EP3696045B1 - Locking mechanism for point machine - Google Patents

Locking mechanism for point machine Download PDF

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Publication number
EP3696045B1
EP3696045B1 EP19768993.8A EP19768993A EP3696045B1 EP 3696045 B1 EP3696045 B1 EP 3696045B1 EP 19768993 A EP19768993 A EP 19768993A EP 3696045 B1 EP3696045 B1 EP 3696045B1
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EP
European Patent Office
Prior art keywords
locking
block
action
outer cylinder
cylinder sleeve
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.)
Active
Application number
EP19768993.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3696045A4 (en
EP3696045A1 (en
Inventor
Shuren YANG
Shangchao Liu
Kezheng XU
Tianxin HUANG
Xiaoyong Sun
Yulin Zhang
Siyi XUE
Shuang TIAN
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.)
CRSC Research and Design Institute Group Co Ltd
Original Assignee
CRSC Research and Design Institute Group Co Ltd
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Filing date
Publication date
Application filed by CRSC Research and Design Institute Group Co Ltd filed Critical CRSC Research and Design Institute Group Co Ltd
Priority to RS20230046A priority Critical patent/RS63976B1/sr
Priority to HRP20230025TT priority patent/HRP20230025T1/hr
Publication of EP3696045A1 publication Critical patent/EP3696045A1/en
Publication of EP3696045A4 publication Critical patent/EP3696045A4/en
Application granted granted Critical
Publication of EP3696045B1 publication Critical patent/EP3696045B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/10—Locking mechanisms for points; Means for indicating the setting of points
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/04—Fluid-pressure devices for operating points or scotch-blocks

Definitions

  • the present invention belongs to the technical field of rail transit, and particularly relates to a locking mechanism for a point machine.
  • the point machine is an important railway turnout switching device and is used for switching and locking a turnout, changing an opening direction of the turnout and performing supervision and inspection on a position of the turnout.
  • the point machine is an important guarantee for ensuring railway driving safety and improving transportation efficiency.
  • the locking mechanism is a key component in the point machine, and the point machine locks the turnout through the locking mechanism.
  • the comparison file CN104494647A describes the commonly-used locking mechanism of a point machine in China, where two locking blocks are mounted on an action rod of the locking mechanism through a pin shaft. In such a locking manner, the locking blocks rotate around the pin shaft, and forces among a locking iron, the action rod and the locking blocks of the point machine are continuously changed in the turnout switching process. The forces are not balanced, and locking reinforcement is gradually increased for the point machine in the locking process.
  • the present invention provides a locking mechanism for a point machine as defined in the attached independent claim.
  • the locking mechanism includes a locking iron, an action rod, an action block, a locking block group, an oil cylinder assembly, a damping mechanism and a housing.
  • a first groove and a second groove are configured on one side of the locking iron, the first groove and the second groove have a same shape.
  • the locking block group includes a first locking block and a second locking block, the action block is provided with two sliding grooves, the first locking block and the second locking block are respectively mounted in the two sliding grooves, and the action rod is fixedly connected to the action block.
  • One side of the locking iron is in sliding fit with one side of the action block, the other side of the action block is in sliding fit with one end of an outer cylinder sleeve of the oil cylinder assembly, and an inclined plane protrusion structure is provided at asymmetry center of one end of the outer cylinder sleeve.
  • the damping mechanism is provided between the locking iron and the outer cylinder sleeve.
  • the damping mechanism includes a friction block, a spring and a mandrel, both one end of the spring and one end of the mandrel are fixedly connected to one side of the locking iron, the other end of the spring is fixedly connected to one end of the friction block, the other end of the friction block is attached to one end of the outer cylinder sleeve, and the spring is sleeved on the mandrel.
  • first locking block and the second locking block may have a same structure and a same size, the first locking block and the second locking block have a diamond structure.
  • the oil cylinder assembly may further include a piston rod and an oil cylinder body, where the piston rod is fixed in the housing, and the outer cylinder sleeve (5-1) is sleeved on the oil cylinder body.
  • the locking iron may be fixedly mounted in the housing; the outer cylinder sleeve and the action rod each are slidably connected to the housing, and two ends of the action rod are connected to a turnout.
  • the locking iron, the locking blocks, the action rod, the action block and the outer cylinder sleeve work together to implement the locking function of the point machine, so that after the turnout switching is completed, the locking mechanism can provide a reliable and stable supporting force for locking, the turnout is locked at a termination position, and the safety stability of the point machine is thus improved.
  • the two locking blocks are not connected to the action rod through the pin shaft, the locking reinforcement of the locking blocks is small and is kept constant in the locking process, and the locking is more reliable.
  • the two locking blocks are simple in structure, small in size and convenient to dismount and maintain.
  • a hydraulic point machine is taken as an example for illustration, but the locking mechanism described in the present invention is also applicable to other point machines.
  • the specific working principle is as follows: a piston rod of an oil cylinder assembly is fixed in a housing, an oil cylinder body is configured to drive an outer cylinder sleeve 5-1 to act, and the outer cylinder sleeve 5-1 pushes a lock block group to act; and further, an action rod 2 and an action block 3 are driven to move, and the action rod 2 is connected to a turnout so as to drive the turnout to move; and further, at a termination position of one side, the outer cylinder sleeve 5-1, a locking iron 1 and the lock block group jointly work to complete the locking function of the point machine, so that switching and locking of the turnout are implemented.
  • FIG. 1 , FIG. 2 and FIG. 3 are respectively a diagram illustrating locking performed by a locking mechanism at a left termination position, a diagram illustrating switching performed by a locking mechanism at an intermediate position, and a diagram illustrating locking performed by a locking mechanism at a right termination position, i.e., action diagrams of a main locking mechanism of the point machine, which however do not depict the damping mechanism of the current invention.
  • the outer cylinder sleeve 5-1 of the oil cylinder assembly moves rightwards, a right inclined plane of an inclined plane protrusion structure on the outer cylinder sleeve 5-1 is in contact with an inclined plane of a second locking block 4-2, the outer cylinder sleeve 5-1 continues to move rightwards, the second locking block 4-2 is pushed, and an action block 3 is driven to act together.
  • the action block 3 is connected to and moves synchronously with the action rod 2.
  • a first locking block 4-1 exits from a first groove 1-1 of the locking iron 1, and unlocking is completed.
  • the outer cylinder sleeve 5-1 continues to act until the second lock block 4-2 slides to a second groove 1-2 of the locking iron 1. At this moment, the second lock block 4-2 is pushed into the second groove 1-2 by the inclined plane protrusion structure on the outer cylinder sleeve 5-1 to complete right-side locking.
  • the outer cylinder sleeve 5-1 continues to act to enable the second lock block 4-2 to reach a certain locking depth, and the second locking block 4-2 is prevented from exiting from the second groove 1-2, and thus unlocking is prevented. That is, the switching from locking at the left termination position to locking at the right termination position is completed.
  • the same action principle applies when the outer cylinder sleeve 5-1 switches from the right termination locking position to the left termination locking position.
  • FIG. 4 is a structural diagram of a damping mechanism according to the present invention.
  • the damping mechanism includes a friction block 6-1, a spring 6-2 and a mandrel 6-3. After the point machine arrives at the termination position, the friction block 6-1 exerts a certain holding force through the springs 6-2, so that a certain friction force is generated between friction block 6-1 and the outer cylinder sleeve 5-1, and the outer cylinder sleeve 5-1 is kept at the locking position.
  • the outer cylinder sleeve 5-1 can only move in the reverse direction when the friction force generated between the outer cylinder sleeve 5-1 and the friction block 6-1 is overcome, so as to ensure that the point machine is kept at the locking position after being in place.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Railway Tracks (AREA)
  • Fluid-Damping Devices (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Lock And Its Accessories (AREA)
  • Liquid Developers In Electrophotography (AREA)
EP19768993.8A 2019-01-03 2019-09-04 Locking mechanism for point machine Active EP3696045B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
RS20230046A RS63976B1 (sr) 2019-01-03 2019-09-04 Mehanizam za blokiranje za postavnu spravu
HRP20230025TT HRP20230025T1 (hr) 2019-01-03 2019-09-04 Mehanizam zaključavanja za pogon skretnice

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910005651.2A CN109849966B (zh) 2019-01-03 2019-01-03 一种用于转辙机的锁闭机构
PCT/CN2019/104358 WO2020140467A1 (zh) 2019-01-03 2019-09-04 一种用于转辙机的锁闭机构

Publications (3)

Publication Number Publication Date
EP3696045A1 EP3696045A1 (en) 2020-08-19
EP3696045A4 EP3696045A4 (en) 2021-12-01
EP3696045B1 true EP3696045B1 (en) 2023-01-11

Family

ID=66893933

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19768993.8A Active EP3696045B1 (en) 2019-01-03 2019-09-04 Locking mechanism for point machine

Country Status (6)

Country Link
EP (1) EP3696045B1 (hu)
CN (1) CN109849966B (hu)
HR (1) HRP20230025T1 (hu)
HU (1) HUE061451T2 (hu)
RS (1) RS63976B1 (hu)
WO (1) WO2020140467A1 (hu)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109849966B (zh) * 2019-01-03 2020-09-08 北京全路通信信号研究设计院集团有限公司 一种用于转辙机的锁闭机构
CN114802348B (zh) * 2022-03-31 2023-12-29 西安铁路信号有限责任公司 一种转辙机锁闭可靠性的监测方法
CN116039704B (zh) * 2023-03-07 2023-08-11 北京全路通信信号研究设计院集团有限公司 锁闭装置及转辙机

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001122117A (ja) * 1999-10-25 2001-05-08 Nippon Signal Co Ltd:The 転てつ装置
ITFI20030296A1 (it) * 2003-11-19 2005-05-20 Ge Transp Systems S P A Cassa di manovra per scambi ferroviari
AT501894B1 (de) * 2005-05-27 2006-12-15 Metall Und Kunststoffwaren Erz Antriebssystem für eine schienenweiche
CN201516859U (zh) * 2009-07-28 2010-06-30 西安铁路信号工厂 无增力转换锁闭装置
NL1039271C2 (nl) * 2011-12-28 2013-07-01 Richard Roos Winterproof spoorwegwissel/spoorwegkruising.
CN202879524U (zh) * 2012-11-16 2013-04-17 北京中铁通电务技术开发有限公司 一种转辙机锁闭机构
CN203567758U (zh) * 2013-11-12 2014-04-30 西安铁路信号有限责任公司 一种模块化道岔转辙机
CN104029696B (zh) * 2013-11-12 2016-08-17 西安铁路信号有限责任公司 一种道岔转辙机
CN203681579U (zh) * 2013-12-31 2014-07-02 西安铁路信号有限责任公司 一种具有可调摩擦阻尼器的转换锁闭机构
CN104494647B (zh) * 2014-12-20 2017-04-05 太原市京丰铁路电务器材制造有限公司 一种电动液压转辙机
CN205311635U (zh) * 2015-12-11 2016-06-15 天津辉煌路阳科技有限公司 转辙机的闭锁结构
CN207550219U (zh) * 2017-10-31 2018-06-29 西门子信号有限公司 转辙机的接点组件的驱动机构、接点组件及转辙机
CN109849966B (zh) * 2019-01-03 2020-09-08 北京全路通信信号研究设计院集团有限公司 一种用于转辙机的锁闭机构

Also Published As

Publication number Publication date
HRP20230025T1 (hr) 2023-04-14
RS63976B1 (sr) 2023-03-31
CN109849966A (zh) 2019-06-07
WO2020140467A1 (zh) 2020-07-09
EP3696045A4 (en) 2021-12-01
CN109849966B (zh) 2020-09-08
HUE061451T2 (hu) 2023-06-28
EP3696045A1 (en) 2020-08-19

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