WO2020037722A1 - Rail transit vehicle - Google Patents
Rail transit vehicle Download PDFInfo
- Publication number
- WO2020037722A1 WO2020037722A1 PCT/CN2018/104560 CN2018104560W WO2020037722A1 WO 2020037722 A1 WO2020037722 A1 WO 2020037722A1 CN 2018104560 W CN2018104560 W CN 2018104560W WO 2020037722 A1 WO2020037722 A1 WO 2020037722A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- traction transformer
- rail transit
- vehicle body
- fuel tank
- transit vehicle
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C3/00—Electric locomotives or railcars
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/025—Constructional details relating to cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
Definitions
- the present invention relates to the technical field of rail transit, and particularly to a rail transit vehicle.
- Traction transformer for rail transit vehicles is a special voltage grade power transformer. It is usually used to convert the 25KV high-voltage obtained on the contact network into a suitable voltage for traction motors and other motors and electrical appliances. The requirements of drastic load changes, meanwhile, it is necessary to suppress harmonic currents and limit short-circuit currents to ensure the safe, stable, and reliable operation of rail transit vehicles. Therefore, traction transformers are the core and key components of rail transit vehicles.
- Existing traction transformers usually include iron cores, windings, fuel tanks, oil storage tanks, cooling systems, bushings, transformer oil, etc., where the iron cores and windings generate voltage drops through electromagnetic induction, and transformer oil is stored in the oil tank.
- the cabinet is used to prevent the oil pressure in the tank from being too high or lacking oil due to the thermal expansion and contraction of the transformer oil.
- the cooling system reduces the temperature of the transformer oil through heat exchange.
- the existing traction transformer is usually installed on the bottom of the rail transit vehicle.
- This arrangement requires a certain height and space on the bottom of the rail transit vehicle to accommodate the traction transformer, which limits the convenience of installation and maintenance of the traction transformer.
- it is easy to be contaminated and blocked by muddy water at the bottom of the vehicle, and it is also easy to be scratched and damaged by the hard object at the bottom of the vehicle, which seriously affects the service life of the traction transformer and thus affects the reliability of the rail transit vehicle.
- the height of the bottom surface of the rail transit vehicle from the ground is high, and a certain height platform is usually required for passengers to get on and off the vehicle conveniently, making the use environment of rail transit vehicles limited and applicable. Worse.
- the existing setting of the traction transformer makes the work of the rail transit vehicle less reliable and less adaptable.
- the object of the present invention is to provide a rail transit vehicle, which changes the traction transformer from the bottom of the vehicle to the top of the vehicle, which is beneficial to improving its working reliability and adaptability.
- the invention provides a rail transit vehicle, which includes a vehicle body and a traction transformer, the traction transformer is fixed on the top of the vehicle body, and the outer contour of the traction transformer is located at a place protruding in a direction away from the bottom surface of the vehicle body.
- the outline of the roof is not limited to a rail transit vehicle.
- it further comprises:
- a support seat fixedly connected to the top of the vehicle body
- a fixing device fixedly connected to the bottom of the traction transformer to support the traction transformer
- a vibration damping device fixedly connected between the support base and the fixing device for buffering vibration.
- the traction transformer includes a fuel tank
- the fixing device includes:
- Two load-bearing rods located on both sides of the fuel tank and staggered along the width direction of the vehicle body;
- Stiffener plates respectively fixed between two bearing rods and the fuel tank;
- a plurality of fixing frames are fixed on one side of the two bearing rods away from the stiffener plate, and are staggered and distributed along the length direction corresponding to the bearing rods, for fixing the vibration damping device.
- the traction transformer further includes an oil storage tank welded to the top of the oil tank.
- the traction transformer further includes a cooling device located between the two load bearing rods and installed on a side of the fuel tank.
- the width of the oil storage tank and the width of the cooling device are both smaller than the width of the fuel tank
- the rib plate is specifically a right-angle trapezoid stiffener plate, and the hypotenuse of the right-angle trapezoid stiffener plate is opposite
- the extension lines intersect above the fuel tank.
- the traction transformer further includes a connection cable and a connection oil pipe, and a protective cover covering the connection cable and an outer periphery of the connection oil pipe.
- a rail transit vehicle includes a vehicle body and a traction transformer, the traction transformer is fixed to the top of the vehicle body, and the outer contour of the traction transformer is convex in a direction away from the bottom surface of the vehicle body Inside the roof contour.
- the traction transformer is disposed on the top of the vehicle body, on the one hand, it is beneficial to reduce the risk of the traction transformer from being polluted, blocked, and scratched, and it is beneficial to reduce the failure rate of the traction transformer and extend its service life, thereby Conducive to improving the working reliability of rail transit vehicles;
- the traction transformer is located on the top of the car body, which helps to reduce the height of the bottom of the car body from the ground, without the need to add a platform with a certain height The use conditions are less affected by the height of the platform, which is conducive to improving its adaptability to a certain extent.
- the rail transit vehicle provided by the present invention is beneficial to improving its working reliability and adaptability.
- FIG. 1 is a schematic diagram of a partial structure of a rail transit vehicle provided by a specific embodiment of the present invention
- FIG. 2 is a top view of FIG. 1;
- the supporting rod 41, the rib 42 and the fixing frame 43 are identical to each other.
- FIG. 1 and FIG. 2 is a schematic diagram of a partial structure of a rail transit vehicle according to a specific embodiment of the present invention
- FIG. 2 is a top view of FIG. 1.
- a rail transit vehicle which comprises a vehicle body and a traction transformer.
- a rail transit vehicle includes a plurality of car bodies connected end to end and at least one traction transformer.
- each traction transformer is installed on the top of one of the car bodies.
- the top of the vehicle body has a roof contour line 1 that is convex with respect to the bottom surface of the vehicle body facing away from the bottom surface of the vehicle body.
- the roof contour line refers to the maximum dynamic envelope formed by all equipment on the top of the vehicle body.
- the common roof contour line 1 is a convex formed by connecting multiple arc segments with different radii.
- the arc starting line, or the convex arc line formed by the smooth transition connection of multiple straight lines and multiple arcs, is specifically referred to FIG. 1.
- the traction transformer is fixed on the top of the vehicle body, and the outer contour of the traction transformer is located in the roof contour line 1. Specifically, by adjusting the ratio between the length, width, and height of each component in the traction transformer, the cross section of the traction transformer in the direction perpendicular to the length of the vehicle body can be completely enveloped within the roof contour line 1 or with the roof
- the contour line 1 coincides so that the vehicle contour line is completely within the vehicle limit, where the vehicle limit refers to the maximum dynamic envelope formed by the vehicle under normal operating conditions, in order to prevent the vehicle body from running with straight lines or curved lines with external buildings and Contact or collision of related equipment to ensure safe passage.
- the conversion of the traction transformer from the bottom of the vehicle body to the top of the vehicle body ensure that the outer contour of the traction transformer is located within the contour line 1 of the vehicle roof, which is not only conducive to avoiding the traction transformer from pollution, blockage and scratch And other damage, so as to increase the service life by reducing the failure rate to improve the working reliability of rail transit vehicles; and it is beneficial to reduce the height of the bottom surface of the car body from the ground, avoid the addition of higher platforms, and weaken the influence of the platform height, thus Conducive to improving its adaptability. Therefore, the rail transit vehicle provided by the present invention is beneficial to improving its working reliability and adaptability.
- the present invention further includes a support base 3, a fixing device 4, and a vibration reduction device.
- the fixing device 4 is fixedly connected to the bottom of the traction transformer, and is used for supporting the traction transformer.
- the width of the fixing device 4 is generally smaller than the width of the vehicle body so as to cooperate with the support base 3 to fix the traction transformer.
- the vibration damping device is fixedly connected between the support base 3 and the fixing device 4 and is mainly used for buffering shock vibration, so as not to affect the service life of the traction transformer due to severe fluctuations, which is beneficial to further improving the working reliability of rail transit vehicles.
- the vibration damping device preferably has a cylindrical compression coil spring damper with a circular spring section.
- it is not limited to this. The use of other types of vibration damping devices does not affect the realization of the object of the present invention.
- the traction transformer in the present invention includes an oil tank 21 for storing transformer oil.
- a tank cover for sealing the fuel tank 21 is provided on the top of the fuel tank 21, and the cross-sectional area of the tank cover is larger than the cross-sectional area of the fuel tank 21.
- the fuel tank 21 is preferably a cube-shaped or rectangular parallelepiped fuel tank.
- the tank cover is a square steel plate or a rectangular steel plate.
- the structure of the fuel tank 21 and the tank cover is not limited to this, but regardless of the structure of the two, the fuel tank must be guaranteed
- the opening of 21 is completely covered by the tank cover, and the thickness of the tank cover fully meets the strength requirements of the fuel tank 21.
- the fixing device 4 includes a bearing rod 41, a stiffener plate 42, and a fixing frame 43.
- the load-bearing rods 41 specifically include two load-bearing rods 41 located on both sides of the fuel tank 21, and the two load-bearing rods 41 are staggered and distributed along the width direction of the vehicle body.
- the two load-bearing rods 41 are preferably long metal rods made of a square hollow steel pipe, and their lengths are greater than the length of the fuel tank 21.
- the structure and material of the bearing rod 41 are not limited to this.
- each of the rib plates 42 is preferably a right-angled trapezoidal rib plate made of a metal steel plate, and the right-angled right-angled sides thereof are fixed to one side of the fuel tank 21 by welding.
- the inclined plates of the right-angle trapezoidal stiffener plate are oppositely arranged, and the extension lines of the two oblique sides intersect at a certain point above the fuel tank 21.
- the side of the plurality of reinforcing rib plates 42 are respectively provided with an avoidance groove for avoiding the bearing rod 41, and the two bearing rods 41 are correspondingly welded into the escape grooves of the reinforcing rib plates 42 connected to them.
- the structure of the rail transit vehicle is more compact, so as to achieve weight reduction and miniaturization.
- the structure and number of the ribs 42 are not limited to this.
- the fixing brackets 43 include a plurality of fixing brackets 43 which are respectively fixed on the two bearing rods 41 away from the reinforcing rib plate 42 and staggered along the length direction of the corresponding bearing rods 41 so as to fix the vibration damping device, that is, fixed.
- the number of frames 43 and the number of vibration damping devices are the same.
- each fixing frame 43 is specifically composed of two right-angled triangular metal plates and a metal flat plate welded to the bottom of the two right-angled triangular metal plates, and the metal flat plate is provided with a fixing for receiving and fixing one end of the vibration damping device. hole.
- This embodiment specifically includes at least four fixing brackets 43 for fixing the vibration damping device, and each two fixing brackets 43 are respectively welded to two ends of one of the bearing rods 41.
- each two fixing brackets 43 are respectively welded to two ends of one of the bearing rods 41.
- the structure, quantity and installation of the fixing brackets 43 The locations are not limited to this.
- the traction transformer further includes an oil storage tank 22 welded to the top of the oil tank 21.
- the connection by welding is more conducive to simplifying the track.
- the structure of the traffic vehicle is conducive to light weight and miniaturization; at the same time, the welding method is used to improve the strength of the connection between the fuel tank 21 and the oil storage tank 22, so as to prevent the oil storage tank 22 from being exposed to the fuel tank due to severe vibration. 21 loosening is conducive to reducing the failure rate and improving work reliability.
- the connection manner of the oil storage tank 22 and the fuel tank 21 may also be other connection manners such as bolt connection.
- the cross-sectional area of the oil storage tank 22 is preferably smaller than the cross-sectional area of the tank cover of the fuel tank 21, and the outer contours of the oil storage tank 22 and the fuel tank 21 are both located within the roof contour line 1.
- the present invention further includes a cooling device 23 located between the two bearing rods 41 and installed on the side of the oil tank 21.
- the fuel tank 21 and the cooling device 23 are fixedly connected together by using a bolt connection, which is beneficial to further make the structure of the rail transit vehicle more compact, so as to achieve light weight and miniaturization, and at the same time can also strengthen the cooling device 23 and The strength of the connection between the fuel tanks 21 prevents relative shaking between the two to reduce the failure rate, which is conducive to prolonging the service life, thereby effectively improving the working reliability.
- the outer contour of the cooling device 23 is also located within the roof contour line 1.
- the cooling device 23 also includes a connecting oil pipe, a cooler and an oil pump, wherein the connecting oil pipe is mainly connected between the oil tank 21 and the cooling device 23, and the oil pump is provided on the connecting oil pipe so that the oil pump drives the coolant to circulate between the oil tank 21 and the cooler.
- the heat of the transformer oil is taken away by heat exchange, thereby effectively reducing the temperature of the transformer oil.
- the width of the oil storage tank 22 and the width of the cooling device 23 are smaller than the width of the fuel tank 21.
- the external contours of the fixing device 4 and the traction transformer are completely enveloped by the roof contour line 1. Inside to ensure the safety of rail vehicles.
- the present invention also includes connecting cables and protective sleeves, in which the number of protective sleeves is several, so as to cover the outer periphery of the connecting cables one by one to prevent the connecting cables from being exposed to sunlight. Damage or rupture due to aging or rain and snow erosion, thereby effectively enhancing the ability of the traction transformer to resist the external climate, so as to reduce the failure rate of the traction transformer, prolong its service life, and improve its reliability.
- the protection method is not limited to this.
- the structure of the traction transformer is not limited to this.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Transformer Cooling (AREA)
- Housings And Mounting Of Transformers (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Description
Claims (7)
- 一种轨道交通车辆,包括车体和牵引变压器,其特征在于,所述牵引变压器固定于所述车体的顶部且所述牵引变压器的外部轮廓位于向远离所述车体底面的方向凸起的所述车顶轮廓线(1)内。A rail transit vehicle includes a vehicle body and a traction transformer, wherein the traction transformer is fixed on the top of the vehicle body and the outer contour of the traction transformer is located in a direction protruding away from the bottom surface of the vehicle body. Inside the roof contour line (1).
- 根据权利要求1所述的轨道交通车辆,其特征在于,还包括:The rail transit vehicle according to claim 1, further comprising:与所述车体的顶部相固连的支撑座(3);A support seat (3) fixedly connected to the top of the vehicle body;与所述牵引变压器的底部相固连以支撑所述牵引变压器的固定装置(4);A fixing device (4) fixedly connected to the bottom of the traction transformer to support the traction transformer;固连于所述支撑座(3)与所述固定装置(4)之间、用于缓冲振动的减振装置。A vibration damping device fixedly connected between the support base (3) and the fixing device (4) for buffering vibration.
- 根据权利要求2所述的轨道交通车辆,其特征在于,所述牵引变压器包括油箱(21),所述固定装置(4)包括:The rail transit vehicle according to claim 2, wherein the traction transformer comprises a fuel tank (21), and the fixing device (4) comprises:两条分别位于所述油箱(21)两侧且沿所述车体的宽度方向错开分布的承载杆(41);Two load-bearing rods (41) located on both sides of the fuel tank (21) and staggered along the width direction of the vehicle body;分别固定于两条承载杆(41)与所述油箱(21)之间的加强筋板(42);Stiffener plates (42) respectively fixed between the two bearing rods (41) and the fuel tank (21);若干分别固设于两条所述承载杆(41)远离所述加强筋板(42)的一侧且沿对应所述承载杆(41)的长度方向错开分布、用于固定所述减振装置的固定架(43)。A plurality of fixing rods are respectively fixed to one side of the bearing rod (41) away from the reinforcing rib plate (42), and are staggered and distributed along the length direction corresponding to the bearing rod (41) for fixing the vibration damping device. Mounting bracket (43).
- 根据权利要求3所述的轨道交通车辆,其特征在于,所述牵引变压器还包括焊接于所述油箱(21)顶部的储油柜(22)。The rail transit vehicle according to claim 3, wherein the traction transformer further comprises an oil storage tank (22) welded to the top of the oil tank (21).
- 根据权利要求4所述的轨道交通车辆,其特征在于,所述牵引变压器还包括位于两条所述承载杆(41)之间且安装于所述油箱(21)侧面的冷却装置(23)。The rail transit vehicle according to claim 4, wherein the traction transformer further comprises a cooling device (23) located between the two load-bearing rods (41) and mounted on a side of the fuel tank (21).
- 根据权利要求5所述的轨道交通车辆,其特征在于,所述储油柜(22)的宽度和所述冷却装置(23)的宽度均小于所述油箱(21)的宽度,所述加强筋板(42)具体为直角梯形加强筋板,所述直角梯形加强筋板的斜边相对设置且延长线在所述油箱(21)的上方相交。The rail transit vehicle according to claim 5, wherein the width of the oil storage tank (22) and the width of the cooling device (23) are smaller than the width of the fuel tank (21), and the reinforcing ribs The plate (42) is specifically a right-angled trapezoidal stiffener plate, and the hypotenuse of the right-angled trapezoidal stiffener plate is oppositely disposed and the extension line intersects above the fuel tank (21).
- 根据权利要求6所述的轨道交通车辆,其特征在于,所述牵引变压器还包括连接电缆,以及包覆于所述连接电缆外周的防护套。The rail transit vehicle according to claim 6, wherein the traction transformer further comprises a connection cable, and a protective cover covering an outer periphery of the connection cable.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ROA202100026A RO135054B1 (en) | 2018-08-20 | 2018-09-07 | Rail transit vehicle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810947858.7A CN109036783B (en) | 2018-08-20 | 2018-08-20 | Rail transit vehicle |
CN201810947858.7 | 2018-08-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020037722A1 true WO2020037722A1 (en) | 2020-02-27 |
Family
ID=64632059
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2018/104560 WO2020037722A1 (en) | 2018-08-20 | 2018-09-07 | Rail transit vehicle |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN109036783B (en) |
CZ (1) | CZ202121A3 (en) |
RO (1) | RO135054B1 (en) |
WO (1) | WO2020037722A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110428952B (en) * | 2019-09-04 | 2024-07-05 | 中车株洲电机有限公司 | Traction transformer and rail vehicle |
CN115565752A (en) * | 2022-11-08 | 2023-01-03 | 中车株洲电机有限公司 | Traction transformer |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4341574A1 (en) * | 1993-02-27 | 1995-06-08 | Goerlitz Waggonbau Gmbh | Method of loading equipment in railway vehicle roof space |
CN201538317U (en) * | 2009-10-31 | 2010-08-04 | 中国北车集团大连机车研究所有限公司 | Overhead cooling device |
CN105172809A (en) * | 2015-09-10 | 2015-12-23 | 南车株洲电力机车有限公司 | Rail vehicle and vehicle body thereof |
CN205113340U (en) * | 2012-11-26 | 2016-03-30 | 西门子公司 | Carriage parts and have carriage parts and device of settling assembly object above that |
CN106663520A (en) * | 2014-09-12 | 2017-05-10 | Abb瑞士股份有限公司 | Traction transformer |
CN108010670A (en) * | 2017-12-12 | 2018-05-08 | 中车大连机车研究所有限公司 | Tractive transformer cooling system used for rail vehicle based on phase-change heat-exchange technology |
-
2018
- 2018-08-20 CN CN201810947858.7A patent/CN109036783B/en active Active
- 2018-09-07 CZ CZ202121A patent/CZ202121A3/en unknown
- 2018-09-07 RO ROA202100026A patent/RO135054B1/en unknown
- 2018-09-07 WO PCT/CN2018/104560 patent/WO2020037722A1/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4341574A1 (en) * | 1993-02-27 | 1995-06-08 | Goerlitz Waggonbau Gmbh | Method of loading equipment in railway vehicle roof space |
CN201538317U (en) * | 2009-10-31 | 2010-08-04 | 中国北车集团大连机车研究所有限公司 | Overhead cooling device |
CN205113340U (en) * | 2012-11-26 | 2016-03-30 | 西门子公司 | Carriage parts and have carriage parts and device of settling assembly object above that |
CN106663520A (en) * | 2014-09-12 | 2017-05-10 | Abb瑞士股份有限公司 | Traction transformer |
CN105172809A (en) * | 2015-09-10 | 2015-12-23 | 南车株洲电力机车有限公司 | Rail vehicle and vehicle body thereof |
CN108010670A (en) * | 2017-12-12 | 2018-05-08 | 中车大连机车研究所有限公司 | Tractive transformer cooling system used for rail vehicle based on phase-change heat-exchange technology |
Also Published As
Publication number | Publication date |
---|---|
CN109036783A (en) | 2018-12-18 |
CZ202121A3 (en) | 2021-05-12 |
CN109036783B (en) | 2020-11-03 |
RO135054A0 (en) | 2021-06-30 |
RO135054B1 (en) | 2023-09-29 |
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