CN107839717B - Switch structure of urban rail transit - Google Patents
Switch structure of urban rail transit Download PDFInfo
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- CN107839717B CN107839717B CN201711085972.5A CN201711085972A CN107839717B CN 107839717 B CN107839717 B CN 107839717B CN 201711085972 A CN201711085972 A CN 201711085972A CN 107839717 B CN107839717 B CN 107839717B
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- track
- turnout
- plate
- connecting piece
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- 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
- B61L5/06—Electric devices for operating points or scotch-blocks, e.g. using electromotive driving means
- B61L5/065—Construction of driving mechanism
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- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention discloses a turnout structure of urban rail transit, wherein a rail-changing component is arranged between two turnout rail components, the rail-changing component adopts a cam mode of a cam barrel and a cam groove to realize the driving movement of a rail-changing driving plate, the rail-changing driving plate realizes the control of the left and right movement of the turnout rail components to realize the switching, and the tail end of the turnout rail component adopts a micro-rotation damping component to be installed on a rail sleeper. The turnout is arranged on the micro-rotation damping assembly, and can swing slightly when the turnout is subjected to turnout change, so that the problem of turnout fatigue caused by overlarge rigid force on the turnout is solved, and the service life of the turnout and the adaptability of turnout change are greatly improved.
Description
Technical Field
The invention relates to a turnout structure of urban rail transit, and belongs to the technical field of traffic transportation equipment.
Background
In rail transit, a turnout is a line connection device for a rolling stock to turn from one track to another, and is one of weak links of a track, and is usually laid in a large number at a station and a marshalling station. With the turnout, the passing capacity of the line can be fully exerted. Even if a single-track railway is used, a turnout is paved, and a section of fork line with the length larger than that of a train is constructed, so that the train can be split. Turnouts play an important role on railway lines. The switch structure of the purpose mostly adopts the lead screw to realize the lane change, for example, Chinese patent CN205917534U discloses a switch based on urban rail transit, its rail-changing device adopts the servo motor, the output shaft of the servo motor is connected with the lead screw, the lead screw is connected with the movable plate in a matching way, the top of the movable plate is connected with the connecting shaft, the servo motor works, then the lead screw drives the movable plate to move left and right, thereby the switch rail can be controlled to move left and right, to realize the lane change left or right, however, the rail-changing of the switch of the structure adopts the lead screw to drive, because the wheel can produce very large vibration force during the rail-changing, the lead screw driving can easily lead to the lead screw abrasion, the life of the light person can be reduced, the lane-changing function can be influenced, therefore, the rail-changing device needs to be improved, meanwhile, the present switch can easily ensure the switch position can not be accurately after long-time use, the turnout is easy to deform under vibration due to the rigid action, and the turnout is influenced to change lanes.
Aiming at the problems, the invention provides a turnout structure of urban rail transit, so as to prevent the turnout from deforming and improve the self-adaptive capacity on the basis of improving the service life and the rail-changing accuracy of rail-changing.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: a turnout structure of urban rail transit comprises a first rail component, a second rail component, a turnout rail component and a rail transfer component, wherein the track I component comprises two track I which are arranged symmetrically left and right, the turnout track component is arranged between the two track I in pairs, the tail end of the turnout track assembly is provided with a track II of the track II assembly, a track transfer assembly is arranged between the two turnout track assemblies, it is characterized in that the track transfer component adopts a cam mode of a cam barrel and a cam groove to realize the driving movement of the track transfer driving plate, the track transfer driving plate realizes the control of the left and right movement of the turnout track component, thereby realizing the track change, the tail end of the turnout track assembly is arranged on the track sleeper by adopting a micro-rotation damping assembly, the micro-rotation damping assembly allows the turnout track assembly to slightly swing at-3-3 degrees.
Further, as a preferred option, the track transfer assembly comprises a bottom plate, a sliding guide plate, a vertical driving plate, a cam cylinder and a stepping driving motor, wherein the bottom plate is fixedly arranged in the pit, the upper end surface of the bottom plate is provided with a guide groove which is vertically arranged with the track, the sliding guide plate is arranged along the sliding groove in a sliding fit manner, the sliding guide plate is vertically connected with the vertical driving plate, the top end of the vertical driving plate is fixedly connected with the track transfer driving plate, the track transfer driving plate and the sliding guide plate are arranged in parallel, the cam cylinder is rotatably arranged above the bottom plate in the pit, two ends of the cam cylinder are provided with rotating shafts, the rotating shafts are supported in the pit by bearings, one end of each rotating shaft is in driving connection with the stepping driving motor by a gear assembly, and the stepping driving motor is fixedly arranged on the bottom plate, the outer circumference of the cam is provided with a cam groove, the vertical driving plate is provided with a vertically extending driving groove, and a driving pin shaft sequentially extends into the driving groove and the cam groove, so that the vertical driving plate is moved left and right by driving the cam barrel to rotate, and then the orbital transfer driving plate is moved left and right, and orbital transfer is realized left or right.
Further, as preferred, the damping subassembly that slightly rotates includes upper junction piece, lower connecting piece, damping connecting piece, lower fixed subassembly and supporting component, wherein, the supporting component includes lower plate, middle elastic plate and upper plate, middle elastic plate sets up between lower plate and the upper plate, the middle part of lower connecting piece adopts the bolt fastening to set up on the supporting component, just the bolt passes in proper order upper plate, middle elastic piece and lower plate set up, the lower connecting piece includes the block ear and the spacing section of parcel that an organic whole set up, wherein, the left end bottom and the right-hand member bottom of lower connecting piece all are provided with the block ear, two the upside of block ear all be provided with the arc and wrap up spacing section, enclose between the curved spacing section of parcel at both ends and establish a cavity, upper junction piece includes the connecting segment of an organic whole setting, fixed subassembly and supporting component down, wherein, the bolt fastening is in the middle part, just, The butt section with stretch into the section, wherein, the bottom surface fixed connection of linkage segment and switch track subassembly, one side of linkage segment is provided with the butt section, the lower part of linkage segment is provided with the section of stretching into that crooked arc extends the setting, the tip that stretches into the section is provided with the winding head, the winding head stretches into around establishing in the cavity that the spacing section of winding was enclosed, the damping connecting piece is connected and is set up the winding head with between the spacing section of winding, just the upper end of damping connecting piece is supported and is leaned on the setting and is in the butt section of going up the connecting piece and the butt inslot of linkage segment, the winding of damping connecting piece is provided with the spacing head at the tip of the section of stretching into of last connecting piece, the tip of stretching into the section and the tip of wrapping up the spacing section all are provided with the spacing groove, the damping connecting piece adopts spacing setting of spacing head at the spacing inslot.
Further, as preferred, fixed subassembly includes dop, wedge, mounting panel and connecting rod down, wherein, the mounting panel is fixed to be set up on supporting component, the mounting panel with adopt between the dop the setting is connected to the connecting rod, the tip of dop compresses tightly the setting on the block ear, the wedge sets up between mounting panel and the dop to it is fixed with the block ear through wedge and dop, the wedge with adjustable setting in position between the mounting panel, just the wedge with self-locking function has between the mounting panel.
Further, as preferred, the bottom surface of wedge is provided with the tooth's socket, the top surface of mounting panel is provided with the auto-lock tooth, the wedge with pass through between the mounting panel through the auto-lock tooth is spacing realizes the auto-lock in the tooth's socket.
Further, as preferred, be provided with the spring groove of establishing to the indent on the section of stretching into of going up the connecting piece, the lower extreme of a spring is fixed to be set up spring groove bottom, and the upper end of spring supports and leans on damping connecting piece surface, damping connecting piece adopts elasticity wearability material to make.
Further, as preferred, still include distance sensor and controller, wherein, distance sensor sets up on track first subassembly and track second subassembly to measure switch track subassembly respectively with the distance of track first subassembly and track second subassembly, the track that is provided with the cam groove is stored in the controller, the controller is according to distance sensor's distance feedback to can realize the accurate control to the position of orbital transfer drive plate according to step drive motor's the number of turns and the track of cam groove.
Further preferably, the controller is a PLC controller.
Compared with the prior art, the invention has the beneficial effects that:
the invention abandons the conventional track-changing drive of the screw rod, adopts the cam groove drive mode instead, has good wear resistance of the cam groove, can bear larger vibration force, improves the bearing capacity of the track-changing, prolongs the service life, ensures the safety of the track-changing, simultaneously, arranges the turnout on the micro-rotation damping component, can slightly swing when the turnout is changed, prevents the turnout from being subjected to overlarge rigid force to cause the fatigue problem of the turnout, greatly improves the service life of the turnout and the self-adaptability of the turnout to change the track.
Drawings
FIG. 1 is a schematic diagram of an application structure of a turnout structure of urban rail transit according to the present invention;
FIG. 2 is a schematic structural diagram of a track transfer assembly of a turnout structure of urban rail transit according to the present invention;
FIG. 3 is a schematic structural view of a micro-rotation damping assembly of a turnout structure of urban rail transit according to the present invention;
fig. 4 is a structural schematic diagram of another embodiment of the cam barrel of the turnout structure of the urban rail transit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a turnout structure of urban rail transit comprises a first rail component, a second rail component, a turnout rail component 2 and a rail transfer component, wherein the track I component comprises two tracks I1 which are arranged in bilateral symmetry, the turnout track component 2 is arranged between the two tracks I in pairs, the tail end of the turnout track component 2 is provided with a track II of the track II component, a track transfer component is arranged between the two turnout track components, it is characterized in that the track transfer component adopts a cam mode of a cam barrel and a cam groove to realize the driving movement of the track transfer driving plate, the track transfer driving plate realizes the control of the left and right movement of the turnout track component, thereby realizing the track change, the tail end of the turnout track assembly is arranged on the track sleeper by adopting a micro-rotation damping assembly, the micro-rotation damping assembly allows the turnout track assembly to slightly swing at-3-3 degrees.
As shown in fig. 2, the track transfer assembly includes a bottom plate 4, a sliding guide plate 5, a vertical drive plate 6, a cam cylinder and a step drive motor 9, wherein the bottom plate 4 is fixedly disposed in the pit, a guide groove disposed perpendicular to the track is disposed on the upper end surface of the bottom plate 4, the sliding guide plate 5 is disposed along the slide groove in a sliding fit manner, the vertical drive plate 6 is vertically connected to the sliding guide plate 5, the top end of the vertical drive plate 6 is fixedly connected to the track transfer drive plate 3, the track transfer drive plate 3 is disposed parallel to the sliding guide plate 5, the cam cylinder is rotatably disposed above the bottom plate in the pit, rotating shafts 11 are disposed at two ends of the cam cylinder, the rotating shafts 11 are supported in the pit by bearings, and one end of the rotating shafts 11 is drivingly connected to the step drive motor 9 by a gear assembly 8, the stepping drive motor 9 is fixedly arranged on the bottom plate 4, the cam groove 12 is formed in the outer circumference of the cam, the vertical extending drive groove 7 is formed in the vertical drive plate, and a drive pin shaft 10 sequentially extends into the drive groove and the cam groove, so that the vertical drive plate is moved leftwards and rightwards through the rotation of the drive cam barrel, and the rail is changed leftwards or rightwards.
As shown in fig. 3, the micro-rotation damping assembly comprises an upper connection part 25, a lower connection part 27, a damping connection part 20, a lower fixing part and a support part, wherein the support part comprises a lower plate 13, a middle elastic plate 14 and an upper plate 15, the middle elastic plate 14 is arranged between the lower plate 13 and the upper plate 15, the middle part of the lower connection part is fixedly arranged on the support part by a bolt 29, the bolt sequentially passes through the upper plate, the middle elastic plate and the lower plate, the lower connection part comprises an integrally arranged clamping lug 28 and a wrapping limiting section 26, wherein the bottoms of the left end and the right end of the lower connection part are respectively provided with a clamping lug 28, the upper sides of the two clamping lugs 28 are respectively provided with an arc wrapping limiting section 26, a cavity is formed between the arc wrapping limiting sections at the two ends, and the upper connection part 25 comprises an integrally arranged connection section, An abutment section 24 and an extension section, wherein the connection section is fixedly connected with the bottom surface of the turnout track assembly, one side of the connecting section is provided with an abutting section 24, the lower part of the connecting section is provided with an extending section which is arranged in a curved arc shape in an extending way, the end part of the extending section is provided with a winding head which extends into a cavity surrounded by the wrapping limiting section, the damping connecting piece 20 is connected and arranged between the winding head and the winding limiting section, and the upper end of the damping connecting piece 20 is abutted and arranged in the abutting groove of the abutting section and the connecting section of the upper connecting piece, the end of said damping connection 20 wound around the run-in of the upper connection is provided with a stopper 22, the tip that stretches into the section and the tip that wraps up spacing section all are provided with spacing groove 23, damping connecting piece adopts spacing setting in spacing groove 23 of spacing head 22.
Fixed subassembly includes dop 19, wedge 18, mounting panel 16 and connecting rod 21 down, wherein, mounting panel 16 is fixed to be set up on supporting component, mounting panel 16 with adopt between the dop 19 the setting is connected to connecting rod 21, 19 tip of dop compresses tightly the setting on block ear 18, wedge 18 sets up between mounting panel and the dop to it is fixed with the block ear through wedge and dop, the wedge with adjustable setting in position between the mounting panel, just the wedge with self-locking function has between the mounting panel.
In this embodiment, the bottom surface of wedge is provided with the tooth's socket, the top surface of mounting panel is provided with from locking tooth 17, the wedge with pass through between the mounting panel through from locking tooth spacing realizes the auto-lock in the tooth's socket.
Go up the spring groove that is provided with the inwards concave establishment on the section of stretching into of connecting piece, the lower extreme of a spring 31 is fixed to be set up spring groove bottom, and the upper end of spring 31 supports and leans on damping connecting piece surface, damping connecting piece adopts elasticity wearability material to make.
In this embodiment, still include distance sensor and controller, wherein, distance sensor sets up on track first subassembly and track second subassembly to measure the switch track subassembly respectively with track first subassembly and track second subassembly apart from, the track that is provided with the cam groove is stored to the controller, as fig. 2, this cam groove is the curvilinear figure structure, the controller is according to distance sensor's distance feedback to can realize the accurate control to the position of derailment drive plate according to the track of the number of turns of step drive motor and cam groove.
As another embodiment, the cam groove may have a linear structure as shown in fig. 4.
It is possible for the controller to be selected to be a PLC controller.
The invention abandons the conventional track-changing drive of the screw rod, adopts the cam groove drive mode instead, has good wear resistance of the cam groove, can bear larger vibration force, improves the bearing capacity of the track-changing, prolongs the service life, ensures the safety of the track-changing, simultaneously, arranges the turnout on the micro-rotation damping component, can slightly swing when the turnout is changed, prevents the turnout from being subjected to overlarge rigid force to cause the fatigue problem of the turnout, greatly improves the service life of the turnout and the self-adaptability of the turnout to change the track.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A turnout structure of urban rail transit comprises a first rail component, a second rail component, a turnout rail component and a rail transfer component, wherein the track I component comprises two track I which are arranged symmetrically left and right, the turnout track component is arranged between the two track I in pairs, the tail end of the turnout track assembly is provided with a track II of the track II assembly, a track transfer assembly is arranged between the two turnout track assemblies, it is characterized in that the track transfer component adopts a cam mode of a cam barrel and a cam groove to realize the driving movement of the track transfer driving plate, the track transfer driving plate realizes the control of the left and right movement of the turnout track component, thereby realizing the track change, the tail end of the turnout track assembly is arranged on the track sleeper by adopting a micro-rotation damping assembly, the micro-rotation damping assembly allows the turnout track assembly to slightly swing at an angle of-3-3 degrees;
the micro-rotation damping assembly comprises an upper connecting piece, a lower connecting piece, a damping connecting piece, a lower fixing assembly and a supporting assembly, wherein the supporting assembly comprises a lower bottom plate, a middle elastic plate and an upper bottom plate, the middle elastic plate is arranged between the lower bottom plate and the upper bottom plate, the middle part of the lower connecting assembly is fixedly arranged on the supporting assembly by adopting a bolt, the bolt sequentially penetrates through the upper bottom plate, the middle elastic plate and the lower bottom plate, the lower connecting piece comprises clamping lugs and wrapping limiting sections which are integrally arranged, the bottoms of the left end and the right end of the lower connecting piece are respectively provided with the clamping lugs, the upper sides of the two clamping lugs are respectively provided with an arc wrapping limiting section, a cavity is defined between the arc wrapping limiting sections at the two ends, the upper connecting piece comprises a connecting section, a butting section and an extending section which are integrally arranged, wherein, the bottom surface fixed connection of linkage segment and switch track subassembly, one side of linkage segment is provided with the butt section, the lower part of linkage segment is provided with the section of stretching into that crooked arc extends the setting, the tip that stretches into the section is provided with the winding head, the winding head stretches into around establishing in the cavity that the spacing section of winding was enclosed to establish, the damping connecting piece is connected and is set up the winding head with between the spacing section of winding, just the upper end of damping connecting piece is supported and is leaned on the setting and is in the butt section of going up the connecting piece and the butt inslot of linkage segment, the winding of damping connecting piece is provided with the spacing head at the tip of the section of stretching into of last connecting piece, the tip of the section of stretching into and the tip of the spacing section of winding all are provided with the spacing groove, the damping connecting piece adopts spacing setting of spacing head at the spacing inslot.
2. The turnout structure of urban rail transit according to claim 1, wherein: the track transfer assembly comprises a bottom plate, a sliding guide plate, a vertical driving plate, a cam cylinder and a stepping driving motor, wherein the bottom plate is fixedly arranged in a pit, the upper end face of the bottom plate is provided with a guide groove which is vertically arranged with a track, the sliding guide plate is arranged along the guide groove in a sliding fit manner, the sliding guide plate is vertically connected with the vertical driving plate, the top end of the vertical driving plate is fixedly connected with the track transfer driving plate, the track transfer driving plate and the sliding guide plate are arranged in parallel, the cam cylinder is rotatably arranged above the bottom plate in the pit, two ends of the cam cylinder are provided with rotating shafts, the rotating shafts are supported in the pit by bearings, one end of each rotating shaft is in driving connection with the stepping driving motor by a gear assembly, the stepping driving motor is fixedly arranged on the bottom plate, and the outer circumference of the cam is provided with a cam, the vertical driving plate is provided with a vertically extending driving groove, and a driving pin shaft sequentially extends into the driving groove and the cam groove, so that the vertical driving plate is driven to move left and right through the rotation of the driving cam barrel, the left and right movement of the orbital transfer driving plate is further realized, and the leftward or rightward orbital transfer is realized.
3. The turnout structure of urban rail transit according to claim 1, wherein: fixed subassembly includes dop, wedge, mounting panel and connecting rod down, wherein, the mounting panel is fixed to be set up on supporting component, the mounting panel with adopt between the dop the setting is connected to the connecting rod, the tip of dop compresses tightly the setting on the block ear, the wedge sets up between mounting panel and the dop to it is fixed with the block ear through wedge and dop, the wedge with adjustable setting in position between the mounting panel, just the wedge with self-locking function has between the mounting panel.
4. The turnout structure of urban rail transit according to claim 3, wherein: the bottom surface of wedge is provided with the tooth's socket, the top surface of mounting panel is provided with the auto-lock tooth, the wedge with pass through between the mounting panel through the auto-lock tooth is spacing realizes the auto-lock in the tooth's socket.
5. The turnout structure of urban rail transit according to claim 1, wherein: go up the spring groove that is provided with the indent on the section of stretching into of connecting piece and establish, the lower extreme of a spring is fixed to be set up spring groove bottom, and the upper end of spring supports and leans on damping connecting piece surface, damping connecting piece adopts elasticity wearability material to make.
6. The turnout structure of urban rail transit according to claim 1, wherein: still include distance sensor and controller, wherein, distance sensor sets up on a subassembly of track and two subassemblies of track to measure switch track subassembly respectively with the distance of a subassembly of track and two subassemblies of track, the interior track that is provided with the cam groove that stores of controller, the controller is according to distance sensor's distance feedback to can realize the position accuracy control to the orbital transfer drive plate according to step drive motor's the number of turns and the track of cam groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711085972.5A CN107839717B (en) | 2017-11-07 | 2017-11-07 | Switch structure of urban rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711085972.5A CN107839717B (en) | 2017-11-07 | 2017-11-07 | Switch structure of urban rail transit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107839717A CN107839717A (en) | 2018-03-27 |
| CN107839717B true CN107839717B (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711085972.5A Expired - Fee Related CN107839717B (en) | 2017-11-07 | 2017-11-07 | Switch structure of urban rail transit |
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| CN (1) | CN107839717B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US196284A (en) * | 1877-10-23 | Improvement in railway-switches | ||
| CN2084896U (en) * | 1991-03-28 | 1991-09-18 | 南京铁路运输学校 | Electric goat of switch |
| CN201343047Y (en) * | 2008-11-15 | 2009-11-11 | 吴国新 | Electric-type department-control switch control device |
| CN201932185U (en) * | 2011-01-14 | 2011-08-17 | 青岛四方车辆研究所有限公司 | Rotating mechanism of metal joint bearing |
| CN102817289A (en) * | 2012-07-20 | 2012-12-12 | 重庆川东船舶重工有限责任公司 | Flexible turnout beam section for saddle type single track traffic track |
| CN106029980A (en) * | 2013-12-20 | 2016-10-12 | 拉夫堡大学 | Railway points, railway points operating apparatus and railway track crossing |
| CN107757655A (en) * | 2017-11-07 | 2018-03-06 | 柴薪 | A kind of track switch for becoming rail using cam path |
-
2017
- 2017-11-07 CN CN201711085972.5A patent/CN107839717B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US196284A (en) * | 1877-10-23 | Improvement in railway-switches | ||
| CN2084896U (en) * | 1991-03-28 | 1991-09-18 | 南京铁路运输学校 | Electric goat of switch |
| CN201343047Y (en) * | 2008-11-15 | 2009-11-11 | 吴国新 | Electric-type department-control switch control device |
| CN201932185U (en) * | 2011-01-14 | 2011-08-17 | 青岛四方车辆研究所有限公司 | Rotating mechanism of metal joint bearing |
| CN102817289A (en) * | 2012-07-20 | 2012-12-12 | 重庆川东船舶重工有限责任公司 | Flexible turnout beam section for saddle type single track traffic track |
| CN106029980A (en) * | 2013-12-20 | 2016-10-12 | 拉夫堡大学 | Railway points, railway points operating apparatus and railway track crossing |
| CN107757655A (en) * | 2017-11-07 | 2018-03-06 | 柴薪 | A kind of track switch for becoming rail using cam path |
Non-Patent Citations (1)
| Title |
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| "对称道岔在城市轨道交通中的设计与应用";王华兵 等;《现代城市轨道交通》;20141231(第1期);第1-3节，图1-7 * |
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| Publication number | Publication date |
|---|---|
| CN107839717A (en) | 2018-03-27 |
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