WO2024066484A1 - 一种受电弓及车辆系统 - Google Patents

一种受电弓及车辆系统 Download PDF

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Publication number
WO2024066484A1
WO2024066484A1 PCT/CN2023/100143 CN2023100143W WO2024066484A1 WO 2024066484 A1 WO2024066484 A1 WO 2024066484A1 CN 2023100143 W CN2023100143 W CN 2023100143W WO 2024066484 A1 WO2024066484 A1 WO 2024066484A1
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WO
WIPO (PCT)
Prior art keywords
pantograph
end ring
rod
pull rod
sleeve
Prior art date
Application number
PCT/CN2023/100143
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English (en)
French (fr)
Inventor
王喜亮
吴彩秀
龚文平
张艳芳
蒋聪健
孙善峰
庄舜雄
Original Assignee
中车株洲电力机车有限公司
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Publication date
Application filed by 中车株洲电力机车有限公司 filed Critical 中车株洲电力机车有限公司
Publication of WO2024066484A1 publication Critical patent/WO2024066484A1/zh

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Classifications

    • 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
    • B60L5/20—Details of contact bow

Definitions

  • the present invention relates to the field of rail transit technology, and more specifically, to a pantograph.
  • the present invention also relates to a vehicle system including the pantograph.
  • the pantograph is a key component of rail transit locomotives and vehicles. It can contact the overhead contact network and draw current to ensure the safe operation of locomotives and vehicles.
  • the commonly used pantograph structure is a four-bar mechanism, which has a simple structure and is easy to manufacture.
  • the pull rod is a key component of the pantograph, which can pull up the upper frame and the bow head to a certain height.
  • the pull rod is usually composed of a stainless steel pipe and end rings with bearings at both ends.
  • an object of the present invention is to provide a pantograph, comprising a pull rod assembly with an anti-dropping device, wherein the anti-dropping device of the pull rod is formed by connecting and fixing the end ring assembly welding and the screw rod assembly welding. When the pull ring breaks, the anti-dropping device can pull the two ends of the pull rod, thereby protecting the pantograph pull rod.
  • Another object of the present invention is to provide a vehicle system including the pantograph described above.
  • the present invention provides the following technical solutions:
  • a pantograph includes a pull rod assembly; the pull rod assembly includes a pull rod assembly weld and an end ring assembly weld located at the end of the pull rod assembly weld; the end ring assembly weld includes an end ring with a screw rod and a threaded seat slidably connected to the screw rod; the pull rod assembly weld includes a pull rod, a limit seat fixed to the end of the pull rod, and a sleeve nested with the outer ring of the limit seat; the screw rod and the pull rod are threadedly connected, and the threaded seat is threadedly connected to the sleeve.
  • the screw rod is threadedly connected to the inner hole of the pull rod, and the threaded seat is threadedly connected to the inner hole of the sleeve.
  • the pull rod assembly further includes a nut for fixing the screw rod and the pull rod and a limit screw for fixing the threaded seat and the sleeve.
  • the sleeve and the limiting seat are both provided with through holes in the radial direction for matching with the limiting screws.
  • both ends of the tie rod assembly weld are provided with end ring assembly welds, and the two groups of end ring assembly welds are symmetrically arranged about the mid-vertical line of the tie rod assembly weld.
  • the end ring assembly welding further comprises a U-shaped plate welded to the threaded seat, and the U-shaped plate cooperates with the threaded seat to cover the outer circumference of the circular ring of the end ring.
  • the spacing between the U-shaped plate and the end ring is greater than 2 mm.
  • the pantograph further includes a stress sensor, and the stress sensor is connected to the surface of the U-shaped plate.
  • the pantograph also includes an alarm device and a controller, the stress sensor is connected to the controller, and the controller is connected to the alarm device.
  • the present invention also provides a vehicle system, comprising the pantograph described in any one of the above.
  • the pantograph provided by the present invention includes a pull rod assembly with an anti-drop device, wherein the end ring assembly welding and the screw assembly welding are connected and fixed by two groups of threads to form the pull rod anti-drop device, the screw rod is threadedly connected to the pull rod, and the threaded seat is threadedly connected to the sleeve.
  • the threaded seat is still fixedly connected to the sleeve, which can support and fix the pull rod, thereby realizing the protection of the pantograph.
  • FIG1 is a schematic structural diagram of a pantograph provided by the present invention.
  • FIG2 is a schematic structural diagram of a pull rod assembly provided by the present invention.
  • FIG3 is a cross-sectional view of a pull rod assembly provided by the present invention.
  • FIG4 is a schematic structural diagram of the end ring assembly welding provided by the present invention.
  • FIG5 is a cross-sectional view of the end ring assembly welding provided by the present invention.
  • FIG6 is a schematic diagram of the structure of the tie rod assembly welding provided by the present invention.
  • FIG. 7 is a cross-sectional view of the tie rod assembly welding provided by the present invention.
  • Tie rod assembly 1 chassis assembly 2, bow head 3, lower arm assembly 4, upper frame assembly 5;
  • End ring 111 threaded seat 112 , U-shaped plate 113 , pull rod 121 , limit seat 122 , sleeve 123 , screw rod 1111 .
  • the core of the present invention is to provide a pantograph, including a rod assembly 1 with an anti-dropout device, the anti-dropout device of the rod 121 is formed by connecting and fixing the end ring assembly weld 11 and the screw assembly weld 12, when the pull ring is broken, the anti-dropout device can pull the two ends of the rod 121, thereby protecting the rod 121 of the pantograph.
  • Another core of the present invention is to provide a vehicle system including the above pantograph.
  • a pantograph provided by the present invention mainly includes a pull rod assembly 1, a base frame assembly 2, a bow head 3, a lower arm assembly 4, and an upper frame assembly 5.
  • the pull rod assembly 1 is the main structure, which is used to connect the base frame assembly 2 and the upper frame assembly 5.
  • Figure 1 is a schematic diagram of the pantograph structure.
  • one end of the tie rod assembly 1 is fixed to the base frame assembly 2, and the other end of the tie rod assembly 1 is fixed to the upper frame assembly 5.
  • the tie rod assembly 1 is fixedly connected with the base frame assembly 2 and the upper frame assembly 5 to pull up the upper frame assembly 5 together with the pantograph head 3.
  • the tie rod assembly 1 is usually fixed to the base frame assembly 2 and the upper frame assembly 5 by through-bolts.
  • the above-mentioned chassis assembly 2, bow head 3, lower arm assembly 4, and upper frame assembly 5 can also be other structures, and accordingly, the pull rod assembly 1 needs to achieve fixed connection of the corresponding connected parts.
  • the tie rod assembly 1 includes a tie rod assembly weld 12 and an end ring assembly weld 11 located at the end of the tie rod assembly weld 12; the end ring assembly weld 11 includes an end ring 111 having a screw rod 1111, a screw rod 1111 slidably connected to the screw rod 1111, and a screw rod 1111 slidably connected to the screw rod 1111.
  • the threaded seat 112; the pull rod assembly welding 12 includes a pull rod 121, a limit seat 122 fixed to the end of the pull rod 121, and a sleeve 123 nested with the outer ring of the limit seat 122; the screw 1111 and the pull rod 121 are threadedly connected, and the threaded seat 112 is threadedly connected to the sleeve 123.
  • the tie rod assembly 1 includes an end ring weld 11 and a tie rod weld 12, wherein the end ring weld 11 is provided at the end of the tie rod weld 12.
  • One or two end ring welds 11 may be connected to the end of the tie rod weld 12.
  • both ends of the pull rod assembly 1 are also connected to self-aligning ball bearings 13 for connecting the upper frame assembly 5 and the base frame assembly 2 .
  • the end ring 111 is a circular ring structure, and a screw rod 1111 is provided on its outer side along the axial extension direction.
  • the threaded seat 112 is slidably connected to the screw rod 1111, that is, the screw rod 1111 passes through the through hole of the threaded seat 112 and can be moved to adapt to the installation process, as shown in FIG. 4 .
  • the end of the pull rod 121 is fixedly connected to the limit seat 122, and the pull rod 121 is a common rod structure, that is, the limit seat 122 is fixedly connected to the outer peripheral edge of the pull rod 121.
  • the limit seat 122 By setting the limit seat 122, the movement of the sleeve 123 relative to the pull rod 121 can be limited.
  • the above-mentioned fixed connection can be welding, or other fixing methods.
  • the outer ring of the limit seat 122 is embedded with a sleeve 123, and there can be a snap-fit relationship between the sleeve 123 and the limit seat 122.
  • the sleeve 123 is directly installed from both ends of the pull rod 121 in advance, and then the limit seat 122 is fixed.
  • the fixing method of the limit seat 122 and the pull rod 121 can be welding. In this way, the sleeve 123 can only slide relatively along one side of the limit seat 122, which limits the sleeve 123 from sliding down from both ends of the pull rod 121, as shown in Figure 5.
  • the rear end of the limit seat 122 is provided with a protrusion, which can be snapped into the inner wall of the sleeve 123, limiting the sleeve 123 from sliding to the outside of the pull rod 121.
  • the screw 1111 of the end ring 111 is threadedly connected to the tie rod 121, and the threaded seat 112 is threadedly connected to the sleeve 123.
  • the end ring weld 11 and the tie rod weld 12 are fixedly connected through two sets of threaded connections, and even if the end ring 111 is broken, the threaded seat 112 at the outer end of the end ring 111 is still fixedly connected to the sleeve 123, supporting and fixing the tie rod 121, and maintaining the overall stability of the pantograph.
  • the pantograph is fixedly connected with the end ring assembly weld 11 and the tie rod assembly weld 12 by two sets of threads.
  • the threaded seat 112 at the outer end of the end ring 111 can still be fixedly connected with the sleeve 123, and the two ends of the tie rod 121 can be supported by the fixing of the sleeve 123 to prevent the end ring 111 from breaking. This causes the pull rod 121 to fall off, causing danger.
  • the screw 1111 of the end ring 111 is threadedly connected with the inner hole of the tie rod 121, that is, the screw 1111 of the end ring 111 has an external thread, and the screw 1111 is inserted into the inner hole of the tie rod 121 and is fixedly connected with the inner thread of the tie rod 121.
  • the threaded seat 112 is threadedly connected with the inner hole of the sleeve 123, that is, the threaded seat 112 is provided with an external thread, which can be screwed into the inner hole of the sleeve 123 and fixedly connected thereto.
  • the base on which the threaded seat 112 and the end ring 111 are sleeved may be a square bottom plate with holes, or may be a bottom plate with holes in other shapes.
  • the distance that the threaded seat 112 is screwed into the inner hole of the sleeve 123 can be determined according to actual conditions, as long as a stable connection is ensured.
  • threads may be provided on the outer side of the sleeve 123 to be threadedly connected to the inner hole of the threaded seat 112 , so that two sets of threaded connections can be formed between the end ring assembly weld 11 and the screw assembly weld 12 .
  • the tie rod assembly 1 further includes a nut 15 for fixing the screw rod 1111 and the tie rod 121 and a limit screw 17 for fixing the threaded seat 112 and the sleeve 123.
  • the nut 15 is a hexagonal nut, but is not limited to a hexagonal nut, as long as it can be securely connected.
  • a washer 14 should be provided to disperse the pressure of the nut 15 on the pull rod 121 to prevent deformation of the connecting surface of the pull rod 121.
  • the washer 14 is preferably a flat elastic washer, or a metal ring, and the specific number can be single or multiple.
  • the limit screw 17 is inserted into the sleeve 123 to fix the sleeve 123 in a direction perpendicular to the cylinder wall to prevent it from moving or rotating.
  • a limiting washer 16 may be provided in cooperation with the limiting screw 17 , which is also used to disperse the pressure of the limiting screw 17 on the sleeve 123 .
  • the thickness and material of the gasket 14 and the limiting gasket 16 are determined according to actual conditions and are not limited to metal rings or elastic gaskets.
  • the sleeve 123 and the limiting seat 122 are provided with radial A through hole that cooperates with the limit screw 17.
  • the limit screw 17 When fixing the sleeve 123, the limit screw 17 is directly inserted into the through holes of the sleeve 123 and the limit seat 122. Under the nested relationship between the limit seat 122 and the sleeve 123 and the joint action of the limit screw 17, the axial movement and rotation of the sleeve 123 are simultaneously limited, preventing the sleeve 123 from being removed from the pull rod 121, making the fixation of the end ring assembly weld 11 and the pull rod assembly weld 12 more stable and safe.
  • the shape of the through hole may be square, waist-shaped or circular.
  • the number of the through hole is at least one, and may be multiple.
  • the through hole is arranged in an axial direction, preferably, in the axial direction of the middle of the sleeve 123 and the limiting seat 122, or in other positions.
  • end ring welds 11 are provided at both ends of the tie rod weld 12 , and the two groups of end ring welds 11 are symmetrically arranged about the perpendicular midline of the tie rod weld 12 .
  • the above-mentioned symmetrical arrangement can also have a symmetrical relationship in angle between the two end ring welds 11 and the tie rod weld 12 .
  • End ring assembly welds 11 are provided at both ends of the tie rod assembly weld 12 to ensure that both ends of the tie rod 121 can be supported when the end ring 111 is broken, thereby further protecting the pantograph.
  • the end ring 11 further includes a U-shaped plate 113 welded to the threaded seat 112 , and the U-shaped plate 113 cooperates with the threaded seat 112 to cover the outer ring of the circular ring of the end ring 111 .
  • the U-shaped plate 113 and the threaded seat 112 form an annular structure, and the circular ring of the end ring 111 is wrapped inside the annular structure; the U-shaped plate 113 and the threaded seat 112 are welded, and the base of the threaded seat 112 is arranged at the end of the open end of the U-shaped plate 113, and the end of the open end is the end opposite to the arc end face of the U-shaped plate 113.
  • the threaded seat 112 is fixedly connected to the U-shaped plate 113 , and the threaded seat 112 is threadedly connected to the sleeve 123 . Furthermore, the sleeve 123 is fixedly connected to the U-shaped plate 113 .
  • the distance between the U-shaped plate 113 and the end ring 111 is greater than 2 mm.
  • the spacing between the two is to ensure that a certain gap is reserved between the arc end surface of the U-shaped plate 113 and the arc outer surface of the end ring 111, so that there is a certain relative movement space between the U-shaped plate 113, the threaded seat 112 and the end ring 111 after welding.
  • the relative movement here refers to The end ring 111 can move relative to the integral structure welded between the U-shaped plate 113 and the threaded seat 112 .
  • the pantograph is threadedly connected through the end ring 111 and the tie rod 121, and fixed by the washer 14 and the nut 15; the end ring assembly weld 11 and the tie rod assembly weld 12 are firmly fixed and connected through the threaded seat 112 and the sleeve 123, and fixed by the limit washer 16 and the limit screw 17.
  • the end ring 111 is broken, the fixed connection between the threaded seat 112 and the sleeve 123 can continue to support the tie rod 121, thereby protecting the pantograph.
  • the pantograph further includes a stress sensor 18, and the stress sensor 18 is connected to the surface of the U-shaped plate 113.
  • the stress sensor 18 can be used to detect the pressure change of the U-shaped plate 113 in real time, and the signal of the stress sensor 18 can be transmitted to the outside, so that the failure of the pull rod 121 of the pantograph can be discovered in time, and the signal can be specifically transmitted to the controller or display, etc., so as to be processed in time.
  • the stress sensor 18 may be a mechanical or electronic sensor.
  • the stress sensor 18 may be adhered to the U-shaped plate 113, such as a thin film sensor; or may be welded or detachably fixed to the U-shaped plate 113, such as a piezoelectric pressure sensor.
  • the above structure further includes an alarm device and a controller, the stress sensor 18 is connected to the controller, and the controller is connected to the alarm device.
  • the end ring 111 is broken, the U-shaped plate 113 installed on the outer ring of the end ring 111 will bear the pressure of the pull rod 121, the stress sensor 18 will receive the pressure signal and report it to the controller, and the controller will control the alarm device to alarm, so as to take timely measures to protect the pantograph.
  • a pantograph with a pull rod anti-detachment device is provided above, and the fault detection method of the above pantograph will be described in detail below.
  • the U-shaped plate 113 installed on the outer ring of the end ring 111 will bear the pressure of the pull rod 121, and the stress sensor 18 will receive the pressure signal and report it to the controller.
  • the controller controls the alarm device to sound an alarm, thereby timely lowering the pantograph for protection.
  • the present invention also provides a vehicle system including the pantograph disclosed in the above-mentioned embodiment, specifically including a pantograph, a vehicle, an automatic guidance system, a vehicle signal control system, etc.

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

Abstract

一种受电弓及车辆系统，受电弓包括拉杆总成（1）；拉杆总成（1）包括拉杆组焊（12）和位于拉杆组焊（12）端部的端环组焊（11）；端环组焊（11）包括具有螺杆（1111）的端环（111）、与螺杆（1111）可滑动连接的螺纹座（112）；拉杆组焊（12）包括拉杆（121）、与拉杆（121）的端部固定的限位座（122）、与限位座（122）的外圈嵌套的套筒（123）；螺杆（1111）和拉杆（121）螺纹连接，螺纹座（112）与套筒（123）螺纹连接。

Description

一种受电弓及车辆系统
本申请要求于2022年09月28日提交中国专利局、申请号为202211190858.X、发明名称为“一种受电弓及车辆系统”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
本发明涉及轨道交通技术领域，更具体地说，涉及一种受电弓。此外，本发明还涉及一种包括上述受电弓的车辆系统。
背景技术
受电弓是轨道交通机车车辆的关键部件，可与架空接触网接触并取流，保证机车车辆的安全运行。
目前常用的受电弓结构为四杆机构，四杆机构结构简单，制造方便。其中，拉杆是受电弓的关键部件，可以把上框架连带弓头拉起，达到一定的升弓高度。拉杆通常由不锈钢钢管以及两端装有轴承的端环组成。当受电弓受到接触网异常冲击时，容易出现端环断裂情况，会导致上框架总成绕下臂杆旋转与接触网相接触，破坏接触网，影响交通安全。
综上所述，如何提供一种稳固的受电弓，是目前本领域技术人员亟待解决的问题。
发明内容
有鉴于此，本发明的目的是提供一种受电弓，包括带有防脱装置的拉杆总成，通过端环组焊和螺杆组焊之间的连接固定形成拉杆的防脱装置，当拉环断裂时，防脱装置可以拉住拉杆两端，从而实现对受电弓拉杆的保护。
本发明的另一目的是提供一种包括上述受电弓的车辆系统。
为了实现上述目的，本发明提供如下技术方案：
一种受电弓，包括拉杆总成；拉杆总成包括拉杆组焊和位于拉杆组焊端部的端环组焊；端环组焊包括具有螺杆的端环、与螺杆可滑动连接的螺纹座；拉杆组焊包括拉杆、与拉杆的端部固定的限位座、与限位座的外圈嵌套的套筒；螺杆和拉杆螺纹连接，螺纹座与套筒螺纹连接。
优选的，螺杆与拉杆的内孔螺纹连接，螺纹座与套筒的内孔螺纹连接。
优选的，拉杆总成还包括用于将螺杆与拉杆固定的螺母以及用于将螺纹座与套筒固定的限位螺钉。
优选的，套筒和限位座的径向均设有与限位螺钉配合的通孔。
优选的，拉杆组焊的两端均设置有端环组焊，且两组端环组焊关于拉杆组焊的中垂线对称设置。
优选的，端环组焊还包括与螺纹座焊接的U型板，U型板与螺纹座配合罩设在端环的圆环的外周。
优选的，U型板和端环之间的间距大于2mm。
优选的，受电弓还包括应力传感器，应力传感器连接于U型板的表面。
优选的，受电弓还包括报警装置、控制器，应力传感器连接控制器，控制器连接报警装置。
本发明还提供一种车辆系统，包括上述任意一项所述的受电弓。
本发明所提供的受电弓包括带有防脱装置的拉杆总成，其中，端环组焊和螺杆组焊通过两组螺纹连接固定形成拉杆的防脱装置，螺杆和拉杆螺纹连接，螺纹座与套筒螺纹连接。在使用过程中，当端环断裂时，螺纹座依然与套筒固定连接，可以支撑并固定拉杆，从而实现对受电弓和保护。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术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发明的实施例，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，还可以根据提供的附图获得其他的附图。
图1为本发明所提供的受电弓的结构示意图；
图2为本发明所提供的拉杆总成的结构示意图；
图3为本发明所提供的拉杆总成的剖视图；
图4为本发明所提供的端环组焊的结构示意图；
图5为本发明所提供的端环组焊的剖视图；
图6是本发明所提供的拉杆组焊的结构示意图；
图7是本发明所提供的拉杆组焊的剖视图。
其中：
拉杆总成1、底架总成2、弓头3、下臂杆总成4、上框架总成5；
端环组焊11、拉杆组焊12、调心球轴承13、垫圈14、螺母15、限位垫圈16、限位螺钉17、传感器18；
端环111、螺纹座112、U型板113、拉杆121、限位座122、套筒123、螺杆1111。
具体实施方式
下面将结合本发明实施例中的附图，对本发明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发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，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，都属于本发明保护的范围。
本发明的核心是提供一种受电弓，包括带有防脱装置的拉杆总成1，通过端环组焊11和螺杆组焊12之间的连接固定形成拉杆121的防脱装置，当拉环断裂时，防脱装置可以拉住拉杆121两端，从而实现对受电弓的拉杆121的保护。本发明的另一核心是提供一种包括上述受电弓的车辆系统。
本发明提供的一种受电弓主要包括拉杆总成1，还包括底架总成2、弓头3、下臂杆总成4、上框架总成5。其中拉杆总成1为主要结构，其用于连接底架总成2和上框架总成5。
请参考图1，图1为受电弓结构示意图。实际工作过程中，拉杆总成1的一端固定在底架总成2上，拉杆总成1的另一端固定在上框架总成5上，在受电弓升起时，拉杆总成1通过与底架总成2和上框架总成5的固定连接，把上框架总成5连带弓头3拉起。其中，拉杆总成1与底架总成2、上框架总成5的固定方式通常为对穿螺栓。
可选的，在不同实现方式中，上述底架总成2、弓头3、下臂杆总成4、上框架总成5也可以为其他结构，相应的，拉杆总成1需要将对应连接的部分实现固定连接。
拉杆总成1包括拉杆组焊12和位于拉杆组焊12端部的端环组焊11；端环组焊11包括具有螺杆1111的端环111、与螺杆1111可滑动连接的螺 纹座112；拉杆组焊12包括拉杆121、与拉杆121的端部固定的限位座122、与限位座122的外圈嵌套的套筒123；螺杆1111和拉杆121螺纹连接，螺纹座112与套筒123螺纹连接。
在本实施例中，拉杆总成1包括端环组焊11、拉杆组焊12，其中端环组焊11设于拉杆组焊12的端部。端环组焊11可以有一组与拉杆组焊12的端部进行连接，也可以有两组与拉杆组焊12的端部进行连接。
可选的，拉杆总成1的两端还连接有调心球轴承13，用来连接上框架总成5和底架总成2。
端环111是一种圆环结构，且其外侧沿轴向延伸方向有螺杆1111的结构形式，螺纹座112可滑动地连接螺杆1111，也就是说，螺杆1111穿过螺纹座112的通孔，并可以进行移动，以适应安装过程，具体可见图4所示。
拉杆121的端部固定连接限位座122，拉杆121为常见的杆件结构，也就是说限位座122固定连接在拉杆121的外周边缘上。通过限位座122的设定，可限制套筒123相对于拉杆121的移动。可选的，上述固定连接可以为焊接，或其他固定方式。
限位座122的外圈嵌套有套筒123，套筒123与限位座122之间可以为卡接关系，套筒123预先直接从拉杆121的两端装进去，再固定限位座122。限位座122与拉杆121的固定方式可以为焊接。如此，使套筒123仅可以沿着限位座122的一侧相对滑动，限制了套筒123从拉杆121的两端滑落下来，具体可见图5所示。限位座122的后端设有凸起，可以卡接进套筒123的内壁，限制了套筒123向拉杆121外侧滑落。
请参考图2和图3，端环111的螺杆1111和拉杆121螺纹连接，螺纹座112与套筒123螺纹连接。也就是说，端环组焊11与拉杆组焊12通过两组螺纹连接固定连接，即使端环111断裂，端环111外端的螺纹座112也依然与套筒123固定连接，支撑并固定拉杆121，保持受电弓整体的稳固性。
上述受电弓通过两组螺纹将端环组焊11与拉杆组焊12固定连接，在端环111断裂时，端环111外端的螺纹座112仍然能与套筒123固定连接，拉杆121的两端会在套筒123的固定下得以支撑，防止由于端环111断裂 造成拉杆121脱落，造成危险。
在上述实施例的基础上，端环111的螺杆1111与拉杆121的内孔螺纹连接，也就是说，端环111的螺杆1111上有外螺纹，螺杆1111插入拉杆121的内孔与拉杆121的内螺纹进行配合固定连接。螺纹座112与套筒123的内孔螺纹连接，也就是说，螺纹座112设有外螺纹，可以旋进套筒123的内孔与其固定连接。
可选的，螺纹座112与端环111套接的底座可以为带孔的方形底板，也可以为其他形状带孔的底板。
可选的，螺纹座112旋进套筒123的内孔的距离可依据实际情况而定，保证稳固连接即可。
可选的，也可以在套筒123的外侧设螺纹，与螺纹座112的内孔进行螺纹连接，能使端环组焊11和螺杆组焊12之间形成两组螺纹连接即可。
在上述任一实施例的基础之上，拉杆总成1还包括用于将螺杆1111与拉杆121固定的螺母15以及用来将螺纹座112与套筒123固定的限位螺钉17。在端环111的螺杆1111与拉杆121进行螺纹连接固定后，在拉杆121的两侧将螺母15与端环111的螺杆1111旋紧，从而限制了拉杆121的长度，也限制了端环111和拉杆121的移动。
优选的，螺母15为六角螺母，但不仅仅限于六角螺母，可以牢固连接即可。
此外，还应设有垫圈14来分散螺母15对拉杆121的压力，防止拉杆121的连接表面变形。垫圈14优选为扁平形的弹性垫圈，也可以为金属环，具体的个数可以为单个或者可以为多个。
在螺纹座112与套筒123进行螺纹连接固定后，将限位螺钉17插入套筒123中，将套筒123在垂直于筒壁的方向上固定，防止其移动或转动。
此外，与限位螺钉17配合的还可以有限位垫圈16，同样用于分散限位螺钉17对套筒123的压力。
可选的，垫圈14和限位垫圈16的厚度以及材料据实际情况而定，不局限于金属环或弹性垫片。
在上述任一实施例的基础之上，套筒123和限位座122的径向均设有 与限位螺钉17配合的通孔。
限位螺钉17在固定套筒123时，直接插入套筒123和限位座122的通孔，在限位座122与套筒123的嵌套关系以及限位螺钉17的共同作用下，同时限制套筒123的轴向移动以及旋转，防止套筒123从拉杆121上取出，使端环组焊11和拉杆组焊12的固定更加稳固安全。
可选的，通孔的形状可以为方形、腰形或圆形。
可选的，通孔的个数至少为一个，可以为多个。
可选的，通孔的设置方向为轴向，优选地，设置在套筒123和限位座122的中部的轴向，也可为其他位置。
在上述任一实施例的基础之上，拉杆组焊12的两端均设置有端环组焊11，且两组端环组焊11关于拉杆组焊12的中垂线对称设置。
上述对称设置除了在位置上的对称外，两个端环组焊11关于拉杆组焊12的角度也可以为对称关系。
在拉杆组焊12的两端设置端环组焊11，可以保证在端环111断裂时拉杆121的两端均能被支撑起来，进一步保护受电弓。
在上述任一实施例的基础之上，端环11还包括与螺纹座112焊接的U型板113，U型板113与螺纹座112配合罩设于端环111的圆环的外圈。
请参考图4和图5，U型板113与螺纹座112围成环形结构，端环111的圆环包裹在围成的环形结构的内部；而U型板113与螺纹座112焊接，螺纹座112的底座设在U型板113开口端的末端，开口端的末端即与U型板113的圆弧端面相对的一端，此外，螺纹座112与U型板113之间有一定的焊接孔隙。
以上，螺纹座112与U型板113固定连接，螺纹座112又与套筒123螺纹连接，进一步地，套筒123与U型板113固定连接。
在上述任一实施例的基础之上，U型板113和端环111之间的间距大于2mm。
设置两者之间的间距是为了保证U型板113的圆弧端面与端环111的圆弧外表面预留一定间隙，从而使焊接后的U型板113和螺纹座112与端环111之间具有一定的相对运动空间。需要说明的是，此处的相对运动指 的是端环111可以相对于U型板113和螺纹座112焊接的整体结构运动。
请参考图3，上述受电弓通过端环111和拉杆121螺纹连接，并通过垫圈14和螺母15进行固定；通过螺纹座112与套筒123螺纹连接，并通过限位垫圈16和限位螺钉17固定，将端环组焊11和拉杆组焊12牢固地固定连接。在端环111断裂后，螺纹座112与套筒123的固定连接还可以继续支撑拉杆121，起到保护受电弓的作用。
在上述任一实施例的基础之上，受电弓还包括应力传感器18，应力传感器18连接于U型板113的表面。应力传感器18可用来实时检测U型板113的压力变化，可以将应力传感器18的信号向外部传输，能及时地发现受电弓的拉杆121的故障情况，具体将信号传递给控制器或显示器等，以便及时处理。
可选的，应力传感器18可以为机械式或电子式传感器。
可选的，应力传感器18可以粘贴在U型板113上，如薄膜传感器；也可以焊接或可拆卸地固定在U型板113上，如压电压力传感器。
在上述任一实施例的基础之上，上述结构还包括报警装置、控制器，应力传感器18连接控制器，控制器连接报警装置。在端环111断裂时，安装在端环111的圆环外圈的U型板113将承受拉杆121的压力，应力传感器18将会接收到压力信号并报给控制器，控制器控制报警装置报警，从而及时地采取措施对受电弓进行保护。
以上，提供了一种具有拉杆防脱装置的受电弓，下面将对上述受电弓的故障检测方法进行详细叙述。
在拉杆121正常工作拉起弓头4时，U型板113与拉杆121不接触，拉杆121的压力由端环111承受，与U型板113的表面焊接的应力传感器18感受不到力的变化，此时受电弓正常运行；
在端环111断裂时，安装在端环111的圆环外圈的U型板113将承受拉杆121的压力，应力传感器18将会接收到压力信号并报给控制器，控制器控制报警装置报警，从而及时地对受电弓进行降弓保护。
除了上述受电弓，本发明还提供一种包括上述实施例公开的受电弓的车辆系统，具体包括受电弓、车辆、自动导向系统、车辆信号控制系统等。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。
以上对本发明所提供的一种受电弓及车辆系统进行了详细介绍。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. 一种受电弓，包括拉杆总成(1)；所述拉杆总成(1)包括拉杆组焊(12)和位于所述拉杆组焊(12)的端部的端环组焊(11)；其特征在于，所述端环组焊(11)包括具有螺杆(1111)的端环(111)、与所述螺杆(1111)可滑动连接的螺纹座(112)；所述拉杆组焊(12)包括拉杆(121)、与所述拉杆(121)的端部固定的限位座(122)、与所述限位座(122)的外圈嵌套的套筒(123)；所述螺杆(1111)和所述拉杆(121)螺纹连接，所述螺纹座(112)与所述套筒(123)螺纹连接。
  2. 根据权利要求1所述的受电弓，其特征在于，所述螺杆(1111)与所述拉杆(121)的内孔螺纹连接；所述螺纹座(112)与所述套筒(123)的内孔螺纹连接。
  3. 根据权利要求2所述的受电弓，其特征在于，所述拉杆总成(1)还包括用于将所述螺杆(1111)与所述拉杆(121)固定的螺母(15)以及用于将所述螺纹座(112)与所述套筒(123)固定的限位螺钉(17)。
  4. 根据权利要求3所述的受电弓，其特征在于，所述套筒(123)和所述限位座(122)的径向均设有用于与所述限位螺钉(17)配合的通孔。
  5. 根据权利要求1所述的受电弓，其特征在于，所述拉杆组焊(12)的两端均设置有所述端环组焊(11)，且两组所述的端环组焊(11)关于所述拉杆组焊(12)的中垂线对称设置。
  6. 根据权利要求1至5任一项所述的受电弓，其特征在于，所述端环组焊(11)还包括与所述螺纹座(112)焊接的U型板(113)，所述U型板(113)与所述螺纹座(112)配合罩设于所述端环(111)的圆环的外圈。
  7. 根据权利要求6所述的受电弓，其特征在于，所述U型板(113)和所述端环(111)之间的间距大于2mm。
  8. 根据权利要求7所述的受电弓，其特征在于，所述受电弓还包括应力传感器(18)，所述应力传感器(18)连接于所述U型板(113)的表面。
  9. 根据权利要求8所述的受电弓，其特征在于，所述受电弓还包括报警装置、控制器；所述应力传感器(18)连接所述控制器，所述控制器连接所述报警装置。
  10. 一种车辆系统，其特征在于，包括权利要求1至9任一项所述的受电弓。
PCT/CN2023/100143 2022-09-28 2023-06-14 一种受电弓及车辆系统 WO2024066484A1 (zh)

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