CN109208407B - Single-opening joint flexible turnout bending device and single-opening joint flexible turnout - Google Patents

Abstract

The invention discloses a single-opening joint flexible turnout bending device and a single-opening joint flexible turnout, wherein the turnout bending device comprises: the first deflection group comprises an upper first deflection structure and a lower first deflection structure, each first deflection structure comprises a first deflection push rod and a first axial cam, a cam groove is formed in the peripheral surface of each first axial cam in the first deflection structure, a roller extending into the cam groove is arranged on each first deflection push rod, and the peripheral surface of each roller is in a conical shape. According to the flexible turnout bending device with the single-opening joint, dangerous phenomena such as impact, insufficient bending and the like are avoided. In addition, after the roller is worn in the use process, the roller can still be continuously used by adjusting the position of the roller relative to the cam groove, and the service life of the turnout bending device is prolonged.

Description

Single-opening joint flexible turnout bending device and single-opening joint flexible turnout

Technical Field

The invention relates to the technical field of rail transit, in particular to a single-opening joint flexible turnout bending device and a single-opening joint flexible turnout.

Background

In the related art, the driving device of the flexible turnout beam of the straddle type monorail traffic track adopts a serial transmission mechanism with single motor input and multiple driving arm output, and the bending device adopts a multi-connecting-rod serial connection mechanism, so that the flexible turnout beam has certain defects: first, the layout of the flexible components makes most of the middle transmission connecting rods be pressure rods, which is easy to generate the phenomenon of pressure rod instability. Secondly, the thread-shaped end face cam has high requirements on machining precision and manufacturing cost, is inconvenient to lubricate and difficult to maintain, is in direct surface contact with the roller and cannot be compensated after later abrasion, and an overlarge gap can cause serious impact and even can cause deflection deformation not in place. Thirdly, camshaft installation axle is the optical axis of uniform diameter, and is long with switch roof beam body, camshaft cooperation face, and the on-the-spot installation is difficult, and the machining precision is high, with high costs.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. To this end, the present invention proposes, in a first aspect, a single-joint flexible switch bending device which is easy to install and safe.

In a second aspect, the present invention provides a single-opening joint flexible turnout, which includes the single-opening joint flexible turnout bending device.

According to the flexible turnout flexure device with the single joint in the embodiment of the first aspect of the invention, the turnout flexure device comprises at least one first flexure group and a driving assembly for driving the first flexure group, the first flexure group comprises an upper first flexure structure and a lower first flexure structure, each first flexure structure comprises a first flexure push rod and a first axial cam, the first flexure structure is provided with a cam groove on the peripheral surface of the first axial cam, the first flexure push rod is provided with a roller extending into the cam groove, and the peripheral surface of the roller is in a conical shape.

According to the flexible turnout bending device with the single-opening joint, the roller in the conical shape is adopted, the gap between the roller and the cam groove can be adjusted by adjusting the mounting height of the roller, and the dangerous phenomena of impact, deflection and the like are avoided. In addition, after the roller is worn in the use process, the roller can still be continuously used by adjusting the position of the roller relative to the cam groove, and the service life of the turnout bending device is prolonged.

In addition, the flexible turnout bending device with single opening joints according to the above embodiment of the invention has the following additional technical features:

according to some embodiments of the invention, a first crank is fixed to one of the first axial cams, a first pull rod is connected to a swinging end of the first crank, and the other end of the first pull rod is connected to the driving assembly.

Further, the drive assembly includes: the swinging end of the first swinging arm is connected with the other end of the first pull rod; the driving piece is connected with the first swing arm to drive the first swing arm to swing.

In some embodiments of the invention, the switch flexure further comprises: at least one second flexure group comprising upper and lower two second flexure structures each comprising a second axial cam and a second flexure push rod, the drive assembly adapted to drive the second flexure group.

Furthermore, a second crank is fixedly connected to one second axial cam, and the swinging end of the second crank is connected with the driving component through a transmission piece.

Further, the transmission member includes: a second swing arm; the two ends of the second pull rod are respectively connected with the swinging end of the first swing arm and the swinging end of the second swing arm; and two ends of the third pull rod are respectively connected with the swinging end of the second swing arm and the swinging end of the second crank.

Optionally, a third crank is fixedly connected to the first axial cam, and the swing ends of the third cranks of the upper and lower two flexing structures in the first flexing group are connected by a vertical connecting rod.

Further, the first deflection group comprises a plurality of deflection structures, a fourth crank is fixedly connected to one of the upper deflection structure and the lower deflection structure in each first deflection group, and the swinging ends of the fourth cranks are connected through a horizontal connecting rod.

According to a second aspect of the invention, the flexible turnout with single opening joint comprises: the turnout comprises a plurality of sections of turnout beams, wherein each turnout beam is provided with a flexure plate; a switch flexure means located at least partially inside said switch beam, said switch flexure means being said single-split flexible switch flexure means; the driving device is arranged at the bottom of the turnout beam; and the central control system is in signal transmission with the driving assembly and the driving device respectively.

Further, the driving device includes: the fixed rack is provided with a rack; the movable rack is supported on a walking surface at the upper part of the fixed rack; the sliding chute assembly is arranged at the bottom of the turnout beam and is in contact fit with a driving roller on the moving rack; the gear motor is fixed on the moving rack, and a gear at the output end of the gear motor is in transmission connection with the rack.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a single-split flexible switch flexure in accordance with an embodiment of the present invention;

FIG. 2 is a schematic view of a portion of the structure of FIG. 1;

FIG. 3 is a schematic view taken along line A-A of FIG. 1;

figure 4 is a schematic view of a first axial cam in a single open joint flexible switch flexure arrangement according to an embodiment of the present invention;

FIG. 5 is a schematic view of a wheel of a single-split flexible switch flexure assembly in accordance with an embodiment of the present invention;

FIG. 6 is a cam curve diagram of a single articulated flexible switch flexure mechanism in accordance with an embodiment of the present invention;

FIG. 7 is a schematic view of a single opening joint flexible switch in accordance with an embodiment of the present invention;

FIG. 8 is a schematic view of a drive unit in a single-split flexible switch in accordance with an embodiment of the present invention;

FIG. 9 is a schematic view of a T-shaped shaft in a single-split flexible switch according to an embodiment of the present invention;

figure 10 is a cross-sectional view of the T-shaped shaft in a single split flexible switch in accordance with an embodiment of the present invention.

Reference numerals: a single-split joint flexible turnout flexure device 100, a first flexure group 1, a first flexure structure 11, a first support shaft 111, a first axial cam 112, a cam slot 1121, a first flexure push rod 113, a roller 1131, a first crank 114, a third crank 115, a vertical link 116, a horizontal link 117, a drive assembly 2, a first swing arm 21, a drive member 22, a first connecting member 3, a second flexure group 4, a second flexure structure 41, a second axial cam 412, a second flexure push rod 413, a second crank 414, a fourth crank 415, a transmission 5, a second pull rod 51, a second swing arm 52, a third pull rod 53, a single-split joint flexible turnout 200, a turnout beam 210, a first turnout beam 211, a second turnout beam 212, a third turnout beam 213, a fourth turnout beam 214, a flexure plate 220, a drive device 230, a fixed rack 2311, a moving reduction rack 232, a chute assembly 233, a motor 234, gear 2341, drive roller 235, guide roller 236, T-shaped shaft 240, transverse shaft 241, vertical shaft 242 and flat key 243.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the related art, the first scheme provides a flexible turnout beam of a straddle type monorail transit track, which comprises a flexible beam section and a deflection driving assembly, wherein the flexible beam section is used for forming the flexible turnout beam, the deflection driving assembly is used for driving the flexible turnout beam to generate deflection deformation, and the flexible beam section comprises a flexible beam main body and a walking support; the flexible turnout beam structure is formed by flexible beam sections which are forced to be flexibly deformed, when the turnout beam structure needs to be in conversion connection with a track, the flexible turnout beam structure is driven by external force to be subjected to deflection deformation, the guide surface and the stabilizing surface of the flexible beam sections are in smooth transition, the folding line is eliminated, the light rail train passage is facilitated, the structure is greatly simplified compared with the existing turnout structure, the manufacturing cost is reduced, the manufacturing period is shortened, the service life is long, the use and maintenance cost is saved, the comfort and the safety of the light rail in running can be guaranteed, the vehicle running noise is reduced, and the environment-friendly performance is good.

Wherein, the drive arrangement in scheme one adopts the serial drive mechanism of single motor input many drive arm outputs, and the flexure mechanism adopts many connecting rods serial coupling mechanism, has certain not enough: firstly, the linear shape after the switch completely depends on the length dimension precision of the driving arm and the dimension chain matching precision of the installation position thereof, the requirements on the processing and installation precision of parts are high, and the field installation and debugging are difficult and inconvenient to finely adjust. And secondly, the plurality of reduction boxes are connected through a single transmission shaft, the transmission distance is long, the input shafts of different reduction boxes have certain included angles, and the shaft intersection angle needing to be compensated by the coupler is larger than the application range of the common coaxial coupler. Thirdly, the mechanism principle leads to the turnout beam body motion speed fluctuation in the switching process to be large, the whole load fluctuation change is large, the mechanism has large impact in operation, and the fatigue life of a moving part is short. Fourthly, the distribution of the bending components enables a plurality of middle transmission connecting rods to be pressure rods, the phenomenon of pressure rod instability is easy to generate, in order to avoid instability, a large section size needs to be selected for use for most rod pieces, a large installation space is needed under the internal space of the beam body which is just narrow, the installation difficulty is greatly increased, and the light weight and the cost reduction of equipment are not facilitated. Fifthly, the thread-shaped end face cam has high requirements on machining precision and manufacturing cost, is inconvenient to lubricate and difficult to maintain, is in direct surface contact with the roller, cannot be compensated after later abrasion, causes serious impact due to an overlarge gap, and even causes deflection deformation not in place. Sixthly, the camshaft mounting shaft is an optical axis with the same diameter, the matching surface with the turnout beam body and the camshaft is long, the field mounting is difficult, the processing precision is high, and the cost is high.

The second scheme provides a joint flexible turnout bending device for special track conversion used in a straddle type monorail transit line, and the joint flexible turnout bending device comprises a guide panel, a stabilizing panel, a mounting support, a cam support shaft, an axial cam, a double-plug connecting rod, a roller assembly, a connecting rod pair and an electric push rod, wherein the bending device adopts a driving form of serial connection of cam pull rods to realize synchronous bending of a guide surface and a stabilizing surface, the guide panel and the stabilizing panel are connected to two ends of the double-fork pull rod through hinge holes, the double-fork pull rod is connected with a driven assembly, the driven assembly is in contact connection with a cylindrical cam mechanism, two adjacent cylindrical cam mechanisms above the guide panel and the stabilizing panel are connected through the connecting rods, and the two cylindrical cam mechanisms corresponding to each other up and down are connected through the connecting rods; the pull rod drives the guide plate to realize transverse synchronous movement, so that transverse bending of the guide plate is completed.

The technical scheme only replaces the thread-shaped end face cam and the driving sliding groove matched with the thread-shaped end face cam in the technical scheme with the cylindrical cam and the roller, and does not overcome the defects of a bending device in the technical scheme.

The third scheme provides a straddle type monorail joint type single turnout driving device which mainly comprises a main motor, a main speed reducer, switch speed reduction boxes, manual switch speed reduction boxes and a rotating arm, wherein the four switch speed reduction boxes are connected in series through a transmission shaft and a crowned tooth coupler and are connected with the main speed reducer under a No. 4 beam, the main speed reducer is connected with the main motor through a clutch mechanism, the manual switch speed reduction boxes are connected with one switch speed reduction box under a No. 2 beam of the turnout through the clutch mechanism, the rotating arm is connected onto each switch speed reduction box, and a roller at the tail end of the rotating arm is located in a sliding groove of the turnout beam. The switch has good synchronism, accurate and reliable switch, low failure rate and low cost of the whole device. However, the third and first solutions adopt the same arrangement of the driving device, and do not overcome the disadvantages of the driving device in the first solution.

A single-split flexible switch bending apparatus 100 according to an embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 1-10, according to the flexible switch bending device 100 with single opening joint of the present invention, the switch bending device 100 includes at least one first bending group 1 and a driving assembly 2 for driving the first bending group 1.

For example, in the example of fig. 1, a single-split flexible switch bending device 100 includes a drive assembly 2 and six first bending groups 1 arranged in a front-to-rear direction, and the drive assembly 2 can drive the first bending groups 1. The specific number and arrangement of the first flexure groups 1 can be adaptively set according to actual needs, and the present invention is not particularly limited thereto.

Specifically, referring to fig. 1 and 2, the first flexure group 1 includes two upper and lower first flexure structures 11, each first flexure structure 11 including a first flexure push rod 113 and a first axial cam 112.

For example, each first flexure group 1 includes two upper and lower first flexure structures 11, each first flexure structure 11 includes a first support shaft 111, a first axial cam 112, and a first flexure push rod 113, the first axial cam 112 is rotatably supported on the first support shaft 111, and the first flexure push rod 113 is vertically movably supported on the first support shaft 111.

The plurality of first axial cams 112 rotate in synchronization. All of the first axial cams 112 rotate in synchronism, that is, in the case of a plurality of first flexure groups 1, the first axial cams 112 in the upper and lower flexure mechanisms 11 included in each first flexure group 1 rotate in synchronism.

Referring to fig. 3 to 5 in combination with fig. 1, in the first flexing structure 11, a cam groove 1121 is formed on a circumferential surface of the first axial cam 112, a roller 1131 is disposed on the first flexing push rod 113, the roller 1131 extends into the cam groove 1121, the roller 1131 and an inner bottom surface of the cam groove 1121 may be spaced apart by a predetermined distance, the circumferential surface of the roller 1131 is in a conical shape, and the shape of the cam groove 1121 is matched with that of the roller 1131. For example, the side surface of the cam groove 1121 is a curved surface that is tangent to the circumferential surface of the roller 1131. Therefore, by adopting the roller 1131 in the shape of the cone, the gap between the roller 1131 and the cam groove 1121 can be adjusted by adjusting the installation height of the roller 1131, so that the dangerous phenomena of impact, deflection and the like are avoided, and the device has a wide prospect in the field of monorail transportation with increasingly increased requirements on safety and stability.

In addition, by making the circumferential surface of the roller 1131 be a tapered surface, the roller 1131 can be used continuously after being worn during use, for example, after the roller 1131 is worn, the roller 1131 can be used continuously by adjusting the position of the roller 1131 relative to the cam groove 1121, which is beneficial to prolonging the service life.

According to the flexible turnout bending device 100 with the single-opening joint, the roller 1131 with the conical shape is adopted, and the gap between the roller 1131 and the cam groove 1121 can be adjusted by adjusting the installation height of the roller 1131, so that dangerous phenomena such as impact, insufficient bending and the like are avoided. In addition, when the roller 1131 is worn during use, the roller 1131 can be continuously used by adjusting the position of the roller 1131 relative to the cam groove 1121, which is beneficial to prolonging the service life of the point bending device.

According to some embodiments of the present invention, a first crank 114 is fixed to one of the first axial cams 112, a first pull rod is connected to a swing end of the first crank 114, and the other end of the first pull rod is connected to the driving assembly 2. By rigid connection is meant a relatively fixed connection, which may be connected, for example, by a detachable connection, etc.

Referring to fig. 1 and 2, according to some embodiments of the present invention, a plurality of first axial cams 112 are linked, and a first crank 114 is relatively fixedly connected to one first axial cam 112, a swing end of the first crank 114 is connected to the driving assembly 2 by the first connecting member 3, and the driving assembly 2 is adapted to pull the swing end of the first crank 114 to drive the first axial cam 112 in the first flexing structure 11 to push the first flexing push rod 113 to move. In particular, the first connecting member 3 may be a first tie rod. Therefore, the driving assembly 2 can pull the swing end of the first crank 114, so as to drive the first axial cam 112 to push the first bending push rod 113 to move, change the compression state of a plurality of connecting rods into the tension state, effectively reduce the cross section of the rod, and reduce the installation difficulty of the single-opening joint flexible turnout bending device 100.

Further, referring to fig. 1 and 2, the driving assembly 2 includes: a first swing arm 21 and a driving member 22, wherein the swing end of the first swing arm 21 is connected with the other end of the first pull rod, and the first swing arm 21, the first pull rod and the first crank 114 are combined to form a crank link mechanism; the driving member 22 is connected to the first swing arm 21 to drive the first swing arm 21 to swing. Therefore, the first swing arm 21 can be driven by the driving member 22 to move the first pull rod and the first crank 114, thereby providing favorable conditions for the flexural deformation of the single-opening joint flexible turnout bending device 100. Here, the driving member 22 may be an electric push rod or a hydraulic cylinder, etc.

Here, the distance between the corresponding position of the first deflection push rod 113 in the first deflection structure 11 and the central axis of the first axial cam 112 increases as the distance between the other end of the first pull rod and the rotation center of the third crank 115 (disposed adjacent to the first crank 114) increases.

As shown in fig. 1 and 2, in some embodiments of the present invention, the single-split flexible switch bending apparatus 100 further comprises: at least one second deflection group 4, the second deflection group 4 comprising two upper and two lower second deflection structures 41, the second deflection structures 41 each comprising a second axial cam 412 and a second deflection push rod 413, the drive assembly 2 being adapted to drive the second deflection group 4.

Specifically, the second flexing structures 41 each include a second supporting shaft, a second axial cam 412 rotatably supported on the second supporting shaft, and a second flexing push rod 413 vertically movably supported on the second supporting shaft, the plurality of second axial cams 412 rotate synchronously, and the driving assembly 2 is adapted to drive the second flexing group 4 to move the second push rod 413 in the same direction as the first flexing push rod 113. Therefore, the first flexing group 1 and the second flexing group 4 can be driven by the driving assembly 2 to flex and deform synchronously.

Further, referring to fig. 1 and 2, a plurality of second axial cams 412 are linked, and a second crank 414 is relatively fixedly connected to one second axial cam 412, the swing end of the second crank 414 is connected to the driving assembly 2 by the transmission member 5, and the driving assembly 2 is adapted to pull the swing end of the second crank 414 to drive the second axial cam 412 in the second flexing structure 41 to push the second flexing push rod 413 away. Therefore, the driving assembly 2 can pull the swing end of the second crank 414, so as to drive the second axial cam 412 to push the second bending push rod 413 away, so as to change the compressed state of the plurality of connecting rods into the pulled state, thereby effectively reducing the cross section of the rod and reducing the installation difficulty of the single-opening joint flexible turnout bending device 100.

Further, the transmission member 5 includes: the second swing arm 52, the second pull rod 51 and the third pull rod 53, wherein two ends of the second pull rod 52 are respectively connected with the swing end of the first swing arm 21 and the swing end of the second swing arm 52; both ends of the third pull rod 53 are connected to the swing end of the second swing arm 52 and the swing end of the second crank 414, respectively.

Specifically, with reference to fig. 2, the transmission piece 5 comprises: a second pull rod 51, a second swing arm 52 and a third pull rod 53. Wherein, one end of the second pull rod 51 is connected with the driving component 2; the second swing arm 52 can swing, and the second swing arm 52 is connected with the second pull rod 51; one end of the third pull rod 53 is connected to the second swing arm 52, and the other end of the third pull rod 53 is connected to the second crank 414. The second bending group 4 can be further bent and deformed by the transmission piece 5.

Further, referring to fig. 1 and 2, the driving assembly 2 includes: the first swing arm 21 is connected with the second pull rod 51, and the first swing arm 21, the second pull rod 51, the second swing arm 52, the third pull rod 53 and the second crank 414 are combined to form a crank link mechanism; the driving member 22 is connected to the first swing arm 21 to drive the first swing arm 21 to swing. Therefore, the first swing arm 21 can be driven by the driving member 22 to drive the transmission member 5 to move, thereby providing favorable conditions for the flexural deformation of the single-opening joint flexible turnout flexure device 100.

For example, the distance between the corresponding position of the second deflection push rod 413 in the second deflection structure 41 and the central axis of the second axial cam 412 increases as the distance between the other end of the third pull rod and the rotation center of the fourth crank 415 (disposed adjacent to the second crank 414) increases.

Alternatively, referring to fig. 1 and 2, a third crank is relatively fixedly connected to the first axial cam 112, and the swinging ends of the third cranks 115 of the upper and lower two flexing structures 11 in the first flexing set 1 are connected by a vertical connecting rod 116 to form a crank-link mechanism. The flexible structures 11 can be linked, and the structural layout is more reasonable.

Further, referring to fig. 1 and 2, the first flexing assembly 1 includes a plurality of first flexing assemblies 1, one of the upper and lower flexing structures 11 in each first flexing assembly 1 is relatively fixedly connected with a fourth crank 415, and the swinging ends of the plurality of fourth cranks 415 are connected by a horizontal connecting rod 117 to form a crank-link mechanism. The flexible structures 11 can be linked, and the structural layout of the flexible device is more reasonable.

Referring to fig. 7 in combination with fig. 1 to 6, a single-split flexible switch 200 according to a second aspect of the present invention comprises: a multi-link switch beam 210, a switch flexure, a drive 230, and a central control system.

Specifically, the switch beam 210 is mounted with a flexure 220 (including a guide flexure and a stabilizing flexure); the turnout flexure device is at least partially positioned on the inner side of the turnout beam 210, and the turnout flexure device is the single-opening joint flexible turnout flexure device 100; the driving device 230 is arranged at the bottom of the turnout beam 210; the central control system is in signal communication with the drive assembly 2 and the drive means 230, respectively. Thus, the corresponding control of the single-opening joint flexible turnout 200 can be easily realized through the central control system.

Both ends of the deflection push rods (including the first deflection push rod 113 and the second deflection push rod 413) are respectively hinged with the corresponding deflection plates 220. The deflection push rod is supported on the deflection plates 220 on both sides of the turnout beam 210 through ear seats and pin shafts. The deflection of the deflection plate 220 can be further driven by the deflection of the pushing rod.

The axial cylindrical cam assembly (including, for example, the first axial cam 112) is mounted to the inside of the switch beam 210 by a support shaft, and the support shaft is a stepped shaft. The installation of the single-opening joint flexible turnout flexure device 100 is convenient and the cost is reduced.

Here, the axial cylinder cam assembly may be the first axial cam 112 or the second axial cam 412, and correspondingly, the support shaft may be the first support shaft or the second support shaft, the same as below.

In the initial position, the single-opening joint flexible turnout 200 is in a linear state, and the guide flexure plate and the stable flexure plate are in a linear state. When the central control system sends out a bending deformation instruction, the driving member 22, for example, a movable push rod of an electric push rod (or a hydraulic cylinder), extends out, on one hand, the driving member drives an upper row and a lower row of axial cylindrical cam assemblies in the turnout beam 210 to rotate clockwise through the intermediate connecting rod transmission structure, so that the bending push rod (for example, a first bending push rod 113) pushes the guide bending plate and the stable bending plate to generate bending deformation similar to a circular arc, and on the other hand, the bending push rod (for example, a second bending push rod 413) in the adjacent turnout beam 210 is driven through a second pull rod 51 and a third pull rod 53 to push the guide bending plate and the stable bending plate to; when the flexible push rod is bent to the proper position, the central control system sends out a position holding instruction, and the movable push rod of the electric push rod is kept still at the corresponding position, namely the flexible push rod is not moved at the designated position; when the monorail train passes through, the central control system sends a reset instruction, the movable push rod of the electric push rod retracts, so that the bending push rod is driven to return to the initial position, and the guide bending plate and the stable bending plate are restored to the linear state.

The switch beam 210 includes a first switch beam 211, a second switch beam 212, a third switch beam 213 and a fourth switch beam 214 connected in sequence. Two adjacent switch beams 210 may be hinged by a T-shaped shaft 240, and the T-shaped shaft 240 includes: the transverse shaft 241 is provided with an assembly hole penetrating through the thickness direction of the transverse shaft 241; one end of the vertical shaft 242 is in interference fit with the assembly hole; the vertical shaft 242 is keyed to the horizontal shaft 241. Thereby, a reliable connection between the vertical shaft 242 and the horizontal shaft 241 can be achieved, and torque transmission is facilitated.

Specifically, the T-shaped shaft 240 includes a transverse shaft 241, a vertical shaft 242 and a flat key 243, the transverse shaft 241 is provided with a mounting hole, the upper end of the vertical shaft 242 extends into the mounting hole and is in interference fit with the mounting hole, the outer peripheral wall of the upper end of the vertical shaft 242 is provided with a key groove, the flat key 243 is arranged in the key groove and is in contact with the inner peripheral wall of the mounting hole, and the length of the flat key 243 is the same as that of the mounting hole.

Further, referring to fig. 8, the driving device 230 includes: a stationary stage 231, a moving stage 232, a chute assembly 233, and a reduction motor 234. The fixing stage 231 is mounted with a rack 2311, for example, the rack 2311 may be mounted below and on the side of the fixing stage 231; the moving stage 232 is supported on a walking surface of the upper part of the fixed stage 231; the sliding chute assembly 233 is installed at the bottom of the turnout beam 210, the sliding chute assembly 233 is in contact fit with a driving roller 235 on the moving rack 232, and the inner side of the sliding chute assembly 233 is provided with a wear-resisting plate and adjusting base plates with various specifications; the gear motor 234 is fixed on the moving rack 232, and a gear 2341 at the output end of the gear motor 234 is in transmission connection with the rack 2311.

Specifically, the single-opening-joint flexible turnout 200 according to the embodiment of the present invention includes a turnout beam 210, a T-shaft 240 for the turnout beam hinge, a guide flexure plate and a stabilizing flexure plate, a support trolley, a driving device 230, a single-opening-joint flexible turnout flexure device 100 and a locking device.

The driving device 230 is arranged at the bottom of the second turnout beam 212 and the fourth turnout beam 214, 2 sets are arranged under each section of beam, each set comprises a speed reducing motor 234, a gear rack transmission mechanism, a moving rack 232, a fixed rack 231 and a sliding chute assembly 233 arranged at the bottom of the turnout beam 210, the speed reducing motor 234 is fixed on the moving rack 232 through a motor mounting bracket, a gear 2341 at the output end of the speed reducing motor 234 is in transmission connection with a rack 2311 fixedly arranged below the side of the fixed rack 231, the fixed rack 231 is fixedly arranged on the turnout platform, the moving rack 232 is supported on a walking surface on the upper portion of the fixed rack 231, a driving roller arranged above the moving rack 232 is in high-pair contact with the sliding chute assembly 233 arranged at the bottom of the turnout beam 210, and the transmission ratio of the speed reducing motor in each set of driving device 230 is selected according to the position of the driving.

Two rows of guide rollers 236 are respectively arranged below two sides of the movable table frame 232, and the opposite guide rollers 236 are tightly held on the walking surface at the upper part of the fixed table frame 231. The gear 2341 and the rack 2311 are preferably helical teeth, and straight teeth, herringbone teeth and the like can be selected.

The transmission ratios of the reduction motors of the 1# driving device to the 4# driving device (corresponding to the first turnout beam 211 to the fourth turnout beam 214) are sequentially reduced, and the length of the walking surface at the upper part of the fixed rack 231, the length of the rack 2311 and the length of the sliding groove on the corresponding turnout beam are sequentially increased. Two ends of the upper walking surface of the fixed rack 231 are provided with limiting car stops, and buffer cushion blocks are mounted on the limiting car stops and are polyurethane buffer blocks.

The single-joint flexible switch deflection device 100 is disposed inside a switch beam 210, and includes: the flexible push rod group comprises an upper row of flexible push rod groups and a lower row of flexible push rod groups, each row of flexible push rod groups comprises a plurality of flexible push rods, and the plurality of flexible push rods of the two rows of flexible push rod groups are arranged in a one-to-one correspondence manner in the vertical direction; two ends of the deflection push rods in the upper row of deflection push rod groups are correspondingly hinged with the connecting lug seats on the guide deflection plates on two sides of the turnout beam, and two ends of the deflection push rods in the lower row of deflection push rod groups are correspondingly hinged with the connecting lug seats on the stable deflection plates on two sides of the turnout beam.

Multiunit axial cylinder cam subassembly, multiunit axial cylinder cam subassembly respectively with the flexion push rod one-to-one setting, every axial cylinder cam subassembly of group includes camshaft, one or two cranks and a plurality of connecting piece, installs the wheel components (including the gyro wheel) at flexion push rod middle part and the cooperation of cam groove 1121 contact on the camshaft, axial cylinder cam subassembly passes through the back shaft and installs on switch roof beam is inside.

The upper and lower corresponding axial cylindrical cam assemblies are connected through a vertical connecting rod 116, the front and rear adjacent axial cylindrical cam assemblies are connected through a horizontal connecting rod 117, an electric push rod (or a hydraulic cylinder) is connected with a first pull rod through a first swing arm 21 (such as a first torsion bar), and the other end of the first pull rod is hinged with a first crank on the axial cylindrical cam assembly at the lower row end part; two ends of the adjacent second pull rod are respectively connected with the first torsion bar and a second swing arm 52 (such as a second torsion bar) through a ball pair, and the other end of the second torsion bar is hinged with a second crank on the axial cylindrical cam component at the lower row end part in the adjacent turnout beam bending device through a third pull rod 53.

The roller components are assembled into a group by a roller shaft, a roller 1131, a bearing, a shaft end baffle and a connecting fastener, and are connected with the deflection push rod by threads and the fastener at the end part of the roller shaft, and the outer surface of the roller 1131 is conical. The side wall of the cam groove 1121 on the camshaft is an inclined surface that is matched with the conical outer surface of the roller. The support shaft is a stepped shaft.

Referring to fig. 6, a cam curve for a camshaft includes a near-rest straight line segment, a lift straight line segment, and a far-rest straight line segment, where between the near-rest straight line segment and the lift straight line segment, and between the lift straight line segment and the far-rest straight line segment, arc curves tangent to the two straight line segments are provided, and the lift of the cam curves of different camshafts is different (given according to the deflection value of each point).

The operation of the single-split flexible switch 200 according to the embodiment of the present invention will be described in detail with reference to fig. 1 to 10.

In the initial position, the single-opening joint flexible turnout 200 is in a linear state, and the guide flexure plate and the stable flexure plate are in a linear state. When the central control system sends out a bending deformation instruction, the driving member 22, for example, a movable push rod of an electric push rod (or a hydraulic cylinder), extends out, on one hand, the driving member drives an upper row and a lower row of axial cylindrical cam assemblies in the turnout beam 210 to rotate clockwise through the intermediate connecting rod transmission structure, so that the bending push rod (for example, a first bending push rod 113) pushes the guide bending plate and the stable bending plate to generate bending deformation similar to a circular arc, and on the other hand, the bending push rod (for example, a second bending push rod 413) in the adjacent turnout beam 210 is driven through a second pull rod 51 and a third pull rod 53 to push the guide bending plate and the stable bending plate to; when the flexible push rod is bent to the proper position, the central control system sends out a position holding instruction, and the movable push rod of the electric push rod is kept still at the corresponding position, namely the flexible push rod is not moved at the designated position; when the monorail train passes through, the central control system sends a reset instruction, the movable push rod of the electric push rod retracts, so that the bending push rod is driven to return to the initial position, and the guide bending plate and the stable bending plate are restored to the linear state. The working process of the single-opening joint flexible turnout 200 according to the embodiment of the invention is completed.

Other constructions and operations of the single-split flexible switch 200 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. A single articulated flexible switch flexure arrangement comprising at least one first flexure group and a drive assembly driving the first flexure group, the first flexure group comprising upper and lower first flexure structures, each first flexure structure comprising a first flexure push rod and a first axial cam, wherein in the first flexure structures,

the peripheral surface of the first axial cam is provided with a cam groove, the first deflection push rod is provided with a roller extending into the cam groove, and the peripheral surface of the roller is in a conical shape.

2. The flexible switch of claim 1, wherein a first crank is fixed to one of said first axial cams, a first pull rod is connected to a swing end of said first crank, and another end of said first pull rod is connected to said driving assembly.

3. The single articulated flexible switch flexure of claim 2, wherein the drive assembly includes:

the swinging end of the first swinging arm is connected with the other end of the first pull rod;

the driving piece is connected with the first swing arm to drive the first swing arm to swing.

4. The single articulated flexible switch flexure of claim 3, further comprising:

at least one second flexure group comprising upper and lower two second flexure structures each comprising a second axial cam and a second flexure push rod, the drive assembly adapted to drive the second flexure group.

5. The single articulated flexible switch flexure device of claim 4, wherein a second crank is attached to one of said second axial cams, said second crank having an oscillating end connected to said drive assembly by a transmission member.

6. The single articulated flexible switch flexure of claim 5, wherein said actuator includes:

a second swing arm;

two ends of the second pull rod are respectively connected with the swinging end of the first swing arm and the swinging end of the second swing arm;

and two ends of the third pull rod are respectively connected with the swinging end of the second swing arm and the swinging end of the second crank.

7. The single articulated flexible switch bending apparatus of any one of claims 1 to 6, wherein a third crank is fixed to the first axial cam, and the swinging ends of the third cranks of the upper and lower two first bending structures in the first bending group are connected by a vertical connecting rod.

8. The single articulated flexible switch bending apparatus of claim 7, wherein the first bending sets comprise a plurality of first bending sets, each of the first bending sets comprises two upper and lower first bending structures, one of the two first bending structures is fixedly connected with a fourth crank, and the swinging ends of the fourth cranks are connected by a horizontal connecting rod.

9. A single-opening joint flexible turnout, comprising:

the turnout comprises a plurality of sections of turnout beams, wherein each turnout beam is provided with a flexure plate;

a switch flexure at least partially inboard of the switch beam, the switch flexure being a single-split flexible switch flexure according to any one of claims 1-8;

the driving device is arranged at the bottom of the turnout beam;

and the central control system is in signal transmission with the driving assembly and the driving device respectively.

10. The single articulated flexible switch of claim 9, wherein said drive means comprises:

the fixed rack is provided with a rack;

the movable rack is supported on a walking surface at the upper part of the fixed rack;

the sliding chute assembly is arranged at the bottom of the turnout beam and is in contact fit with a driving roller on the moving rack;

the gear motor is fixed on the moving rack, and a gear at the output end of the gear motor is in transmission connection with the rack.

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