are finally fixed to the push rod of the movable end of the first air bag via the card slot on the adjusting plate.
  • the purpose of the adjustment plate is to adjust the torque and adjust the position of the plate to determine the difference in the bowing torque.
  • the balloon has a diameter of 150 to 170 mm.
  • the guiding device is arranged outside the airbag, effectively avoiding the problem of contact wear.
  • FIG. 1 is a perspective view showing a driving apparatus according to a first embodiment of the present invention.
  • Figure 2 is a side elevational view of the drive unit of the first embodiment of the present invention.
  • Fig. 3 is a perspective view showing a driving device according to a second embodiment of the present invention.
  • Figure 4 is a partial enlarged view of I in Figure 3.
  • Figure 5 is a side elevational view of the drive unit of the second embodiment of the present invention.
  • a pantograph driving device includes a wire rope 31 and is mounted on the lower arm 2
  • the balloon 34 has a diameter of 150 to 170 mm.
  • the air bag 34 is provided with two, one end of each air bag 34 is hinged to the chassis 1, and the end of the air bag 34 not hinged to the chassis 1 is a movable end 38.
  • the movable end 38 of each air bag 34 is coupled in series with the movable end 38 of the adjacent air bag 34 by a rigid connecting means, and each of the air bags 34 can be brought into linkage with its adjacent air bag 34 by a rigid connecting means.
  • the rigid connecting device includes a push rod 36 fixed to the movable end 38 of the air bag 34, and a pair of connecting rods 35 for sequentially connecting the ends of the push rods 36 of the adjacent two air bags 34, respectively.
  • a guide for ensuring linear movement of the air bag 34 is also provided on the rigid connecting device.
  • the guiding device is a linear bearing 37 fixed to the chassis, and the connecting rod 35 is assembled with the linear bearing and is movable in translation along the axis of the linear bearing 37.
  • the longitudinal direction of the air bag 34 coincides with the running direction of the train.
  • a pair of adjusting plates 32 are hinged on the lower ends of the lower arm rods 2 and on both sides of the fixing base 33.
  • the adjusting plate 32 and the fixing base 33 are provided with a card slot.
  • Both ends of the wire rope 31 bypass the card slot on the fixing base 33, and are finally fixed to the push rod 36 of the movable end of the first air bag 34 via the card slot on the adjusting plate 32.
  • Both ends of the push rod 36 are provided with a connecting rod 35 and a hole in which the wire rope 31 is mounted.
  • the connecting rod 35 is threaded at both ends, one end of which is externally threaded and the other end of which is internally threaded.
  • the externally threaded end of the connecting rod 35 passes through a mounting hole reserved by the push rod 36, and a rigid connection is made using a tightening nut 39.
  • Both ends of the wire rope 31 are crimped with a joint with an external thread, and are directly connected to the internally threaded end of the connecting rod 35 through the joint.
  • the joint needs to be provided with a loosening measure, preferably by mechanically locking the nut between the wire rope 31 and the joint of the connecting rod 35.
  • the air bag 34 When the air bag 34 is filled with compressed air of a certain pressure, the air bag 34 is extended, and its movable end 38 is pushed.
  • the rigid connecting device formed by the movable lever 36 and the connecting rod 35 moves forward, thereby achieving synchronous linkage of the two airbags.
  • the push rod 36 drags the wire rope 31 linearly, and the wire rope 31 pulls the fixed seat to rotate the pantograph lower arm 2.
  • the guiding device includes a first guiding seat 311 located between the connecting rods 35 and fixed to the chassis 1, spanning the two connecting rods 35. And a cross bar 314 fixed to the connecting rod 35 and a second guiding seat 312 fixed to the bottom of the cross bar 314.
  • the first guiding seat 311 is aligned with the second guiding seat 312 and has a gap
  • the first guiding seat 311 and the A guiding plate 313 is disposed between the two guiding seats 312, and two ends of the guiding plate 313 are respectively hinged with the first guiding seat 311 and the second guiding seat 312.
  • the first guide seat 311 and the second guide seat 312 prevent the airbag 34 from being yawed during the movement, and the chord length of the arc in which the guide plate 313 can rotate is the amount of movement of the airbag 34.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)

Abstract

一种受电弓驱动装置，包括安装于下臂杆（2）下端的固定座（33）、安装于底架（1）上的气囊（34），所述气囊（34）至少设有两个，每个气囊（34）的一端均与底架（1）铰接，气囊（34）未与底架（1）铰接的一端为活动端（38），每个气囊（34）的活动端（38）与相邻气囊（34）的活动端（38）通过刚性连接装置串接，且每一个气囊（34）均可通过刚性连接装置带动与其相邻的气囊（34）联动；所述气囊（34）的长度方向与列车运行方向一致；还包括一端与固定座（33）连接、另一端固定于第一个气囊（34）活动端（38）的钢丝绳（31）。所述受电弓驱动装置采用多个小尺寸气囊，使得挡风面积减小的同时，降低了受电弓底架的高度，风阻减小，有利于空气动力性能的优化。同时，导向装置布置在气囊外部，有效避免了接触磨损的问题。

Description

一种受电弓驱动装置 技术领域
本发明属于受电弓技术,具体涉及一种受电弓驱动装置。
背景技术
在现有电力机车和城轨车辆受电弓用驱动装置技术中，主要有弹簧驱动和空气弹簧(俗称气囊、皮囊气缸)两种。由于空气弹簧重量轻，制造、运维成本低，以及其阻尼特性等综合原因，采用空气弹簧驱动的受电弓较弹簧驱动具有良好的跟随性，受流质量高。目前空气弹簧驱动的受电弓已成为发展趋势，国内外电力机车、动车组以及城轨车辆受电弓驱动装置几乎都使用了空气弹簧。
为提供足够的受电弓升弓转矩，现有的驱动装置往往都只能选择直径较大的空气弹簧，其直径达到了300mm。大直径的空气弹簧使受电弓底架结构变高，导致挡风面积增加，风阻大,不利于受电弓空气动力性能，尤其是在高速动车组上，对受流稳定性有着巨大的影响。
另外，空气弹簧在充气膨胀时还要接触导向装置进行导向,现有技术中导向装置多布置在空气弹簧内部。由于空气弹簧的蠕动，其内壁容易与导向装置发生接触磨损，出现故障。
发明内容
针对上述问题，本发明旨在提供一种风阻小，空气动力性能好，且故障率低的受电弓驱动装置。
本发明解决问题的技术方案是：一种受电弓驱动装置，包括安装于下臂 杆下端的固定座、安装于底架上的气囊，所述气囊至少设有两个，每个气囊的一端均与底架铰接，气囊未与底架铰接的一端为活动端，每个气囊的活动端与相邻气囊的活动端通过刚性连接装置串接，且每一个气囊均可通过刚性连接装置带动与其相邻的气囊联动；
所述气囊的长度方向与列车运行方向一致；
还包括一端与固定座连接、另一端固定于第一个气囊活动端的钢丝绳。
上述方案中，将传统一个大尺寸的气囊，用多个相互联动的小尺寸气囊代替，并水平放置，在保证推力足够的前提下，降低了受电弓底架的高度，且减小了挡风面积，有利于空气动力性能的优化。
具体的，所述刚性连接装置包括固定于气囊活动端的推杆、分别将相邻两气囊的推杆两端顺次连接的一对连接杆。刚性连接装置保证了气囊移动的同步性。
优选的，所述刚性连接装置上还设有用于保证气囊直线移动的导向装置。
一种具体的方案中，所述导向装置为固定于底架上的直线轴承，所述连接杆与直线轴承装配，并可沿直线轴承的轴线平移运动。
另一种具体的方案中，所述导向装置包括位于连接杆之间并固定于底架上的第一导向座、横跨两根连接杆并与连接杆固定的横杆、固定于横杆底部的第二导向座，所述第一导向座与第二导向座对齐并留有间隙，第一导向座和第二导向座之间设有导向板，且导向板两端分别与第一导向座和第二导向座铰接。
第一导向座和第二导向座使得气囊在移动过程中不发生偏摆，导向板能够转动的弧度的弦长即为气囊可移动的尺寸量。
进一步的，所述下臂杆下端、位于固定座两侧还铰接有一对调整板，调 整板和固定座上均设有卡槽，所述钢丝绳两端绕过固定座上的卡槽，并经由调整板上的卡槽，最终固定于第一个气囊活动端的推杆上。
调整板的目的在于调整力矩，调整板位置的变化，决定了升弓力矩的不同。
优选的，所述气囊直径为150～170mm。
本发明的显著效果是：
1.采用了多个小尺寸气囊，使得挡风面积减小的同时，降低了受电弓底架的高度，风阻减小，有利于空气动力性能的优化。
2.导向装置布置在气囊外部，有效避免了接触磨损的问题。
附图说明
下面结合附图对本发明作进一步说明。
图1是本发明实施例1的驱动装置立体示意图。
图2是本发明实施例1的驱动装置侧面图。
图3是本发明实施例2的驱动装置立体示意图。
图4是图3中Ⅰ的局部放大图。
图5是本发明实施例2的驱动装置侧面图。
图中：1、底架；2、下臂杆；31、钢丝绳；32、调整板；33、固定座；34、气囊；35、连接杆；36、推杆；37、直线轴承；38、活动端；39、紧固螺母；311、第一导向座；312、第二导向座；313、导向板；314、横杆。
具体实施方式
实施例1
如图1～2所示，一种受电弓驱动装置，包括钢丝绳31、安装于下臂杆2 下端的固定座33、安装于底架1上的气囊34。所述气囊34直径为150～170mm。
所述气囊34设有两个，每个气囊34的一端均与底架1铰接，气囊34未与底架1铰接的一端为活动端38。每个气囊34的活动端38与相邻气囊34的活动端38通过刚性连接装置串接，且每一个气囊34均可通过刚性连接装置带动与其相邻的气囊34联动。
所述刚性连接装置包括固定于气囊34活动端38的推杆36、分别将相邻两气囊34的推杆36两端顺次连接的一对连接杆35。所述刚性连接装置上还设有用于保证气囊34直线移动的导向装置。所述导向装置为固定于底架上的直线轴承37，所述连接杆35与直线轴承装配，并可沿直线轴承37的轴线平移运动。
所述气囊34的长度方向与列车运行方向一致。
所述下臂杆2下端、位于固定座33两侧还铰接有一对调整板32，调整板32和固定座33上均设有卡槽。
钢丝绳31两端绕过固定座33上的卡槽，并经由调整板32上的卡槽，最终固定于第一个气囊34活动端的推杆36上。
推杆36两端留有连接杆35和钢丝绳31安装的孔。连接杆35两端为螺纹，其中一端为外螺纹，另一端为内螺纹。连接杆35外螺纹端穿过推杆36预留的安装孔，使用紧固螺母39实现刚性连接。
所述钢丝绳31两端扣压带外螺纹的接头，并通过该接头与所述连接杆35内螺纹端直接连接。该连接处需要设置有防松措施，优选地，通过在钢丝绳31与连接杆35接头之间增加并紧螺母的机械防松方式实现。
当所述气囊34充以一定压力的压缩空气，气囊34伸长，其活动端38推 动推杆36、连接杆35构成的刚性连接装置向前运动，进而实现两个气囊的同步联动。推杆36拖动钢丝绳31直线运动，钢丝绳31拉动固定座，使受电弓下臂杆2转动。
实施例2
如图3～5所示，重复实施例1，所不同的是：所述导向装置包括位于连接杆35之间并固定于底架1上的第一导向座311、横跨两根连接杆35并与连接杆35固定的横杆314、固定于横杆314底部的第二导向座312，所述第一导向座311与第二导向座312对齐并留有间隙，第一导向座311和第二导向座312之间设有导向板313，且导向板313两端分别与第一导向座311和第二导向座312铰接。
第一导向座311和第二导向座312使得气囊34在移动过程中不发生偏摆，导向板313能够转动的弧度的弦长即为气囊34可移动的尺寸量。

Claims (7)

  1. 一种受电弓驱动装置，包括安装于下臂杆(2)下端的固定座(33)、安装于底架(1)上的气囊(34)，其特征在于：所述气囊(34)至少设有两个，每个气囊(34)的一端均与底架(1)铰接，气囊(34)未与底架(1)铰接的一端为活动端(38)，每个气囊(34)的活动端(38)与相邻气囊(34)的活动端(38)通过刚性连接装置串接，且每一个气囊(34)均可通过刚性连接装置带动与其相邻的气囊(34)联动；
    所述气囊(34)的长度方向与列车运行方向一致；
    还包括一端与固定座连接、另一端固定于第一个气囊(34)活动端(38)的钢丝绳(31)。
  2. 根据权利要求1所述的受电弓驱动装置，其特征在于：所述刚性连接装置包括固定于气囊(34)活动端(38)的推杆(36)、分别将相邻两气囊(34)的推杆(36)两端顺次连接的一对连接杆(35)。
  3. 根据权利要求2所述的受电弓驱动装置，其特征在于：所述刚性连接装置上还设有用于保证气囊(34)直线移动的导向装置。
  4. 根据权利要求3所述的受电弓驱动装置，其特征在于：所述导向装置为固定于底架上的直线轴承(37)，所述连接杆(35)与直线轴承装配，并可沿直线轴承(37)的轴线平移运动。
  5. 根据权利要求3所述的受电弓驱动装置，其特征在于：所述导向装置包括位于连接杆(35)之间并固定于底架(1)上的第一导向座(311)、横跨两根连接杆(35)并与连接杆(35)固定的横杆(314)、固定于横杆(314)底部的第二导向座(312)，所述第一导向座(311)与第二导向座(312)对 齐并留有间隙，第一导向座(311)和第二导向座(312)之间设有导向板(313)，且导向板(313)两端分别与第一导向座(311)和第二导向座(312)铰接。
  6. 根据权利要求2所述的受电弓驱动装置，其特征在于：所述下臂杆(2)下端、位于固定座(33)两侧还铰接有一对调整板(32)，调整板(32)和固定座(33)上均设有卡槽，所述钢丝绳(31)两端绕过固定座(33)上的卡槽，并经由调整板(32)上的卡槽，最终固定于第一个气囊(34)活动端的推杆(36)上。
  7. 根据权利要求1～6任一项所述的受电弓驱动装置，其特征在于：所述气囊(34)直径为150～170mm。
PCT/CN2016/110096 2016-09-29 2016-12-15 一种受电弓驱动装置 Ceased WO2018058800A1 (zh)

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