EP3744604A1 - Élément automoteur et système de sablage et de lubrification pour celui-ci - Google Patents

Élément automoteur et système de sablage et de lubrification pour celui-ci Download PDF

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Publication number
EP3744604A1
EP3744604A1 EP20756740.5A EP20756740A EP3744604A1 EP 3744604 A1 EP3744604 A1 EP 3744604A1 EP 20756740 A EP20756740 A EP 20756740A EP 3744604 A1 EP3744604 A1 EP 3744604A1
Authority
EP
European Patent Office
Prior art keywords
sand
pipe
lubricating
chassis
lubrication system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20756740.5A
Other languages
German (de)
English (en)
Other versions
EP3744604A4 (fr
Inventor
Fenglong YAO
Zhilong Wang
Xiaofan Zhang
Jingtian GAO
Yangkun ZHAO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CRRC Changchun Railway Vehicles Co Ltd
Original Assignee
CRRC Changchun Railway Vehicles Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201920243124.0U external-priority patent/CN209700688U/zh
Priority claimed from CN201910141731.0A external-priority patent/CN109849962B/zh
Application filed by CRRC Changchun Railway Vehicles Co Ltd filed Critical CRRC Changchun Railway Vehicles Co Ltd
Publication of EP3744604A1 publication Critical patent/EP3744604A1/fr
Publication of EP3744604A4 publication Critical patent/EP3744604A4/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
    • B61K3/00—Wetting or lubricating rails or wheel flanges
    • B61K3/02—Apparatus therefor combined with vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C15/00—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels
    • B61C15/08—Preventing wheel slippage
    • B61C15/10—Preventing wheel slippage by depositing sand or like friction increasing materials

Definitions

  • the present application relates to the technical field of railway transportation, and in particular to an ELECTRIC MULTIPLE UNIT and a sand lubrication system thereof.
  • EMU electric multiple unit
  • the wear of rims of its wheels will be intensified, which will increase the times and maintenance costs for maintaining and grinding the wheels, and at the same time, increase the noise of the EMU in bends and tunnels, and greatly increase the risk of the wheels going off the rail.
  • the braking process of the EMU the problem of wheel slipping is inevitable. With the increase of the vehicle speed, the probability of wheel slipping increases.
  • a first object of the present application is to provide a sand lubrication system, which can reduce the wear of the wheels of the EMU and reduce the slipping probability of the EMU during braking.
  • a second object of the present application is to provide an EMU.
  • a sand lubrication system which is used for the EMU, includes:
  • the lubricant supply device includes a drive pump, an oil-gas mixing module and a distributor; the drive pump is configured to pump the lubricant into the oil-gas mixing module; and the distributor is mounted on the lubricating pipe and is in communication with an outlet of the oil-gas mixing module through the lubricating pipe, and two outlets of the distributor are respectively in communication with the fuel spray nozzles at two sides through the lubricating pipe.
  • the distributor includes a vertical distribution valve and a horizontal distribution valve; and the vertical distribution valve and the horizontal distribution valve are vertically arranged, an inlet of the vertical distribution valve is in communication with the oil-gas mixing module through the lubricating pipe, an inlet of the horizontal distribution valve is in communication with an outlet of the vertical distribution valve, and two outlets of the horizontal distribution valve are in communication with the fuel spray nozzle.
  • the lubricating pipe includes a lubricating hard pipe and a lubricating soft pipe; and the distributor is arranged on the lubricating hard pipe, one end of the lubricating soft pipe is in communication with the lubricating hard pipe, and another end of the lubricating soft pipe is in communication with the fuel spray nozzle; and/or the sand pipe includes a sand soft pipe and a sand hard pipe; one end of the sand hard pipe is in communication with the sand box; and another end of the sand hard pipe is in communication with the sand soft pipe through a partition straight joint mounted on the baffle.
  • the lubricating soft pipe is arranged in a U shape.
  • the sand lubrication system includes multiple connecting plates; and the connecting plates are mounted on the chassis, and the lubricating pipe and the sand pipe are both fixed on the connecting plates.
  • the sand lubrication system further includes tensioning devices and pipe clamps; the pipe clamps are respectively fixed on the sand soft pipe and the lubricating soft pipe, and each of the tensioning devices has one end connected with the corresponding pipe clamp, and another end connected with the chassis.
  • the tensioning device includes a lifting socket, a lug, a wire rope and a rope puller; the lifting socket is fixed on the chassis; one end of the lug is fixed on the lifting socket, and another end of the lug is connected with the wire rope; one end of the rope puller is connected with the wire rope, and another end of the rope puller is connected with the pipe clamp, and/or each of the pipe clamps is an adjustable metal buckle.
  • the sand lubrication system further includes a sand dry-air pipe; the sand dry-air pipe is fixed together with the sand pipe; and/or the sand lubrication system further includes a felt strip; and the felt strip is configured to cover the lubricating soft pipe.
  • the materials in the sand box are delivered to the sand spray nozzle through the sand pipe, and are sprayed to the wheels through the sand spray nozzle to improve the adhesive coefficient between the wheels and rails.
  • the lubricant is delivered by the lubricant supply device to the fuel spray nozzle through the lubricating pipe, and is sprayed to the rims of the wheels through the fuel spray nozzle, which reduces the wear of the rims of the wheels, thus reducing the times and maintenance costs for maintaining and grinding the wheels, reducing the noise of the EMU in bends and tunnels, and reducing the risk of the wheels going off the rail.
  • the sand box is integrated with the chassis of the EMU. Therefore, the reliable mounting of the sand lubrication system can be realized even if the baffle is mounted between the bogie and the dynamic front end of the chassis of the EMU, and the space for mounting the sand lubrication system is narrow.
  • An EMU includes a chassis, a bogie and the sand lubrication system as described in any one of the above; and the bogie is rotatably mounted on the chassis, a baffle is arranged between the bogie and the dynamic front end of the chassis, and multiple guide grooves are opened on the baffle.
  • the EMU according to the present application includes any one of the above-mentioned sand lubrication systems, the beneficial effects of the above-mentioned sand lubrication system are all included in the EMU according to the present application.
  • the present application discloses a sand lubrication system used for an EMU. Since the braking and lubrication of the EMU are mainly on the head vehicle of the EMU, the sand lubrication system disclosed by the present application is often used on the head vehicle of the EMU, and it should be noted that it may also be mounted on other vehicle bodies that require lubrication and braking.
  • the sand lubrication system includes a sand box 1, a sand pipe 5, a sand spray nozzle, a lubricant supply device, a lubricating pipe 7 and a fuel spray nozzle.
  • the EMU includes a chassis 2 and a bogie 3, the bogie 3 is rotatably mounted on the chassis 2, and a baffle 4 is arranged between the bogie 3 and the dynamic front end of the chassis 2 to improve the dynamic performance of the EMU and reduce the running resistance of the EMU.
  • the sand box 1 is arranged between the bogie 3 and the dynamic front end of the chassis 2, and the sand box 1 is integrated with the chassis 2.
  • the sand box 1 may be welded with the chassis 2 or integrally formed, which avoids the shaking of the sand box along with the vibration of the EMU, further avoids the shaking of the sand pipe 5, and improves the service life of the sand pipe 5.
  • One end of the sand pipe 5 is in communication with the outlet at the bottom of the sand box 1, and another end of the sand pipe 5 is in communication with the sand spray nozzle by passing through the baffle 4, and the sand spray nozzle may spray the materials delivered by the sand pipe 5 to the wheels 6 on the bogie 3.
  • the present application further discloses that the height of the sand spray pipe is higher than that of the sand spray nozzle.
  • the lubricant supply device is arranged between the bogie 3 and the dynamic front end of the chassis 2, and the lubricant supply device is mounted on the chassis 2.
  • the lubricant supply device may be any structure capable of supplying lubricant to the fuel spray nozzle.
  • One end of the lubricating pipe 7 is in communication with the outlet of the lubricant supply device, and another end of the lubricating pipe 7 is in communication with the fuel spray nozzle by bypassing the baffle 4, and the fuel spray nozzle may spray the lubricant delivered by the lubricating pipe 7 on the rims of the wheels 6.
  • the materials in the sand box 1 are delivered to the sand spray nozzle through the sand pipe 5, and are sprayed to the wheels 6 through the sand spray nozzle to improve the adhesive coefficient between the wheels and rails.
  • the lubricant is delivered by the lubricant supply device to the fuel spray nozzle through the lubricating pipe 7, and is sprayed to the rims of the wheels 6 through the fuel spray nozzle, which reduces the wear of the rims of the wheels 6, thus reducing the times and maintenance costs for maintaining and grinding the wheel 6, reducing the noise of the EMU in bends and tunnels, and reducing the risk of the wheels 6 going off the rail.
  • the sand box 1 of the present application is integrated with the chassis 2 of the EMU. Therefore, the reliable mounting of the sand lubrication system can be realized even if the baffle 4 is mounted between the bogie 3 and the dynamic front end of the chassis 2 of the EMU, and the space for mounting the sand lubrication system is narrow.
  • the structure of the sand lubrication system in this embodiment is similar to that in the first embodiment, so the similarities will not be described again, and only the differences will be introduced.
  • the application specifically discloses that the lubricant supply device includes a drive pump, an oil-gas mixing module and a distributor 8.
  • the drive pump can pump lubricant into the oil-gas mixing module.
  • the distributor 8 is mounted on the lubricating pipe 7, and is in communication with the outlet of the oil-gas mixing module through the lubricating pipe 7.
  • the two outlets of the distributor 8 are respectively in communication with the fuel spray nozzles on both sides through the lubricating pipe 7, so as to spray lubricant on the wheels 6 on both sides of the EMU.
  • the drive pump may be a pneumatic plunger pump. It should be noted that it may also be other types of pumps.
  • the drive pump is a pneumatic plunger pump as an example.
  • the lubricant is pumped into the oil-gas mixing module by the pneumatic plunger pump, and the lubricant and air are mixed in the oil-gas mixing module. Under the action of compressed air, the lubricant is delivered along the inner wall of the lubricating pipe 7, distributed by the distributor 8 and then supplied to the fuel spray nozzle, from which the lubricant is sprayed onto the rims of the wheels 6.
  • the distributor 8 includes a vertical distribution valve 801 and a horizontal distribution valve 802.
  • the vertical distribution valve 801 and the horizontal distribution valve 802 are vertically arranged to realize the steering of the lubricating pipe 7.
  • the inlet of the vertical distribution valve 801 is in communication with the oil-gas mixing module through the lubricating pipe 7
  • the inlet of the horizontal distribution valve 802 is in communication with the outlet of the vertical distribution valve 801
  • the two outlets of the horizontal distribution valve 802 are in communication with the fuel spray nozzle.
  • the lubricating pipe 7 includes a lubricating hard pipe 701 and a lubricating soft pipe 702.
  • the distributor 8 is mounted on the lubricating hard pipe 701.
  • One end of the lubricating soft pipe 702 is in communication with the lubricating hard pipe 701, and another end of the lubricating soft pipe 702 is in communication with the fuel spray nozzle.
  • the lubricating soft pipe 702 is arranged in a U shape.
  • the sand pipe 5 includes a sand soft pipe 501 and a sand hard pipe 502.
  • One end of the sand hard pipe 502 is in communication with the sand box 1, and another end of the sand hard pipe 502 is in communication with the sand soft pipe 501 through a partition straight joint 14 mounted on the baffle 4.
  • the present application discloses that the sand lubrication system includes multiple connecting plates 9.
  • the connecting plates 9 are mounted on the chassis 2, and both the lubricating pipe 7 and the sand pipe 5 are fixed on the connecting plates 9.
  • Each of the connecting plates 9 is specifically a strip-shaped plate, through which both the lubricating pipe 7 and the sand pipe 5 are fixed on the chassis 2, thus realizing the compact connection between the lubricating pipe 7 and the sand pipe 5.
  • the sand lubrication system includes tensioning devices 10 and pipe clamps 11.
  • the pipe clamps 11 are respectively fixed on the sand soft pipe 501 and the lubricating soft pipe 702.
  • Each of the tensioning devices 10 has one end connected with the corresponding pipe clamp 11, and another end connected with the chassis 2.
  • each of the pipe clamps 11 is a metal pipe clamp.
  • each of the tensioning devices 10 includes a lifting socket, a lug, a wire rope and a rope puller.
  • the lifting socket is fixed on the chassis 2.
  • the lifting socket is welded on the chassis 2 which improves the mounting strength of the lifting socket and the chassis 2.
  • the lifting socket may be detachably connected to the chassis 2 by screws or the like.
  • One end of the lug is fixed on the lifting socket, and another end of the lug is connected with the wire rope.
  • One end of the rope puller is connected with the wire rope, and another end of the rope puller is connected with the metal pipe clamp 11.
  • the sand soft pipe 501 and the lubricating soft pipe 702 are easy to shake with the vibration of the EMU. With the tightening action of the tightening device 10, on the one hand, the sagging of the sand soft pipe 501 and the lubricating soft pipe 702 is avoided, and on another hand, the shaking amplitude of the sand soft pipe 501 and the lubricating pipe 702 is reduced.
  • a lifting socket is provided with multiple lifting rings for fixing lugs, and the multiple lifting rings are uniformly distributed to realize the connection and adjustment of the pipe clamps 11 at different positions.
  • the sand lubrication system includes a sand dry-air pipe 12.
  • the sand dry-air pipe 12 and the sand pipe 5 are fixed together to realize the drying of the borax in the sand pipe 5.
  • the sand lubrication system includes a felt strip 13.
  • the felt strip 13 covers the lubricating soft pipe 702 to reduce wear on the lubricating soft pipe 702.
  • the felt strip 13 can also cover the sand soft pipe 501 to reduce wear on the sand soft pipe 501.
  • a baffle 4 is added between the lower part of the dynamic front end and the bogie 3 of the EMU.
  • the sand pipe 5 is connected to the sand box 1 and is fastened.
  • the baffle 4 is mounted, and then the tensioning device 10 is assembled.
  • the pipe clamp 11 and a hanger plate are mounted on the tensioning device 10.
  • a suitable distance is chosen to cover the lubricating soft pipe 702 with a felt strip 13 for protection, and then the pipe clamp 11 and the hanger plate are connected to the wire rope of the sand soft pipe 501 through the tensioning device 10.
  • a suitable distance is further chosen and a set of such tensioning device 10 is added, and the tensioning device 10 is finally connected to the gas path port of the fuel spray nozzle of the bogie 3. If the distance is not suitable, it will be determined after the vehicle completes the small curve test. In this manner, the lubricating soft pipe 702 will swing along with the bogie 3 and the sand soft pipe 501 to avoid interference. Under the condition of limited space, the reasonable arrangement of the sand pipe 5 and the lubricating pipe 7 is realized, and the sand and rim lubrication functions of the head vehicle are realized.
  • the sand box 1 is directly integrated on the vehicle body and is integrated with the dynamic front end of the vehicle body, and a baffle 4 is added between the dynamic front end and the bogie 3, so that the rim lubrication and the sand pipe 5 respectively go through two pipelines, and a fixed point (the connection point between the tensioning device 10 and the lubricating pipe 7) is added to the lubricating pipe 7. Due to the limited space between the bogie 3 and the baffle 4, the lubricating soft pipe 702 is connected in U shape.
  • both the lubricating hard pipe 701 and the sand hard pipe 502 are connected to the chassis 2 through the connecting plate 9 to make the horizontal straight section of the lubricating hard pipe 701 as close as possible to the baffle 4.
  • the lubricating soft pipe 702 is covered with the felt strip 13 for protection, and two sets of fixing devices are added to connect with the wire rope, thus a consistent swing can be maintained as the bogie 3 swings, thereby effectively avoiding the interference of abrasion and collision.
  • the sand pipe 5 is connected by the partition straight joint 14 on a vertical partition of the baffle 4, passes between the dynamic front end and the baffle 4, and is fixed by a bracket welded below the dynamic front end.
  • the assembly error is effectively reduced because the sand box 1 and the chassis 2 are integrated.
  • the reliability of the connection between the lubricating pipe 7 and the bogie 3 is solved, and the reliable work of the sand lubrication system can be ensured when the EMU goes through turnouts and bends.
  • the present application provides an EMU, including a chassis 2, a bogie 3 and the sand lubrication system according to any one of the above embodiments.
  • the bogie 3 may be rotatably mounted on the chassis 2, and a baffle 4 is arranged between the bogie 3 and the dynamic front end of the chassis 2. Multiple guide grooves are opened on the baffle 4 to improve the dynamic performance of the EMU and reduce the running resistance of the EMU
  • the EMU according to the present application includes the sand lubrication system according to any one of the above embodiments, the beneficial effects of the sand lubrication system are all included in the EMU according to the present application.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Nozzles (AREA)
  • Braking Arrangements (AREA)
EP20756740.5A 2019-02-26 2020-01-16 Élément automoteur et système de sablage et de lubrification pour celui-ci Withdrawn EP3744604A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201920243124.0U CN209700688U (zh) 2019-02-26 2019-02-26 一种动车组及其撒砂润滑系统
CN201910141731.0A CN109849962B (zh) 2019-02-26 2019-02-26 一种动车组及其撒砂润滑系统
PCT/CN2020/072390 WO2020173239A1 (fr) 2019-02-26 2020-01-16 Élément automoteur et système de sablage et de lubrification pour celui-ci

Publications (2)

Publication Number Publication Date
EP3744604A1 true EP3744604A1 (fr) 2020-12-02
EP3744604A4 EP3744604A4 (fr) 2022-02-09

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Application Number Title Priority Date Filing Date
EP20756740.5A Withdrawn EP3744604A4 (fr) 2019-02-26 2020-01-16 Élément automoteur et système de sablage et de lubrification pour celui-ci

Country Status (4)

Country Link
EP (1) EP3744604A4 (fr)
MY (1) MY203656A (fr)
SG (1) SG11202007938UA (fr)
WO (1) WO2020173239A1 (fr)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5934550B2 (ja) * 1979-09-12 1984-08-23 稔 神谷 粘着駆動による省エネルギ−走行方法
US5477941A (en) * 1994-03-15 1995-12-26 Tranergy Corporation On-board lubrication system for direct application to curved and tangent railroad track
US6893058B2 (en) * 2002-10-18 2005-05-17 General Electric Company Railway train friction management and control system and method
CN203888791U (zh) * 2014-05-05 2014-10-22 南车株洲电力机车有限公司 一种轨道车辆、转向架及其撒砂与轮缘润滑安装总成
CN203888826U (zh) * 2014-05-27 2014-10-22 绍兴柯桥江滨水处理有限公司 一种往返式吸泥机的钢轨润滑装置
CN205890880U (zh) * 2016-08-26 2017-01-18 成都市新筑路桥机械股份有限公司 一种100%低地板列车撒砂和轮缘润滑集成系统
CN106882198A (zh) * 2017-03-22 2017-06-23 中车太原机车车辆有限公司 一种工程车用液压驱动米轨转向架
CN107415964B (zh) * 2017-05-18 2024-01-30 中车青岛四方机车车辆股份有限公司 一种轨道车辆撒砂排障器的安装装置
CN108189856A (zh) * 2018-01-22 2018-06-22 中车长春轨道客车股份有限公司 快速大轴重载荷客车动力转向架
CN109849962B (zh) * 2019-02-26 2024-07-30 中车长春轨道客车股份有限公司 一种动车组及其撒砂润滑系统
CN209700688U (zh) * 2019-02-26 2019-11-29 中车长春轨道客车股份有限公司 一种动车组及其撒砂润滑系统

Also Published As

Publication number Publication date
SG11202007938UA (en) 2020-10-29
EP3744604A4 (fr) 2022-02-09
MY203656A (en) 2024-07-11
WO2020173239A1 (fr) 2020-09-03

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