WO2022121352A1 - 一种铁路货车电制动缸及基础制动装置 - Google Patents

一种铁路货车电制动缸及基础制动装置 Download PDF

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Publication number
WO2022121352A1
WO2022121352A1 PCT/CN2021/112417 CN2021112417W WO2022121352A1 WO 2022121352 A1 WO2022121352 A1 WO 2022121352A1 CN 2021112417 W CN2021112417 W CN 2021112417W WO 2022121352 A1 WO2022121352 A1 WO 2022121352A1
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WIPO (PCT)
Prior art keywords
railway freight
electric brake
brake cylinder
cylinder
assembly
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PCT/CN2021/112417
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English (en)
French (fr)
Inventor
涂智文
刘凤伟
姜瑞金
徐勇
张金发
陈祖顺
曾德凉
韩亚培
王丽娜
周乐
刘幻云
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中车长江车辆有限公司
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Application filed by 中车长江车辆有限公司 filed Critical 中车长江车辆有限公司
Publication of WO2022121352A1 publication Critical patent/WO2022121352A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
    • B60T13/746—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive and mechanical transmission of the braking action

Definitions

  • the present disclosure relates to the technical field of railway freight car braking, and in particular, to an electric brake cylinder and a basic braking device for a railway freight car.
  • the railway freight car is a means of transport to complete the task of railway freight transportation, and the braking system of the railway freight car, as the execution structure of the railway freight car to implement the deceleration and parking functions, is an important part of the railway freight car, and the technical state of the braking system directly affects the vehicle. Safe to run.
  • the commonly used braking method is air braking.
  • the sealing components such as the cylinder body, the sealing ring and the piston of the air brake cylinder all require high sealing performance, and need to be carried out frequently. Repair, otherwise it will lead to brake cylinder leakage failure, which will affect the normal transportation of the train in serious cases.
  • the traditional brake cylinder uses compressed air as the braking energy
  • the change of the volume of the brake cylinder directly affects the braking force.
  • the wear of the shoe increases, and the basic brake device generally needs to use a brake shoe gap adjuster, which leads to a complex system structure.
  • the rigidity and gap of the relevant parts of the vehicle change, even if there is a brake shoe.
  • Due to the function of the clearance adjuster the stroke of the brake piston of the brake cylinder will also change to a certain extent after use, and it is difficult to achieve stable output, so that the braking force of the vehicle after use will become weaker, which is especially important for train operation. It is a safety hazard caused by running downhill.
  • the existing truck is equipped with a hand brake device to ensure that during long-term parking, even if there is no compressed air in the brake cylinder, the vehicle can park, but the hand brake
  • the device has the disadvantages of requiring manual operation, large on-site workload and prone to misoperation.
  • an electric brake cylinder and a basic braking device for a railway freight car are provided to solve the problem that the structure of the braking system in the prior art is complex, the air brake is easy to leak, and the compressed air brake is used.
  • Technical problems with reduced braking force are prone to occur when the wheels are turned.
  • an electric brake cylinder for railway freight cars which is used for the basic braking of railway freight cars, comprising: a drive motor, the drive motor outputs driving energy; and a telescopic assembly
  • the telescopic assembly may include: A telescopic sleeve and a telescopic rod that are driven by threads; a transmission assembly, the transmission assembly is connected between the telescopic rod and the drive motor; wherein the drive motor drives the transmission assembly to run, and the transmission The assembly drives the telescopic rod to telescopically move in the telescopic sleeve.
  • a threaded assembly is provided in the telescopic sleeve, the transmission assembly is connected with the threaded assembly, the threaded assembly is connected with the telescopic rod member, and the telescopic rod member passes through the The transmission assembly drives the movement of the threaded assembly to telescopically move in the telescopic sleeve.
  • the transmission assembly may include a turbine and a worm, the turbine is meshed with the worm, the worm is connected and fixed with the output shaft of the drive motor, and the turbine is connected with the threaded assembly .
  • the threaded assembly may include a screw rod and a nut, the screw rod and the nut are threadedly connected, the turbine wheel is keyed with the screw rod, the telescopic rod is connected and fixed with the nut, and the The telescopic rod is slidably connected in the telescopic sleeve, and the screw drives the telescopic rod to move through the nut.
  • the telescopic sleeve is connected with a transmission casing
  • the transmission assembly is arranged in the transmission casing
  • the end of the transmission casing is connected with a first connector
  • the end of the telescopic rod is connected
  • a second connection head is connected
  • the electric brake cylinder is connected to the basic braking device of the railway freight car through the first connection head and the second connection head.
  • the transmission housing includes a cylindrical barrel and a rectangular barrel that penetrate each other, the turbine is arranged in the cylindrical barrel, the worm is arranged in the rectangular barrel, and the turbine and the worm are located in the The transmission housing is engaged in the inner mesh.
  • one end of the cylindrical cylinder is connected with the telescopic sleeve, the other end of the cylindrical cylinder is connected with a first cylinder cover, and the outer side of the first cylinder cover is connected with the first connecting head .
  • the first connector includes a bottom plate and a side plate, there are two side plates, the two side plates are oppositely disposed on the bottom plate, and the two side plates are oppositely opened There are pin holes, and the bottom plate of the first connecting head is connected to the outside of the first cylinder head.
  • both ends of the output shaft of the drive motor protrude from the outside of the drive motor.
  • a basic braking device comprising the above-mentioned electric brake cylinder of a railway freight car and two sets of brake beams, wherein the electric brake cylinder of the railway freight car is connected to the two sets of the brake beams. between beams.
  • FIG. 1 shows a front view of an electric brake cylinder for a railway freight car in accordance with one or more embodiments of the present disclosure
  • FIG. 2 illustrates a side view of an electric brake cylinder for a railway freight car in accordance with one or more embodiments of the present disclosure
  • FIG. 3 shows a front view of a transmission housing in accordance with one or more embodiments of the present disclosure
  • FIG. 4 illustrates a side view of a transmission housing in accordance with one or more embodiments of the present disclosure
  • FIG. 5 shows a schematic structural diagram of a transmission housing according to one or more embodiments of the present disclosure
  • FIG. 6 illustrates a front view of a first cylinder head in accordance with one or more embodiments of the present disclosure
  • FIG. 7 illustrates a front view of a first cylinder head in accordance with one or more embodiments of the present disclosure
  • FIG. 8 shows a block diagram of a first cylinder head in accordance with one or more embodiments of the present disclosure.
  • an electric brake cylinder of a railway freight car is disclosed.
  • FIG. 1 is a front view of an electric brake cylinder of a railway freight car according to one or more embodiments of the present disclosure
  • FIG. 2 is a view of the electric brake cylinder of a railway freight car according to the present disclosure.
  • the electric brake cylinder for railway freight cars in this embodiment may include a drive motor 1 , a telescopic assembly 110 and a transmission assembly 120 .
  • the telescopic assembly 110 may include a telescopic sleeve 3 and a telescopic rod 4 that are driven by threads, and the transmission assembly 120 is connected to the drive motor 1, and the drive motor 1 drives the transmission assembly, so that the transmission assembly 120 drives the telescopic rod 4 to telescopically move in the telescopic sleeve 3.
  • the compressed air is used as the driving energy, which avoids the processing of the air brake cylinder cylinder block, sealing ring and piston and other sealing components.
  • the manufacturing method shortens the maintenance period, and solves the technical problems that the compressed air of the existing railway freight car is easy to leak and the braking force is easily weakened when the wheels are braked by the compressed air.
  • the telescopic sleeve 3 is provided with a threaded assembly 130
  • the transmission assembly 120 is connected with the threaded assembly 130
  • the threaded assembly 130 is connected with the telescopic rod 4
  • the telescopic rod 4 passes through the transmission assembly 120 drives the movement of the threaded assembly 130 to telescopically move in the telescopic sleeve 3
  • the transmission assembly 120 includes a turbine 5 and a worm 6, the turbine 5 is meshed with the worm 6, the worm 6 is connected and fixed with the output end of the drive motor, and the turbine 5 is connected with the threaded assembly.
  • the threaded assembly 130 may include a screw 9 and a nut 10, a turbine 5 and a screw 9 are keyed together, the screw 9 is screwed with the nut 10, the telescopic rod 4 is connected and fixed with the nut 10, and the telescopic rod The element 4 is slidably connected to the telescopic sleeve 3 , and the screw 9 drives the telescopic rod element 4 to move through the nut 10 .
  • the drive motor 1 drives the worm 6 to rotate, the worm 6 drives the turbine 5 to rotate, the turbine 5 drives the screw 9 to rotate through the key, the screw 9 drives the nut 10 to move through the thread, and then drives the telescopic rod 4 through the nut 10 to rotate.
  • the telescopic sleeve 3 slides inside.
  • the telescopic rod member 4 is provided with a connecting portion for matching the connecting nut 10 , and two guide belts 11 are sleeved on the outside of the connecting portion along the axial distance between the telescopic sleeve and the telescopic rod member, and the telescopic sleeve is provided with two guide strips 11 .
  • a nylon support ring 12 is installed in the inner hole of the end of 3 to increase the wear resistance of the structure. Further, the output shaft of the drive motor 1 is designed to have a structure with two ends extending out, which can also ensure that the drive motor 1 can also brake or brake the wheels by manual braking or manual relief in the event of a power failure. ease.
  • the transmission assembly 120 can also be designed in the form of a reduction box, and the threaded assembly 130 can also be designed in the form of a lead screw matched with a threaded pipe.
  • the motor 1 can also drive the threaded tube to extend and retract relative to the lead screw.
  • the drive motor 1 can be a DC servo motor.
  • structural members such as balls and guide rails can also be arranged in the telescopic sleeve 3 .
  • the unfolding helix angle of the worm 6 is smaller than the friction angle of the contact between the worm gear and the worm, and the self-locking function of the transmission assembly can also be realized, thereby preventing the train from slipping when parked for a long time.
  • the worm 6 is a single-ended worm, so as to increase the function of one-way self-locking of the structure.
  • the telescopic sleeve 3 is connected with the transmission casing 2 , the transmission assembly 120 is arranged in the transmission casing 2 , the end of the transmission casing 2 is connected with the first connector 7 , and the end of the telescopic rod 4 A second connection head 8 is connected, and the electric brake cylinder can be connected to the basic braking device of the railway freight car through the first connection head 7 and the second connection head 8 .
  • FIG. 3 is a front view of a transmission housing in accordance with one or more embodiments of the present disclosure
  • FIG. 4 is a side view of a transmission housing in accordance with one or more embodiments of the present disclosure
  • FIG. 5 is a Schematic diagram of the structure of the transmission housing of one or more embodiments, with reference to FIGS.
  • the transmission housing 2 may include a cylindrical tube 201 and a rectangular tube 202 , and the turbine 5 is arranged in the In the cylindrical barrel 201, the worm 6 is arranged in the rectangular barrel 202, one side of the cylindrical barrel 201 is connected with the telescopic sleeve 3, the other side of the cylindrical barrel 201 is set open, and the other side of the cylindrical barrel 201 is set at the open opening There is a first cylinder head 13 , and the outer side of the first cylinder head 13 is connected with the first connecting head 7 .
  • FIG. 6 is a front view of a first cylinder head according to one or more embodiments of the present disclosure
  • FIG. 7 is a front view of a first cylinder head according to one or more embodiments of the present disclosure
  • FIG. 8 is a structural diagram of a first cylinder head according to one or more embodiments of the present disclosure.
  • the first connector 7 includes a bottom plate 702 and a side plate 701 .
  • the side plate 701 has two The two side plates 701 are oppositely arranged on the bottom plate 702, the two side plates 701 are oppositely arranged with pin holes 703, the bottom plate 702 of the first connector 7 is connected to the outside of the first cylinder head 13, and one or more
  • the structure of the second connecting head 8 is the same as that of the first connecting head 7 .
  • the end of the telescopic rod 4 is provided with a connecting shaft 21
  • the bottom plate 702 of the second connecting head 7 is connected with the connecting shaft 21 .
  • a mounting sleeve 14 is connected to the inner side of the first cylinder head 13 .
  • a sealing ring 15 is provided at the groove of the first cylinder head 13 .
  • an external thread portion 16 is provided on one side of the cylindrical cylinder 201, and an internal thread corresponding to the external thread portion 16 is provided on the inner surface of the telescopic sleeve 3,
  • the telescopic sleeve 3 is connected to one side of the cylindrical cylinder 201 by screwing into the external thread part 16 through the internal thread, and a first installation cavity 17 is also provided between one side of the cylindrical cylinder 201 and the external thread part 16, in order to reduce the rotation of the screw 9 resistance, two first bearings 18 are arranged in the cylindrical barrel 201, one of the first bearings 18 is arranged in the installation sleeve 14, the other first bearing 18 is arranged in the first installation cavity 17, and the screw 9 passes through the two The first bearing 18 rotates inside the cylinder 201 .
  • the rectangular barrel 202 is provided with an open top, the top opening of the rectangular barrel 202 is provided with a second cylinder head 19, and the worm 6 passes through the second cylinder head 19.
  • the cylinder head 19 is connected to the output end of the drive motor 1, the bottom surface of the second cylinder head 19 is provided with a second installation cavity, the bottom of the rectangular cylinder 202 is provided with a third installation cavity, and the rectangular cylinder 202 is provided with two second bearings 20 , one of the second bearings 20 is arranged in the second cavity, the other second bearing 20 is arranged in the third installation cavity, and the worm 6 rotates in the rectangular cylinder 202 through the two second bearings 20 .
  • a retaining ring 22 is sleeved at one end of the screw 9 , and the retaining ring 22 is inside the mounting sleeve 14 to prevent the two first bearings 18 and the turbine 5 from falling off the screw 9 .
  • a basic braking device which may include the electric brake cylinder of the railway freight car in this embodiment and two sets of brake beams, wherein the two sets of brake beams are respectively connected with brake shoes, The two sets of brake beams are respectively connected with the first connector 7 and the second connector 8 of the electric brake cylinder.
  • the electric brake cylinder of the railway freight car according to the embodiment of the present disclosure uses electric energy as the driving energy, avoids the problems of piston stroke change, gas leakage, unstable output, and weakened braking force caused by using compressed air as the driving energy, and has no problems. Pneumatic sealing requirements, the maintenance cycle of the brake device is longer.
  • the electric brake cylinder of the railway freight car according to the embodiment of the present disclosure also enables self-locking between the turbine 5 and the worm 6 through the structural design of the turbine 5 and the worm 6, so that the automatic parking function is integrated into the braking device. This function can not only cancel the structural design of the hand brake, but also reduce the workload of train inspection, so that the parking reliability of the vehicle is higher.
  • the manual braking or relieving function can also be realized, so that the basic braking device according to the embodiment of the present disclosure can be applicable to various working conditions.

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Abstract

一种铁路货车电制动缸，电制动缸包括驱动电机(1)、伸缩组件(110)以及传动组件(120)，伸缩组件(110)包括通过螺纹传动的伸缩套筒(3)与伸缩杆件(4)，传动组件(120)连接于伸缩杆件(4)与驱动电机(1)之间，解决了现有铁路货车通过压缩空气制动车轮时压缩空气易泄漏、缓解性能差、容易出现制动力减弱的技术问题。还涉及一种包括电制动缸的基础制动装置。

Description

一种铁路货车电制动缸及基础制动装置
相关申请的交叉引用
本申请要求于2020年12月7日提交、申请号为202011439540.1且名称为“一种铁路货车电制动缸及基础制动装置”的中国专利申请的优先权，其全部内容通过引用合并于此。
技术领域
本公开内容涉及铁路货车制动技术领域，特别涉及一种铁路货车电制动缸及基础制动装置。
背景技术
铁路货车是完成铁路货物运输任务的运载工具，而铁路货车的制动系统作为铁路货车实施减速和停车作用的执行结构，是铁路货车的重要组成部分，并且制动系统的技术状态直接影响到车辆运行的安全。现有技术中，通常采用的制动方法是空气制动，为保证密封的可靠性，空气制动缸的缸体、密封圈以及活塞等密封部件，均需要较高的密封性能，需经常进行检修，否则将导致制动缸漏泄故障，严重时会影响列车的正常运输。由于传统制动缸采用压力空气作为制动能量，制动缸制动时容积大小变化直接对制动力影响较大，为保持在运用后制动缸的制动活塞行程不会随着车轮、闸瓦的磨耗而增大，基础制动装置一般需采用闸瓦间隙调整器，导致系统结构复杂，同时由于运用后制动杠杆角度发生偏转，车辆各相关部件刚度、间隙产生变化，即使有闸瓦间隙调整器的作用，制动缸的制动活塞行程也会在运用后发生一定程度的变化，难以做到稳定输出，从而使得运用后的车辆会出现制动力变弱的问题，给列车运行特别是长大下坡道运行造成安全隐患。
另一方面，为保证车辆停车后不溜车，现有货车加装了手制动装置，以保证长时间停车期间，即使制动缸内没有压缩空气，车辆也能停驻，但手 制动装置存在需人工操作，现场工作量大，易出现误操作的缺点。
发明内容
针对上述现有技术存在的不足，提供了一种铁路货车电制动缸及基础制动装置，以解决现有技术中的制动系统结构复杂，采用空气制动易漏泄并且通过压缩空气制动车轮时容易出现制动力减弱的技术问题。
在本公开内容的一个方面，提供了一种铁路货车电制动缸，用于铁路货车的基础制动，包括：驱动电机，所述驱动电机输出驱动能量；伸缩组件，所述伸缩组件可以包括通过螺纹传动的伸缩套筒与伸缩杆件；传动组件，所述传动组件连接于所述伸缩杆件与所述驱动电机之间；其中，所述驱动电机驱动所述传动组件运行，所述传动组件带动所述伸缩杆件在所述伸缩套筒内伸缩运动。
在一些实施方式中，所述伸缩套筒内设置有螺纹组件，所述传动组件与所述螺纹组件相连接，所述螺纹组件与所述伸缩杆件相连接，所述伸缩杆件通过所述传动组件带动所述螺纹组件的运动在所述伸缩套筒内伸缩运动。
在一些实施方式中，所述传动组件可以包括涡轮与蜗杆，所述涡轮与所述蜗杆啮合连接，所述蜗杆与所述驱动电机的输出轴连接固定，所述涡轮与所述螺纹组件相连接。
在一些实施方式中，所述螺纹组件可以包括螺杆与螺母，所述螺杆与所述螺母螺纹连接，所述涡轮与所述螺杆键连接，所述伸缩杆件与所述螺母连接固定，所述伸缩杆件滑动连接于所述伸缩套筒内，所述螺杆通过所述螺母带动所述伸缩杆件运动。
在一些实施方式中，所述伸缩套筒连接有传动外壳，所述传动组件设在所述传动外壳内，所述传动外壳的端部连接有第一连接头，所述伸缩杆件的端部连接有第二连接头，所述电制动缸通过所述第一连接头和所述第二连接头连接在铁路货车的基础制动装置上。
在一些实施方式中，所述传动外壳包括相互贯穿的圆柱筒和矩形筒，所述涡轮设置在所述圆柱筒内，所述蜗杆设置在所述矩形筒内，所述涡轮与 所述蜗杆在所述传动外壳内啮合。
在一些实施方式中，所述圆柱筒的一端与所述伸缩套筒相连接，所述圆柱筒的另一端连接有第一缸盖，所述第一缸盖外侧与所述第一连接头连接。
在一些实施方式中，所述第一连接头包括底板以及侧板，所述侧板有两个，两个所述侧板相对设置在所述底板上，所述两个侧板上均相对开设有销孔，所述第一连接头的底板连接在所述第一缸盖外侧。
在一些实施方式中，所述驱动电机的输出轴的两端均伸出所述驱动电机的外部。
在本公开内容的另一方面，提供了一种基础制动装置，包括上述的铁路货车电制动缸以及两组制动梁，所述铁路货车电制动缸连接于两组所述制动梁之间。
附图说明
为了更清楚地说明本公开内容实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开内容的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1示出了依据本公开内容的一个或多个实施方式的的铁路货车电制动缸的正视图；
图2示出了依据本公开内容的一个或多个实施方式的铁路货车电制动缸的侧视图；
图3示出了依据本公开内容的一个或多个实施方式的传动外壳的正视图；
图4示出了依据本公开内容的一个或多个实施方式的传动外壳的侧视图；
图5示出了依据本公开内容的一个或多个实施方式的传动外壳的结构示意图；
图6示出了依据本公开内容的一个或多个实施方式的第一缸盖的正视图；
图7示出了依据本公开内容的一个或多个实施方式的第一缸盖的正视图；
图8示出了依据本公开内容的一个或多个实施方式的第一缸盖的结构图。
具体实施方式
下面将结合本公开内容实施例中的附图，对本公开内容实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开内容一部分实施例，而不是全部的实施例。基于本公开内容中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开内容保护的范围。
在本公开内容的一方面公开了一种铁路货车电制动缸，图1为依据本公开内容的一个或多个实施方式的铁路货车电制动缸的正视图，图2为依据本公开内容的一个或多个实施方式的铁路货车电制动缸的侧视图,结合图1及图2，本实施例的铁路货车电制动缸可以包括驱动电机1、伸缩组件110以及传动组件120。
结合图1及图2，本实施例中伸缩组件110可以包括通过螺纹传动的伸缩套筒3与伸缩杆件4，传动组件120与驱动电机1相连，通过驱动电机1驱动传动组件，从而传动组件120带动伸缩杆件4在伸缩套筒3内伸缩运动，相对于现有的铁路货车采用压缩空气作为驱动能量的方式，避免了空气制动缸的缸体、密封圈以及活塞等密封部件的加工制作，缩短了检修周期，解决了现有铁路货车压缩空气易漏泄及通过压缩空气制动车轮时容易出现制动力减弱的技术问题。
结合图1及图2，本实施例中伸缩套筒3内设置有螺纹组件130，传动组件120与螺纹组件130相连接，螺纹组件130与伸缩杆件4相连接，伸缩杆件4通过传动组件120带动螺纹组件130的运动在伸缩套筒3内伸缩运动。进一步地，传动组件120包括涡轮5与蜗杆6，涡轮5与蜗杆6啮合连接，蜗杆6与驱动电机的输出端连接固定，涡轮5与螺纹组件相连接。
结合图1及图2，本实施例中螺纹组件130可以包括螺杆9与螺母10， 涡轮5与螺杆9键连接，螺杆9与螺母10螺纹连接，伸缩杆件4与螺母10连接固定，伸缩杆件4滑动连接于伸缩套筒3内，螺杆9通过螺母10带动伸缩杆件4运动。当驱动电机1运行时，驱动电机1驱动蜗杆6转动，蜗杆6驱动涡轮5转动，涡轮5通过键带动螺杆9转动，螺杆9通过螺纹驱动螺母10移动，进而通过螺母10带动伸缩杆件4在伸缩套筒3内滑动。具体到本实施例中，伸缩杆件4上设有配合连接螺母10的连接部，连接部外侧沿伸缩套筒与伸缩杆件的轴向间隔套设有两条导向带11，并且伸缩套筒3的端部内孔中安装有尼龙支撑环12，以增加结构耐磨性。进一步地，将驱动电机1的输出轴设计为两端伸出的结构形式，还能够保证驱动电机1在失电的情况下，也可以通过手动制动或者手动缓解的方式对车轮进行制动或者缓解。
在一个或多个实施例中，传动组件120还可以设计为减速箱的结构形式，螺纹组件130还可以设计为丝杆与螺纹管相配合的结构形式，丝杠与减速箱相连接，通过驱动电机1同样能够驱动螺纹管相对于丝杠伸缩。驱动电机1可以选用直流伺服电机。同时，为了使伸缩杆件4能够在伸缩套筒3内定向的滑动，还可以在伸缩套筒3内设置滚珠、导轨等结构件。此外，蜗杆6的展开螺旋角小于蜗轮蜗杆接触的摩擦角，还能实现传动组件自锁的功能，从而能够避免列车在长时间驻停时发生溜车的现象。优选地，本实施例中蜗杆6为单头蜗杆，以增加结构单向自锁性的功能。
在一个或多个实施例中，伸缩套筒3连接有传动外壳2，传动组件120设在传动外壳2内，传动外壳2的端部连接有第一连接头7，伸缩杆件4的端部连接有第二连接头8，电制动缸可通过第一连接头7和第二连接头8连接在铁路货车的基础制动装置上。
图3为依据本公开内容的一个或多个实施方式的传动外壳的正视图，图4为依据本公开内容的一个或多个实施方式的传动外壳的侧视图，图5为依据本公开内容的一个或多个实施方式的传动外壳的结构示意图，结合图1、图2、图3、图4及图5，本实施例中传动外壳2可以包括圆柱筒201和矩形筒202，涡轮5设置在圆柱筒201内，蜗杆6设置在矩形筒202内，圆柱筒201一侧与伸缩套筒3连接，圆柱筒201的另一侧为敞口设置，圆柱筒201的另一侧的敞口处设置有第一缸盖13，第一缸盖13外侧与第一连接头7连接。
图6为依据本公开内容的一个或多个实施方式的第一缸盖的正视图，图7为依据本公开内容的一个或多个实施方式的第一缸盖的正视图，
图8为依据本公开内容的一个或多个实施方式的第一缸盖的结构图结合图6、图7及图8，第一连接头7包括底板702以及侧板701，侧板701有两个，两个侧板701相对设置在底板702上，两个侧板701上均相对设置有销孔703，第一连接头7的底板702连接在第一缸盖13外侧，在一个或多个实施例中，第二连接头8与第一连接头7的结构相同，进一步地，伸缩杆件4的端部设有连接轴21，第二连接头7的底板702与连接轴21连接。
在一个或多个实施例中，第一缸盖13内侧连接有一安装套筒14，为防止灰尘雨水进入圆柱筒201内，第一缸盖13的凹槽处设有密封圈15。
结合图1、图3及图6，在一个或多个实施例中，圆柱筒201一侧设有外螺纹部16，伸缩套筒3内表面设有与外螺纹部16相对应的内螺纹，伸缩套筒3通过内螺纹旋进外螺纹部16与圆柱筒201一侧相连，圆柱筒201一侧与外螺纹部16之间还设有第一安装空腔17，为了减小螺杆9的转动阻力，圆柱筒201内设有两个第一轴承18，其中一个第一轴承18设在安装套筒14内，另一个第一轴承18设置在第一安装空腔17内，螺杆9通过两个第一轴承18在圆柱筒201内转动。
结合图2、图4及图5，在一个或多个实施例中，矩形筒202为顶部敞口设置，矩形筒202的顶部敞口处设有第二缸盖19，蜗杆6穿过第二缸盖19与驱动电机1输出端相连，第二缸盖19的底面设有第二安装空腔，矩形筒202底部设有第三安装空腔，矩形筒202内设有两个第二轴承20，其中一个第二轴承20设置在第二空腔内，另一个第二轴承20设置在第三安装空腔内，蜗杆6通过两个第二轴承20在矩形筒202内转动。
在一个或多个实施例中，螺杆9的一端端部套设有挡圈22，挡圈22在安装套筒14内，防止两个第一轴承18、涡轮5从螺杆9上脱落。
在本公开内容的另一方面还公开了一种基础制动装置，其可以包含本实施例中的铁路货车电制动缸以及两组制动梁，两组制动梁分别连接有闸瓦，两组制动梁分别与电制动缸的第一连接头7和第二连接头8相连接，电制动缸通过驱动电机1、涡轮5、蜗杆6、螺杆9以及螺母10以机械的方式驱动伸 缩套筒3与伸缩杆件4之间的伸缩，来顶推两组制动梁使闸瓦制动或者缓解车轮，无需单独设计由于相关部件刚度、间隙产生变化而设置的闸瓦间隙调整器，由于制动装置整体通过机械方式制动，因此对制动装置各部件的制造要求的降低也更有利。
依据本公开内容实施例的铁路货车电制动缸利用电能作为驱动能量，避免了由于采用压缩空气作为驱动能量而引起的活塞行程变化、气体泄漏、输出不稳定以及制动力减弱等问题，并且无气动密封要求，制动装置的检修周期更长。并且，依据本公开内容实施例的铁路货车电制动缸还通过涡轮5与蜗杆6的结构设计，使涡轮5与蜗杆6之间能够自锁，从而在制动装置上集成了自动驻车的功能，不仅能够取消手制动机的结构设计，而且还减少了列检的作业量，使车辆的驻车可靠性更高。通过驱动电机伸出的输出轴，也能够实现手动制动或者缓解的功能，使依据本公开内容实施例的基础制动装置能够适用于多种工况。
以上所举实施例为本公开内容的较佳实施方式，仅用来方便说明本公开内容，并非对本公开内容作任何形式下的限制，任何所述技术领域中具有通常知识者，若在不脱离本公开内容所提技术特征的范围内，利用本公开内容所揭示技术内容所作出局部更动或修饰的等效实施例，并且未脱离本公开内容的技术特征内容，均仍属于本公开内容技术特征的范围内。

Claims (10)

  1. 一种铁路货车电制动缸，用于铁路货车的基础制动，包括：
    驱动电机，所述驱动电机输出驱动能量；
    伸缩组件，所述伸缩组件包括通过螺纹传动的伸缩套筒与伸缩杆件；以及，
    传动组件，所述传动组件连接于所述伸缩杆件与所述驱动电机之间；
    其中，所述驱动电机驱动所述传动组件运行，所述传动组件带动所述伸缩杆件在所述伸缩套筒内伸缩运动。
  2. 根据权利要求1所述的铁路货车电制动缸，其中，所述伸缩套筒内设置有螺纹组件，所述传动组件与所述螺纹组件相连接，所述螺纹组件与所述伸缩杆件相连接，所述伸缩杆件通过所述传动组件带动所述螺纹组件的运动在所述伸缩套筒内伸缩运动。
  3. 根据权利要求2所述的铁路货车转向架制动装置，其中，所述传动组件包括涡轮与蜗杆，所述涡轮与所述蜗杆啮合连接，所述蜗杆与所述驱动电机的输出轴连接固定，所述涡轮与所述螺纹组件相连接。
  4. 根据权利要求3所述的铁路货车电制动缸，其中，所述螺纹组件包括螺杆与螺母，所述螺杆与所述螺母螺纹连接，所述涡轮与所述螺杆键连接，所述伸缩杆件与所述螺母连接固定，所述伸缩杆件滑动连接于所述伸缩套筒内，所述螺杆通过所述螺母带动所述伸缩杆件运动。
  5. 根据权利要求3所述的铁路货车电制动缸，其中，所述伸缩套筒连接有传动外壳，所述传动组件设在所述传动外壳内，所述传动外壳的端部连接有第一连接头，所述伸缩杆件的端部连接有第二连接头，所述电制动缸通过所述第一连接头和所述第二连接头连接在铁路货车的基础制动装置上。
  6. 根据权利要求5所述的铁路货车电制动缸，其中，所述传动外壳包括相互贯穿的圆柱筒和矩形筒，所述涡轮设置在所述圆柱筒内，所述蜗杆设置在所述矩形筒内，所述涡轮与所述蜗杆在所述传动外壳内啮合。
  7. 根据权利要求6所述的铁路货车电制动缸，其中，所述圆柱筒的一端与所述伸缩套筒相连接，所述圆柱筒的另一端连接有第一缸盖，所述第一 缸盖外侧与所述第一连接头连接。
  8. 根据权利要求7所述的铁路货车电制动缸，其中，所述第一连接头包括底板以及侧板，所述侧板有两个，两个所述侧板相对设置在所述底板上，所述两个侧板上均相对开设有销孔，所述第一连接头的底板连接在所述第一缸盖外侧。
  9. 根据权利要求1-8中任一项所述的铁路货车电制动缸，其中，所述驱动电机的输出轴的两端均伸出所述驱动电机的外部。
  10. 一种基础制动装置，包括权利要求1至9中任一项所述的铁路货车电制动缸以及两组制动梁，所述铁路货车电制动缸连接于两组所述制动梁之间。
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