WO2016091040A1 - 动车组及其前窗结构 - Google Patents

动车组及其前窗结构 Download PDF

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Publication number
WO2016091040A1
WO2016091040A1 PCT/CN2015/093957 CN2015093957W WO2016091040A1 WO 2016091040 A1 WO2016091040 A1 WO 2016091040A1 CN 2015093957 W CN2015093957 W CN 2015093957W WO 2016091040 A1 WO2016091040 A1 WO 2016091040A1
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WIPO (PCT)
Prior art keywords
front window
vehicle body
single frame
window structure
wall
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PCT/CN2015/093957
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English (en)
French (fr)
Inventor
杨爱莲
李宏
鄢桂珍
陶桂东
丁叁叁
Original Assignee
中车青岛四方机车车辆股份有限公司
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Priority claimed from CN201420786931.4U external-priority patent/CN204355062U/zh
Priority claimed from CN201410764334.6A external-priority patent/CN104494624A/zh
Application filed by 中车青岛四方机车车辆股份有限公司 filed Critical 中车青岛四方机车车辆股份有限公司
Priority to TR2017/04131A priority Critical patent/TR201704131T1/tr
Publication of WO2016091040A1 publication Critical patent/WO2016091040A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D25/00—Window arrangements peculiar to rail vehicles

Definitions

  • the invention relates to the technical field of rail vehicles, in particular to an EMU and a front window structure thereof.
  • the existing EMU front window mounting structure includes direct bonding type, platen mechanical mounting type, and frame mechanical mounting type.
  • the existing frame mechanical installations mainly include two types:
  • the utility model relates to a double-frame structure, wherein one frame is bonded to the glass and the other frame is connected with the vehicle body and sealed by glue, and the two frames are separated to complete the glass replacement, but the two frame structures are complicated and the cost is high. Inconvenient to install.
  • the other is a single frame, a cushion is arranged between the frame and the window of the vehicle body, and is fixed by screws.
  • the outer end of the screw is coated with a sealant, and a gap between the side wall of the window body and the side wall of the frame is also provided with a sealant.
  • the sealant will be damaged, and air, water, etc. will easily enter between the car body and the frame through the screw hole, and then enter the interior of the car, causing air leakage and water leakage.
  • the frame is exposed to the outside and has a joint with the sealant, which increases the risk of leakage and affects the appearance.
  • an object of the present invention is to provide an EMU and a front window structure thereof, which utilizes a sealant strip disposed on a side of a fastener close to a compartment to improve the sealing performance of the front window structure.
  • the front window structure of the motor train includes a single frame adapted to the window of the vehicle body, and a front window glass mounted to the sealing and fixed to the single frame, the single frame being fixed to the vehicle body by a fastener
  • the inner wall of the window is provided with a notch on the inner wall of the window, the notch is located on a side of the fastener near the interior of the compartment, and the notch is internally provided with a sealing strip to seal the single frame and the inner wall of the window.
  • an outer surface of the front window and an outer surface of the vehicle body protrude from an outer surface of the single frame, and the vehicle body, the front window glass, and the opening formed by the single frame
  • the outwardly facing groove is filled with sealant.
  • an outer surface of the vehicle body protrudes from an outer surface of the front glazing, and an outer surface of the sealant is correspondingly inclined from an outer surface of the vehicle body to an outer surface of the front glazing.
  • an isolating tape is disposed between the outer end of the fastener and the sealant.
  • the fastener is a countersunk bolt
  • the single frame is provided with a counterbore matching thereto;
  • the isolating tape directly seals an outer wall of the single frame, and the two sides of the separation tape are respectively Extending to the window side wall of the vehicle body and the side wall of the front glazing.
  • a first damping pad is disposed between the sidewall of the single frame and the sidewall of the window, and/or a second damping pad is disposed between the single frame and the inner wall of the window.
  • a wire rope is embedded in the first damping pad.
  • the present invention also provides an EMU including a vehicle body, a front window structure disposed on the vehicle body, and a skin welded and fixed to the vehicle body, the front window structure being the front of any of the above Window structure. Since the above-described front window structure has the above technical effects, the EMU having the front window structure also has the same technical effect.
  • the vehicle body and the single frame are machined, and the inner side of the vehicle body is provided with abutting Reinforced beam resistant to welding deformation.
  • the vehicle body is provided with a welding boss, and an outer wall of the welding boss is welded to the skin.
  • FIG. 1 is a schematic structural view of a specific embodiment of a front window structure provided by the present invention.
  • Figure 2 is a schematic structural view of the position of the window of the vehicle body of Figure 1;
  • Fig. 3 is a partially enlarged schematic view showing the portion A of Fig. 2;
  • sealant 100 interior, 200 skin, 300 body, 300a window side wall, 300b window inner wall, 300c welding boss, 300d slope, 300e notch, 10 front window glass, 20 form sealant, 30 single frame, 40 sealant 51 first damping rubber pad, 511 steel wire rope, 52 second damping rubber pad, 60 sealing rubber strip, 70 isolation tape, 80 countersunk bolt.
  • FIG. 1 is a schematic structural view of a front embodiment of a front window structure according to the present invention
  • FIG. 2 is a structural schematic view of a window position of the vehicle body of FIG.
  • the embodiment provides a front window structure of an EMU, including a single frame 30 adapted to the window of the vehicle body 300, and a front window glass 10 mounted on the single frame 30 and sealed thereto.
  • the single frame 30 and the windshield 10 are pre-bonded and fixed by the window sealant 20.
  • the single frame 30 and the windshield 10 can also be sealed and fixed by other processes as long as the sealing requirements are met, for example, a rubber strip is provided, or is packaged in the single frame 30 by injection molding.
  • the bonding and fixing by the form sealant 20 is simple, the cost is low, and the sealing performance is excellent.
  • the single frame 30 is fixed to the window inner wall 300b of the vehicle body 300 by fasteners.
  • the fastener may be the countersunk bolt 80 shown in FIG. 1.
  • the spring lock, the card shaft and the like may also be adopted.
  • the connection is simple and has a reliable locking effect.
  • the window inner wall 300b of the vehicle body 300 is provided with a defect.
  • the mouth 300e, the notch 300e is located on the side of the fastener near the interior of the car. As shown in FIG. 1, the notch 300e is disposed on the right side of the countersunk bolt 80.
  • the front window glass 10 is directly facing the inside of the car, and the interior of the car is inside. It is separated from the vehicle body 300 by the interior 100, that is, the notch 300e is located on the side of the fastener closer to the windshield 10.
  • the notch 300e is internally provided with a sealant strip 60 to seal the single frame 30 and the window inner wall 300b of the vehicle body 300.
  • the sealing strip 60 can be bonded into the notch 300e by tape or glue to achieve a better positioning effect.
  • the window of the vehicle body 300 is grooved, and the single frame 30 and the front window glass 10 are actually embedded in the groove, and the notch of the groove is outward, that is, the outer side of the vehicle body 300, the groove
  • the bottom of the bottom is relatively inward, i.e., the "inner" wall as described herein, the side wall of the recess being the window side wall 300a of the body 300.
  • the single frame 30 is also disposed in a groove shape, and the front window glass 10 is embedded in the single frame 30.
  • the section on the side of the single frame 30 is L-shaped, and the single frame 30
  • the inner wall of the frame 30, the side wall (the side wall facing the side window glass 10) and the windshield 10 are filled with a window sealant 20.
  • the sealant strip 60 is preferably designed to be annular so that the entire single frame 30 and the vehicle body window inner wall 300b are both sealed by the sealing strip 60, thereby sufficiently ensuring the sealing property.
  • the outer surface of the windshield 10 and the outer surface of the vehicle body 300 may both protrude from the outer surface of the single frame 30.
  • the vehicle body 300, the front window glass 10, and the single frame 30 form a groove with an opening facing outward.
  • the window side wall 300 a of the vehicle body 300 and the side wall of the front window glass 10 are side walls of the groove, and the end of the single frame 30 forms the bottom of the groove, and the groove is filled with the sealant. 40.
  • the outer surface of the vehicle body 300 can protrude from the outer surface of the windshield 10, and the outer surface of the sealant 40 is correspondingly inclined from the outer surface of the vehicle body 300 to the outer surface of the windshield 10. So designed, even if there is an installation error, the windshield 10 does not protrude from the outer surface of the vehicle body 300. Thereby, the front window glass 10 is prevented from protruding from the outer surface of the vehicle body 300 due to the installation error, causing wind resistance.
  • the specific value of the difference in height between the outer surface of the vehicle body 300 and the outer surface of the windshield 10 can be set by a person skilled in the art according to the usual mounting error.
  • an isolating tape 70 may be disposed between the outer end of the fastener and the sealant 40. As shown in FIG. 1, an isolating tape 70 is disposed between the head of the countersunk bolt 80 and the sealant 40. Regardless of the fasteners used, the adhesion of the sealant 40 may affect the subsequent disassembly efficiency. Taking the countersunk bolt 80 in this embodiment as an example, the cross hole, the word hole, etc. of the head may be matched with the screwdriver. Once attached by the sealant 40, the difficulty of disassembly will be greatly increased. The arrangement of the release tape 70 can effectively avoid the influence of the sealant 40, enabling quick disassembly and assembly. Specifically, the release tape 70 may be attached to the position where the fastener is located, or an annular release tape 70 may be used. When disassembled, the adhesive tape 70 may be integrally removed.
  • the fastener in this embodiment preferably employs a countersunk bolt 80.
  • the single frame 30 is provided with a counterbore matching thereto. After the countersunk bolt 80 is mounted on the counterbore, the head can be flat with the outer end surface of the single frame 30.
  • the release tape 70 directly seals the outer end surface of the single frame 30, and also prevents the sealant 40 from adhering to the stem portion of the countersunk bolt 80 to completely isolate it from the sealant 40.
  • a first damping pad 51 may be disposed between the side wall of the single frame 30 and the window side wall 300a of the vehicle body 300, and/or the single frame 30 and the window inner wall 300b of the vehicle body 300 may be disposed.
  • the second damping pad 52 The damping rubber pad can reduce the vibration on the one hand, and can also achieve a certain sealing effect.
  • the release tape 70 can also isolate the entire sealant 40 from the mounting structure of the front window. As shown in FIG. 1, the release tape 70 is sealed on the window side wall 300b and the front window 10 side.
  • the end faces of the first insulating pad 51, the single frame 30, the frame sealant 20, and the countersunk bolt 80 are all flush, and the isolating tape 70 is located on the four end faces.
  • the isolating tape 70 can avoid the sealant.
  • the influence of 40 on other structures also facilitates the application of the sealant 40.
  • a wire rope 511 can be embedded in the first damping pad 51, as shown in FIG.
  • the end of the wire rope 511 can be exposed on the inner side of the vehicle body 300.
  • the end of the wire rope 511 can be directly pulled, and the first vibration damping pad 51 can be taken out for quick disassembly and assembly.
  • the formed body 300 and the skin 200 finished welding may be edge airtight welding;
  • a sealing strip 60 is placed at the notch 300e of the body 300, and the sealing strip 60 can be adhered to the notch 300e by tape or adhesive;
  • a first damping pad 51 is disposed between the side wall of the single frame 30 and the window side wall 300a;
  • the isolation tape 70 is attached to the outer end surface of the head of the countersunk bolt 80;
  • the single frame 30 can be removed, and the front window can be replaced.
  • the sealing strip 60 has poor sealing performance, the sealing strip 60 can be replaced at the same time, and the inner unit 100 does not need to be removed. It can be seen that the structure can realize efficient removal of the front window structure.
  • the present invention further provides an EMU including a vehicle body 300, a front window structure disposed on the vehicle body 300, and a skin 200 welded and fixed to the vehicle body 300.
  • the front window structure is any of the above implementations.
  • the front window structure described in the example Since the above-described front window structure has the above technical effects, the EMU having the front window structure also has the same technical effect.
  • the vehicle body 300 and the single frame 30 can be machined, and the machine body 300 and the single frame 30 formed by machining have higher precision, thereby having a higher matching degree, and ensuring the front window glass 10 and the vehicle.
  • the window of body 300 is within normal installation tolerances.
  • the existing car body is generally stretched, and the frame of the glass is also processed, which makes the two difficult to match, and the installation error is large.
  • a reinforcing beam for resisting welding deformation may be further disposed inside the vehicle body 300. It is possible to obtain a position where the vehicle body 300 is easily deformed by welding, and then provide a reinforcing beam at such a position to reduce deformation when the vehicle body 300 is welded to the skin, and to ensure normal installation of the windshield 10.
  • FIG. 3 is a partial enlarged view of the portion A in FIG.
  • the vehicle body 300 may be provided with a welding boss 300c, and the welding boss 300c The outer wall is welded to the skin 200.
  • the vehicle body 300 is provided with a welding boss 300c extending along the longitudinal direction of the vehicle body 300, and the welding position of the skin 200 and the vehicle body 300 is away from the front window mounting position, further reducing the welding deformation to the front window glass 10. Installation impact.
  • the outer wall of the welding boss 300c may be provided with a convex surface facing outward, the convex portion having a slope surface 300d, and the end portion of the skin 200 is inclined, and when the skin is adhered to the welding boss 300c, the end inclined surface and the slope surface 300d Matching the matching, the matching setting of the slope 300d and the inclined surface not only serves as a guiding effect, but also facilitates the welding.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Seal Device For Vehicle (AREA)

Abstract

一种动车组的前窗结构，所述前窗结构包括与车体（300）的窗口适配的单框（30），以及安装于所述单框（30）并与其密封固定的前窗玻璃（10），所述单框（30）通过紧固件固定于所述车体（300）的窗口内壁（300a），所述窗口内壁（300a）设有缺口（300e），所述缺口（300e）位于所述紧固件靠近车厢内部的一侧，所述缺口（300e）内置放有密封胶条（60），以密封所述单框（30）和所述窗口内壁（300a）。当前窗结构外侧的密封构件失效时，经紧固件的安装孔进入的气体、水分等可以被密封胶条隔离，而无法进入车厢内部，从而保证前窗结构的密封性。还披露了一种具有上述前窗结构的动车组。

Description

动车组及其前窗结构
本申请要求于2014年12月11日提交中国专利局、申请号为201410764334.6、发明名称为“动车组及其前窗结构”的中国专利申请，以及要求于2014年12月11日提交中国专利局、申请号为201420786931.4、发明名称为“动车组及其前窗结构”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技术领域，特别涉及一种动车组及其前窗结构。
背景技术
现有动车组前窗安装结构包括直接粘结式、压板机械安装式，以及框架机械安装式。
采用直接粘结式及压板机械安装式时，前窗玻璃的更换较为困难，更换后列车停运时间较长，故主要采用框架机械安装式。现有的框架机械安装式主要包括两种：
一种为双框结构，其中一个框与玻璃粘结为一体，另一个框与车体连接并通过胶密封，将两框分离即可完成玻璃更换，但两个框架结构复杂，成本较高，安装不便。
另一种为单一框架，框架与车体窗口间设置减震垫，并通过螺钉固定，螺钉外端涂有密封胶，车体窗口侧壁和框架侧壁之间的间隙也设有密封胶。然而，上述方案存在下述技术问题：
首先，长期运用后，密封胶会损坏，空气、水等容易经螺钉孔进入车体和框架之间，继而进入车厢内部，出现漏气、漏水的现象。
其次，以从外向内的视角，框架暴露于外部、与密封胶之间有接缝，增加了泄漏的风险，而且影响美观。
有鉴于此，亟待改进前窗安装结构，以提高其密封性能，是本领域技术人员亟待解决的技术问题。
发明内容
为解决上述技术问题，本发明的目的为提供一种动车组及其前窗结构，该前窗结构利用设置于紧固件靠近车厢一侧的密封胶条，提高了前窗结构的密封性能。
该动车组的前窗结构，包括与车体的窗口适配的单框，以及安装于所述单框并与其密封固定的前窗玻璃，所述单框通过紧固件固定于所述车体的窗口内壁，所述窗口内壁设有缺口，所述缺口位于所述紧固件靠近车厢内部的一侧，所述缺口内置放有密封胶条，以密封所述单框和所述窗口内壁。
如此设计，当前窗结构外侧的密封构件失效时，经紧固件的安装孔进入的气体、水分等可以被密封胶条隔离，而无法进入车厢内部，从而保证前窗结构的密封性。
可选地，所述前窗玻璃的外表面以及所述车体的外表面均突出于所述单框的外表面，且所述车体、所述前窗玻璃、所述单框形成的开口朝外的凹槽内充满密封胶。
可选地，所述车体的外表面突出于所述前窗玻璃的外表面，所述密封胶的外表面相应地自所述车体外表面倾斜至所述前窗玻璃的外表面。
可选地，所述紧固件的外端部与所述密封胶之间设有隔离胶带。
可选地，所述紧固件为沉头螺栓，所述单框设有与之匹配的沉孔；所述隔离胶带直接封贴所述单框的外壁，且所述隔离胶带的两侧分别延伸至所述车体的窗口侧壁和所述前窗玻璃的侧壁。
可选地，所述单框的侧壁与所述窗口侧壁之间设有第一减振胶垫，和/或所述单框与所述窗口内壁之间设有第二减振胶垫。
可选地，所述第一减振胶垫内预埋有钢丝绳。
本发明还提供一种动车组，包括车体、设于所述车体的前窗结构，以及与所述车体焊接固定的蒙皮，所述前窗结构为上述任一项所述的前窗结构。由于上述前窗结构具有上述技术效果，具有该前窗结构的动车组也具有相同的技术效果。
可选地，所述车体和所述单框均机加工而成，且所述车体内侧设有抵 抗焊接变形的加强梁。
可选地，所述车体设有焊接凸台，所述焊接凸台的外壁与所述蒙皮贴合焊接。
附图说明
图1为本发明所提供前窗结构一种具体实施例的结构示意图；
图2为图1中车体窗口位置的结构示意图；
图3为图2中A部位的局部放大示意图。
图1-3中：
100内装、200蒙皮、300车体、300a窗口侧壁、300b窗口内壁、300c焊接凸台、300d坡面、300e缺口、10前窗玻璃、20窗体密封胶、30单框、40密封胶、51第一减振胶垫、511钢丝绳、52第二减振胶垫、60密封胶条、70隔离胶带、80沉头螺栓。
具体实施方式
为了使本领域的技术人员更好地理解本发明的技术方案，下面结合附图和具体实施例对本发明作进一步的详细说明。
请参考图1-2，图1为本发明所提供前窗结构一种具体实施例的结构示意图；图2为图1中车体窗口位置的结构示意图。
该实施例提供一种动车组的前窗结构，包括与车体300的窗口适配的单框30，以及安装于单框30并与其密封固定的前窗玻璃10，本实施例中，单框30与前窗玻璃10通过窗体密封胶20预先粘结固定。可以理解，只要满足密封性要求，单框30和前窗玻璃10也可以通过其他工艺实现密封固定，比如，设置胶条，或是通过注塑封装于单框30内。当然，通过窗体密封胶20粘结固定较为简便，成本较低，且密封性能优良。
单框30则通过紧固件固定于车体300的窗口内壁300b，紧固件可以是图1中所示的沉头螺栓80，当然，也可以采取弹簧锁、卡轴等紧固方式，螺栓连接较为简便且具有可靠的锁紧效果。
与现有技术不同的是，本实施例中，车体300的窗口内壁300b设有缺 口300e，缺口300e位于紧固件靠近车厢内部的一侧，如图1所示，缺口300e设于沉头螺栓80的右侧，前窗玻璃10所正对的位置即为车厢内部，车厢内部通过内装100与车体300隔开，即缺口300e位于紧固件更靠近前窗玻璃10的一侧。缺口300e内置放有密封胶条60，以密封单框30和车体300的窗口内壁300b。密封胶条60可以通过胶带或是粘胶粘结于缺口300e内，以达到较好的定位效果。
需要说明的是，车体300的窗口呈凹槽式，单框30以及前窗玻璃10实际上镶嵌于该凹槽内，凹槽的槽口则朝外，即车体300的外侧，凹槽的底部相对朝内，即文中所述的“内”壁，凹槽的侧壁即车体300的窗口侧壁300a。本实施例中，与窗口结构相对应，单框30也呈凹槽式设置，前窗玻璃10嵌于单框30内，如图1所示，单框30一侧的截面呈L形，单框30的内壁、侧壁(朝向前窗玻璃10的一侧侧壁)与前窗玻璃10之间充满窗体密封胶20。
如此设计，当前窗结构外侧的密封构件失效时，经紧固件的安装孔进入的气体、水分等可以被密封胶条60隔离，而无法进入车厢内部，从而保证前窗结构的密封性。显然，密封胶条60优选地设计为环形，以使整个单框30与车体窗口内壁300b均被密封胶条60密封，从而充分地保证密封性。
进一步地，前窗玻璃10的外表面以及车体300的外表面可以均突出于单框30的外表面，此时，车体300、前窗玻璃10、单框30形成开口朝外的凹槽，如图1所示，车体300的窗口侧壁300a、前窗玻璃10的侧壁为凹槽的侧壁，单框30的端部形成凹槽的底部，在该凹槽内充满密封胶40。
如此，以车体300由外向内为视角，仅车体300外表面、密封胶40外表面以及前窗玻璃10外表面外露，只有密封胶40与车体300窗口侧壁300a、密封胶40与前窗玻璃10侧壁的两条接缝，相较于背景技术，接缝数量明显减少，从而进一步提高了密封性，而且，车体300外观整体较为平整、美观。
在此基础上，车体300的外表面可以突出于前窗玻璃10的外表面，则密封胶40的外表面相应地自车体300外表面倾斜至前窗玻璃10的外表面。如此设计，即使存在安装误差，前窗玻璃10也不会突出于车体300外表面， 从而避免由安装误差导致前窗玻璃10突出于车体300外表面，而引起风阻。车体300外表面与前窗玻璃10外表面之间高度差的具体数值，本领域技术人员可以根据通常的安装误差设置。
针对上述实施例，紧固件的外端部与密封胶40之间可以设置隔离胶带70，如图1所示，沉头螺栓80的头部与密封胶40之间设有隔离胶带70。无论采取何种紧固件，密封胶40的附着均会影响后续的拆卸效率，以本实施例中的沉头螺栓80为例，其头部的十字孔、一字孔等可与螺丝刀配合，一旦被密封胶40附着，将大幅增加拆卸难度。隔离胶带70的设置能够有效地避免密封胶40的影响，实现快速拆装。隔离胶带70具体可以仅粘贴于紧固件所在的位置，也可以采用环形的隔离胶带70，拆卸时，可整体揭开。
本实施例中的紧固件优选地采用沉头螺栓80，单框30设有与之匹配的沉孔，沉头螺栓80安装于沉孔后，其头部与单框30的外端面能够平齐，便于隔离胶带70设置，隔离胶带70直接封贴单框30的外端面即可，也避免密封胶40附着沉头螺栓80的杆部，使其与密封胶40彻底隔离。
针对上述各实施例，单框30的侧壁与车体300的窗口侧壁300a之间可以设置第一减振胶垫51，和/或单框30与车体300的窗口内壁300b之间设置第二减振胶垫52。减振胶垫一方面可以起到减振作用，另外也可以起到一定的密封效果。隔离胶带70除了封住紧固件的端部，还可以将密封胶40整体与前窗的安装结构隔离，如图1所示，隔离胶带70封贴于窗口侧壁300b与前窗玻璃10侧壁之间，第一隔离胶垫51、单框30、框体密封胶20、沉头螺栓80的端面均平齐，隔离胶带70位于四者端面之上，如此，隔离胶带70可以避免密封胶40对其他结构的影响，也便于密封胶40涂胶的进行。
第一减振胶垫51内可以预埋有钢丝绳511，如图1所示。钢丝绳511的端部可以外露于车体300内侧，则拆卸时，可以直接拉住钢丝绳511的端部，取出第一减振胶垫51，实现快速拆装。
上述前窗结构的安装过程如下：
a、将成型后的车体300与蒙皮200完成焊接，可以是边部气密焊；
b、在车体300的缺口300e处放置密封胶条60，密封胶条60可通过胶带或粘胶粘结于缺口300e内；
c、在车体300的窗口内壁300b铺设第二减振胶垫52；
d、将已安装于单框30内的前窗玻璃10与车体300窗口定位；
e、采用沉头螺栓80固定前窗于车体300窗口处；
f、在单框30侧壁和窗口侧壁300a之间设置第一减振胶垫51；
g、在沉头螺栓80头部的外端面处粘贴隔离胶带70；
h、在隔离胶带70表面涂打密封胶40，完成前窗安装密封。
上述前窗结构的拆卸过程如下：
a、切除密封胶40；
b、揭除隔离胶带70；
c、取下沉头螺栓80，拆卸单框30。
如此即可拆除单框30，进行前窗的更换，当密封胶条60密封性能欠佳时，同时更换密封胶条60即可，也无需拆除内装100。可见，该结构可实现前窗结构的高效拆除。
除了上述前窗结构，本发明还提供一种动车组，包括车体300、设于车体300的前窗结构，以及与车体300焊接固定的蒙皮200，前窗结构为上述任一实施例所述的前窗结构。由于上述前窗结构具有上述技术效果，具有该前窗结构的动车组也具有相同的技术效果。
本实施例中，车体300和单框30均可通过机加工而成，机加工形成的车体300和单框30具有较高精度，从而具备较高匹配度，确保前窗玻璃10与车体300的窗口处于正常的安装误差范围内。而现有的车体一般拉伸形成，玻璃的框架也另加工，导致二者难以匹配，安装误差较大。
另外，车体300内侧可以进一步设置用于抵抗焊接变形的加强梁。可以通过试验获取车体300焊接时容易变形的位置，然后在该类位置处设置加强梁，以使车体300与蒙皮焊接时，能够减小变形，确保前窗玻璃10的正常安装。
请继续参考图3，图3为图2中A部位的局部放大示意图。
作为优选的方案，车体300可以设置焊接凸台300c，焊接凸台300c 的外壁与蒙皮200贴合焊接。如图1所示，车体300设有沿车体300长度方向延伸的焊接凸台300c，蒙皮200与车体300的焊接位置远离前窗安装位置，进一步降低焊接变形对前窗玻璃10的安装影响。焊接凸台300c的外壁可以设置朝向外侧的凸起，凸起具有坡面300d，蒙皮200的端部呈斜面，蒙皮与焊接凸台300c贴合时，其端部斜面与该坡面300d匹配抵触，坡面300d和斜面的匹配设置既起到导向的效果，也有利于焊接的进行。
以上对本发明所提供的一种动车组及其前窗结构均进行了详细介绍。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. 一种动车组的前窗结构，包括与车体(300)的窗口适配的单框(30)，以及安装于所述单框(30)并与其密封固定的前窗玻璃(10)，所述单框(30)通过紧固件固定于所述车体(300)的窗口内壁(300a)，其特征在于，所述窗口内壁(300a)设有缺口(300e)，所述缺口(300e)位于所述紧固件靠近车厢内部的一侧，所述缺口(300e)内置放有密封胶条(60)，以密封所述单框(30)和所述窗口内壁(300a)。
  2. 如权利要求1所述的前窗结构，其特征在于，所述前窗玻璃(10)的外表面以及所述车体(300)的外表面均突出于所述单框(30)的外表面，且所述车体(300)、所述前窗玻璃(10)、所述单框(30)形成的开口朝外的凹槽内充满密封胶(40)。
  3. 如权利要求2所述的前窗结构，其特征在于，所述车体(300)的外表面突出于所述前窗玻璃(10)的外表面，所述密封胶(40)的外表面相应地自所述车体(300)外表面倾斜至所述前窗玻璃(10)的外表面。
  4. 如权利要求2或3所述的前窗结构，其特征在于，所述紧固件的外端部与所述密封胶(40)之间设有隔离胶带(70)。
  5. 如权利要求4所述的前窗结构，其特征在于，所述紧固件为沉头螺栓(80)，所述单框(30)设有与之匹配的沉孔；所述隔离胶带(70)直接封贴所述单框(30)的外壁，且所述隔离胶带(70)的两侧分别延伸至所述车体(300)的窗口侧壁(300b)和所述前窗玻璃(10)的侧壁。
  6. 如权利要求1-3任一项所述的前窗结构，其特征在于，所述单框(30)的侧壁与所述窗口侧壁(300b)之间设有第一减振胶垫(51)，和/或所述单框(30)与所述窗口内壁(300a)之间设有第二减振胶垫(52)。
  7. 如权利要求6所述的前窗结构，其特征在于，所述第一减振胶垫(51)内预埋有钢丝绳(511)。
  8. 一种动车组，包括车体(300)、设于所述车体(300)的前窗结构，以及与所述车体(300)焊接固定的蒙皮(200)，其特征在于，所述前窗结构为权利要求1-7任一项所述的前窗结构。
  9. 如权利要求8所述的动车组，其特征在于，所述车体(300)和所述单框(30)均机加工而成，且所述车体(300)内侧设有抵抗焊接变形的加强梁。
  10. 如权利要求8或9所述的动车组，其特征在于，所述车体(300)设有焊接凸台(300c)，所述焊接凸台(300c)的外壁与所述蒙皮(200)贴合焊接。
PCT/CN2015/093957 2014-12-11 2015-11-06 动车组及其前窗结构 WO2016091040A1 (zh)

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