US20160031454A1 - Connecting Rod Type Two-Level Locking Device, Hopper Car Bottom Door and Hopper Car - Google Patents

Connecting Rod Type Two-Level Locking Device, Hopper Car Bottom Door and Hopper Car Download PDF

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Publication number
US20160031454A1
US20160031454A1 US14/758,737 US201414758737A US2016031454A1 US 20160031454 A1 US20160031454 A1 US 20160031454A1 US 201414758737 A US201414758737 A US 201414758737A US 2016031454 A1 US2016031454 A1 US 2016031454A1
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US
United States
Prior art keywords
hole
locking key
transmission shaft
bent lever
locating pin
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.)
Abandoned
Application number
US14/758,737
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English (en)
Inventor
Chunjiang SHI
Mingdao SUN
Qiangjun JIANG
Fengwei LIU
Baolei WANG
Wenliang LIU
Chuqiang TANG
Ruijin JIANG
Liangcai LIN
Tiejun Fu
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 Yangtze Co Ltd
Original Assignee
CSR Yangtze 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
Application filed by CSR Yangtze Co Ltd filed Critical CSR Yangtze Co Ltd
Assigned to CSR YANGZE CO., LTD. reassignment CSR YANGZE CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FU, TIEJUN, JIANG, Qiangjun, JIANG, RUIJIN, LIN, LIANGCAI, LIU, Fengwei, LIU, Wenliang, SHI, Chunjiang, SUN, MINGDAO, TANG, CHUGIANG, WANG, BAOLEI
Publication of US20160031454A1 publication Critical patent/US20160031454A1/en
Abandoned legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D7/00—Hopper cars
    • B61D7/14—Adaptations of hopper elements to railways
    • B61D7/16—Closure elements for discharge openings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D7/00—Hopper cars
    • B61D7/02—Hopper cars with discharge openings in the bottoms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D7/00—Hopper cars
    • B61D7/14—Adaptations of hopper elements to railways
    • B61D7/16—Closure elements for discharge openings
    • B61D7/24—Opening or closing means
    • B61D7/26—Opening or closing means mechanical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D19/00—Clutches with mechanically-actuated clutching members not otherwise provided for

Definitions

  • the present invention relates to the technical field of rail wagons, and particularly relates to a connecting rod type two-level locking device, a hopper car bottom door and a hopper car.
  • bottom doors are controlled by bottom door opening and closing mechanisms to open and close to achieve an automatic unloading function.
  • the opening, closing and locking of the bottom doors completely depend on the control of the bottom door opening and closing mechanisms.
  • the bottom doors are out of effective control and are completely at a free rotation state, and the bottom doors are liable to automatically open due to vibration in a vehicle operation process, resulting in commodity leakage or automatic unloading to affect the traffic safety.
  • the bottom door opening and closing mechanisms are key components for ensuring the normal unloading of the railroad hopper cars and require convenient opening and closing operations and stable performance, and the existing mechanical impact self-unloading type bottom door opening and closing mechanisms have the above characteristics, thus being widely used on the railroad hopper cars at home and abroad at present. Moreover, corresponding self-locking devices are provided to prevent automatic opening of the bottom doors due to such reasons as vibration and the like or abnormal opening of the bottom doors caused by other factors in a transportation process.
  • the present invention provides a connecting rod type two-level locking device arranged on a hopper car bottom door, which is opened and closed by a planar four-bar linkage passing a dead point, a hopper car bottom door including the connecting rod type two-level locking device and a hopper car including the bottom door.
  • the connecting rod type two-level locking device includes a transmission shaft, a door opening arm, a first roller, a second roller, a first locating pin, a standstill locking disk and a linkage mechanism, wherein the door opening arm includes a master arm and a slave arm, a slotted hole is formed on one end of the master arm, the other end of the master arm is fixedly connected to the transmission shaft, the first locating pin is fixedly connected to the first roller, the first roller forms a sliding pair with the slotted hole through the first locating pin, the second roller is hinged with one end of the slave arm, and the other end of the slave arm is fixedly connected to the transmission shaft;
  • the linkage mechanism includes an unlocking lever, an unlocking connecting rod and a linkage locking pawl, the unlocking lever is provided with an end a and an end b, the unlocking connecting rod is provided with an end c and an end d, the linkage locking pawl is provided with an end m and an end n, the end b of the unlocking lever is hinged with the end c of the unlocking connecting rod, and the end d of the unlocking connecting rod is hinged with the end m of the linkage locking pawl; the middle position of the unlocking lever is hinged with the master arm, the end a of the unlocking lever is lapped on the first roller, and the end n of the linkage locking pawl is hinged with the slave arm; in general, the first locating pin is located at the lower semicircle of the slotted hole, at this time, the end m of the linkage locking pawl
  • the connecting rod type two-level locking device further includes a torsion spring, wherein the torsion spring is sleeved on the hinge point of the end n of the linkage locking pawl and the slave arm in an intercrossing manner, one end of the torsion spring is fixedly connected to the slave arm, the other end of the torsion spring is fixedly connected to the linkage locking pawl, and the torsion spring can provide a standstill locking force to the linkage mechanism.
  • a torsion spring wherein the torsion spring is sleeved on the hinge point of the end n of the linkage locking pawl and the slave arm in an intercrossing manner, one end of the torsion spring is fixedly connected to the slave arm, the other end of the torsion spring is fixedly connected to the linkage locking pawl, and the torsion spring can provide a standstill locking force to the linkage mechanism.
  • a reserved amount is arranged between the end m of the linkage locking pawl and the convex teeth, and the range of the reserved amount is the maximum dead point passing position to the maximum dead point departing position of the door opening arm.
  • the range of the reserved amount is the maximum dead point passing position to the minimum dead point passing position of the door opening arm.
  • the present invention further provides a hopper car bottom door, including the connecting rod type two-level locking device provided by the present invention.
  • the present invention further provides a hopper car, including the hopper car bottom door provided by the present invention.
  • the standstill locking disk and the linkage mechanism are additionally arranged on the basis of the hopper car bottom door, which is opened and closed by the planar four-bar linkage passing the dead point, in general, since the end m of the linkage locking pawl abuts against the convex teeth of the standstill locking disk due to the self-gravity of the first roller and the unlocking lever, the connecting rod type two-level locking device is the truss, even if the first roller is accidently applied with an upward acting force, as long as the first locating pin does not arrive at the upper semicircle of the slotted hole formed on the mater arm and is continuously stressed, the linkage mechanism cannot rotate, and at this time, the slave arm cannot rotate neither.
  • the hopper car bottom door provided by the present invention includes the connecting rod type two-level locking device provided by the present invention, even if the first roller is accidently applied with an upward acting force, as long as the first locating pin does not arrive at the upper semicircle of the slotted hole formed on the mater arm, the linkage mechanism cannot rotate, at this time, the slave arm cannot rotate neither, so that the accidental opening of the hopper car bottom door is avoided.
  • the hopper car provided by the present invention has the hopper car bottom door provided by the present invention, and the accidental opening of the hopper car bottom door can be avoided, so that the application is more reliable.
  • FIG. 1 is a schematic diagram of a structure of a connecting rod type two-level locking device (with linkage mechanism removed) provided by an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a structure of a connecting rod type two-level locking device provided by an embodiment of the present invention, when the end m of a linkage locking pawl abuts against the convex teeth of a standstill locking disk;
  • FIG. 3 is a schematic diagram of a structure of a connecting rod type two-level locking device provided by an embodiment of the present invention, when the end m of a linkage locking pawl just deviates from the convex teeth of a standstill locking disk;
  • FIG. 4 is a schematic diagram of a structure of a connecting rod type two-level locking device provided by an embodiment of the present invention, when a slave arm moves to the limit;
  • FIG. 5 is a schematic diagram of a structure of a reserved amount between the end m of a linkage locking pawl and convex teeth of a connecting rod type two-level locking device provided by an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a structure of a torsion spring and a connection of the torsion spring with a slave arm and a linkage locking pawl of a connecting rod type two-level locking device provided by an embodiment of the present invention.
  • a connecting rod type two-level locking device provided by the present invention includes a transmission shaft 1 , a door opening arm, a first roller 8 , a second roller 10 , a first locating pin 7 , a standstill locking disk 24 and a linkage mechanism, wherein the door opening arm includes a master arm 2 and a slave arm 3 , a slotted hole 6 is formed on one end 4 of the master arm 2 , the other end of the master arm is fixedly connected to the transmission shaft 1 , the first locating pin 7 is fixedly connected to the first roller 8 , the first roller 8 forms a sliding pair with the slotted hole 6 through the first locating pin 7 , the second roller 10 is hinged with one end 5 of the slave arm 3 , the reference number of the hinge point is 9 , and the other end of the slave arm is fixedly connected to the transmission shaft 1 .
  • the standstill locking disk 24 is fixedly connected to the transmission shaft 1 , and convex teeth 25 are arranged at the bottom end of the standstill locking disk 24 .
  • the linkage mechanism includes an unlocking lever 11 , an unlocking connecting rod 15 and a linkage locking pawl 20 , the unlocking lever 11 is provided with an end a 12 and an end b 13 , the unlocking connecting rod 15 is provided with an end c 16 and an end d 17 , the linkage locking pawl 20 is provided with an end m 21 and an end n 22 , the end b 13 of the unlocking lever 11 is hinged with the end c 16 of the unlocking connecting rod 15 , the reference number of the hinge point is 18 , the end d 17 of the unlocking connecting rod 15 is hinged with the end m 21 of the linkage locking pawl 20 , and the reference number of the hinge point is 19 .
  • the middle position of the unlocking lever 11 is hinged with the master arm 2 , the reference number of the hinge point is 14 , the end a 12 of the unlocking lever 11 is lapped on the first roller 8 , and the end n of the linkage locking pawl 20 is hinged with the slave arm 3 .
  • the first locating pin 7 is located at the lower semicircle of the slotted hole 6 , at this time, the end m 21 of the linkage locking pawl 20 abuts against the convex teeth 25 , and the connecting rod type two-level locking device is a truss.
  • the standstill locking disk 24 and the linkage mechanism are additionally arranged on the basis of the hopper car bottom door, which is opened and closed by the planar four-bar linkage passing the dead point, in general, since the end m 21 of the linkage locking pawl 20 abuts against the convex teeth 25 of the standstill locking disk 24 due to the self-gravity of the first roller 8 and the unlocking lever 11 , the connecting rod type two-level locking device is the truss, even if the first roller 8 is accidently applied with an upward acting force, as long as the first locating pin 7 does not arrive at the upper semicircle of the slotted hole 6 formed on the mater arm 2 and is continuously stressed, the linkage mechanism cannot rotate, and at this time, the slave arm 3 cannot rotate neither.
  • the transmission shaft 1 is provided with an eccentricity passing distance, the larger the eccentricity passing distance is, the larger the pressing force of the end m of the linkage locking pawl 20 and the convex teeth 25 of the standstill locking disk 24 is, the larger the acting force needing to be applied to the first roller 1 is, and the better the reliability of the connecting rod type two-level locking device provided by the present invention can be guaranteed.
  • the connecting rod type two-level locking device can further include a torsion spring 29 , the torsion spring 29 is sleeved on the hinge point 23 of the end n 22 of the linkage locking pawl 20 and the slave arm 3 in an intercrossing manner, one end 30 of the torsion spring 29 is fixedly connected to the slave arm 3 , the other end 31 of the torsion spring is fixedly connected to the linkage locking pawl 20 , the torsion spring 29 can provide a standstill locking force to the linkage mechanism, and the standstill locking force is used for preventing the linkage mechanism from rotating together with the self-gravity of the first roller 8 and the unlocking lever 11 , so that the connecting rod type two-level locking device provided by the present invention is more reliable.
  • a reserved amount is arranged between the end m of the linkage locking pawl 20 and the convex teeth 25 , the range of the reserved amount is the maximum dead point passing position 26 to the maximum dead point departing position 28 of the door opening arm, at this time, the connecting rod type two-level locking device can not only be locked in two levels, but also can be applied to new manufacture and overhaul, the reliability and adaptability of the connecting rod type two-level locking device are improved, and the connecting rod type two-level locking device is convenient to overhaul and maintain.
  • a reserved amount away from the dead point of the transmission shaft is considered in the locking position of the linkage locking pawl 20 , and the range of the reserved amount is the maximum dead point passing position 26 to the minimum dead point passing position 27 of the door opening arm.
  • the present invention further provides a hopper car bottom door, including the connecting rod type two-level locking device provided by the present invention.
  • the present invention further provides a hopper car, including the hopper car bottom door provided by the present invention.
  • the hopper car bottom door provided by the present invention includes the connecting rod type two-level locking device provided by the present invention, even if the first roller is accidently applied with an upward acting force, as long as the first locating pin does not arrive at the upper semicircle of the slotted hole formed on the mater arm, the linkage mechanism cannot rotate, at this time, the slave arm cannot rotate neither, so that the accidental opening of the hopper car bottom door is avoided.
  • the hopper car provided by the present invention has the hopper car bottom door provided by the present invention, and the accidental opening of the hopper car bottom door can be avoided, so that the application is more reliable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Lock And Its Accessories (AREA)
  • Support Devices For Sliding Doors (AREA)
US14/758,737 2013-11-15 2014-11-06 Connecting Rod Type Two-Level Locking Device, Hopper Car Bottom Door and Hopper Car Abandoned US20160031454A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201310571352.8A CN103552565B (zh) 2013-11-15 2013-11-15 一种连杆式二级锁闭装置、漏斗车底门及漏斗车
CN201310571352.8 2013-11-15
PCT/CN2014/090411 WO2015070721A1 (zh) 2013-11-15 2014-11-06 一种连杆式二级锁闭装置、漏斗车底门及漏斗车

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/090411 A-371-Of-International WO2015070721A1 (zh) 2013-11-15 2014-11-06 一种连杆式二级锁闭装置、漏斗车底门及漏斗车

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US15/817,093 Continuation US10640133B2 (en) 2013-11-15 2017-11-17 Connecting rod type two-level locking device, hopper car bottom door and hopper car

Publications (1)

Publication Number Publication Date
US20160031454A1 true US20160031454A1 (en) 2016-02-04

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Family Applications (2)

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US14/758,737 Abandoned US20160031454A1 (en) 2013-11-15 2014-11-06 Connecting Rod Type Two-Level Locking Device, Hopper Car Bottom Door and Hopper Car
US15/817,093 Active 2035-05-20 US10640133B2 (en) 2013-11-15 2017-11-17 Connecting rod type two-level locking device, hopper car bottom door and hopper car

Family Applications After (1)

Application Number Title Priority Date Filing Date
US15/817,093 Active 2035-05-20 US10640133B2 (en) 2013-11-15 2017-11-17 Connecting rod type two-level locking device, hopper car bottom door and hopper car

Country Status (4)

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US (2) US20160031454A1 (zh)
CN (1) CN103552565B (zh)
AU (1) AU2014350782B2 (zh)
WO (1) WO2015070721A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107630618A (zh) * 2017-09-14 2018-01-26 乌鲁木齐城市轨道集团有限公司 紧急疏散门开门机构和城轨车辆
CN109864476A (zh) * 2019-03-21 2019-06-11 孙鸣岐 一种自动锁紧椅

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103552565B (zh) 2013-11-15 2016-08-17 中车长江车辆有限公司 一种连杆式二级锁闭装置、漏斗车底门及漏斗车
CN104228856B (zh) * 2014-09-19 2016-08-24 中车长江车辆有限公司 一种锁钩式漏斗车底门二级锁闭装置及漏斗车
CN105569488B (zh) * 2015-12-29 2017-09-26 中车齐齐哈尔车辆有限公司 一种铁路货车及其传动轴止挡装置
CN113247026B (zh) * 2021-06-07 2023-01-17 中车太原机车车辆有限公司 一种铁路石砟漏斗车用底门流量控制装置

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US3625159A (en) * 1969-07-02 1971-12-07 Pullman Inc Manually or automatically actuated closure operating mechanism lock
US4291631A (en) * 1979-04-26 1981-09-29 Pullman Incorporated Railway car side discharge door locking arrangement
CN100548765C (zh) * 2007-12-27 2009-10-14 齐齐哈尔轨道交通装备有限责任公司 漏斗式货车自卸式底门开闭传动机构
CN101758830B (zh) * 2008-12-25 2013-11-06 南车长江车辆有限公司 铁道自翻车侧门控制机构
CN101973278B (zh) * 2010-10-26 2012-05-30 太原轨道交通装备有限责任公司 传动轴防误转动及限位装置
CN103085823B (zh) * 2011-10-28 2015-07-08 齐齐哈尔轨道交通装备有限责任公司 底门启闭机构、底门装置及底开门漏斗车
CN202508092U (zh) * 2011-12-30 2012-10-31 太原轨道交通装备有限责任公司 一种铁路煤炭漏斗车底门开闭机构
CN202743242U (zh) * 2012-08-07 2013-02-20 南车长江车辆有限公司 一种车辆底门开闭装置
CN103303323B (zh) * 2013-06-17 2015-12-23 包头北方创业股份有限公司 一种铁路漏斗式货车底门开闭机构
CN103303324B (zh) * 2013-07-01 2015-08-26 齐齐哈尔轨道交通装备有限责任公司 一种底门开闭机构和底开门铁路货车
CN203580952U (zh) * 2013-11-15 2014-05-07 南车长江车辆有限公司 一种连杆式二级锁闭装置、漏斗车底门及漏斗车
CN103587538B (zh) 2013-11-15 2016-08-17 中车长江车辆有限公司 一种二级锁闭装置、漏斗车底门及漏斗车
CN103552565B (zh) * 2013-11-15 2016-08-17 中车长江车辆有限公司 一种连杆式二级锁闭装置、漏斗车底门及漏斗车

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107630618A (zh) * 2017-09-14 2018-01-26 乌鲁木齐城市轨道集团有限公司 紧急疏散门开门机构和城轨车辆
CN109864476A (zh) * 2019-03-21 2019-06-11 孙鸣岐 一种自动锁紧椅

Also Published As

Publication number Publication date
CN103552565A (zh) 2014-02-05
WO2015070721A1 (zh) 2015-05-21
US20180072333A1 (en) 2018-03-15
AU2014350782A1 (en) 2015-07-16
AU2014350782B2 (en) 2016-12-22
US10640133B2 (en) 2020-05-05
CN103552565B (zh) 2016-08-17

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Date Code Title Description
AS Assignment

Owner name: CSR YANGZE CO., LTD., CHINA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LIU, FENGWEI;LIN, LIANGCAI;LIU, WENLIANG;AND OTHERS;REEL/FRAME:036824/0726

Effective date: 20150630

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION