CN112211046B - Variable cross section switch beam and straddle type monorail switch with same - Google Patents
Variable cross section switch beam and straddle type monorail switch with same Download PDFInfo
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- CN112211046B CN112211046B CN202011121595.8A CN202011121595A CN112211046B CN 112211046 B CN112211046 B CN 112211046B CN 202011121595 A CN202011121595 A CN 202011121595A CN 112211046 B CN112211046 B CN 112211046B
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- turnout
- turnout beam
- section
- variable cross
- locking
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/22—Tracks for railways with the vehicle suspended from rigid supporting rails
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/22—Tracks for railways with the vehicle suspended from rigid supporting rails
- E01B25/24—Supporting rails; Auxiliary balancing rails; Supports or connections for rails
Abstract
The invention relates to the technical field of straddle type monorail transit, in particular to a variable cross-section turnout beam and a straddle type monorail turnout with the same, wherein the variable cross-section turnout beam comprises a variable cross-section turnout beam, a turnout beam driving device, a turnout beam locking device and an inter-beam connecting device; the variable cross-section turnout beam comprises a turnout beam body, a variable cross-section driving mechanism, a guide panel and a stabilizing panel, wherein the variable cross-section driving mechanism is arranged in the turnout beam body and is used for driving the guide panel and the stabilizing panel on two sides of the turnout beam body to synchronously act; the turnout beam driving device is arranged at the bottom of the turnout beam body and can provide power input for the variable-section single-rail turnout switch; the turnout beam locking device is connected with the connecting device between the beams, the turnout beam locking device is used for locking the turnout beam body, and the connecting device between the beams is used for connecting the turnout beam body and the track beam. The invention has the advantages of compact structure, excellent interchange performance and low design cost.
Description
Technical Field
The invention relates to the technical field of straddle type monorail transit, in particular to a variable-section turnout beam and a straddle type monorail turnout with the same.
Background
Straddle type monorail transit is rapidly developed in recent years due to the characteristics of low overall construction cost, strong climbing capability, low noise, comfortable riding and the like, and can be divided into 850 types, 700 types and 690 types according to the width of a track beam. The straddle type monorail switch is one of three key technologies of straddle type monorail traffic, and is a line connecting device for transferring vehicles from one line to another line.
At present, the straddle type single-track switch of the same type cannot be used interchangeably in lines with different track beam widths. The straddle type single-track turnout needs to design and manufacture a turnout beam according to the width of a track beam of the line of the turnout, and a corresponding turnout beam driving mechanism is designed in a matching manner. The straddle-type single-track switch of the same type cannot be used interchangeably among lines with different track beam widths, so that the design and manufacturing cost of the single-track switch is increased, and the problems of various straddle-type single-track switches, poor interchangeability and the like are caused.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problem to be solved by the application of the patent is how to provide the variable cross-section turnout beam with low design cost, excellent interchange performance, compact structure and wide application range and the straddle type single-track turnout with the variable cross-section turnout beam.
In order to solve the technical problems, the invention adopts the following technical scheme:
a variable cross-section turnout beam and a straddle type single-track turnout with the same comprise the variable cross-section turnout beam, a turnout beam driving device, a turnout beam locking device and an inter-beam connecting device; the variable cross-section turnout beam comprises a turnout beam body, a variable cross-section driving mechanism, a guide panel and a stabilizing panel, wherein the variable cross-section driving mechanism is arranged in the turnout beam body and is used for driving the guide panel and the stabilizing panel on two sides of the turnout beam body to synchronously act; the turnout beam driving device is arranged at the bottom of the turnout beam body and can provide power input for the turning and withdrawing of the turnout beam with the variable cross section; the turnout beam locking device is connected with the connecting device between the beams, the turnout beam locking device is used for locking the turnout beam body, and the connecting device between the beams is used for connecting the turnout beam body and the track beam.
Therefore, the variable-section driving mechanism drives the guide panels and the stabilizing panels on the two sides of the turnout beam body to synchronously move towards the two sides of the beam body respectively, so that the cross section of the variable-section turnout beam is changed to match a line without the width of a track beam. The turnout beam driving device drives the variable cross-section turnout beam to rotate around the pivot end of the variable cross-section turnout beam, so that the movable end of the variable cross-section turnout beam is in butt joint with track beams of different lines to form a turnout, and the requirement of train line changing is met. The turnout beam locking device drives the beam connecting device to synchronously connect the movable end of the turnout beam with the end of the track beam with the variable cross section in the locking process, so that the turnout crossing requirement of the train is met, and the connection is synchronously released in the unlocking process so as to meet the switching and removing requirement of the turnout beam with the variable cross section.
The variable cross-section driving mechanism comprises a truss, a push rod, a guide connecting rod, a stabilizing connecting rod, a guide telescopic rod, a stabilizing telescopic rod and a telescopic rod guide groove; a truss guide groove is formed in the turnout beam body, and two ends of the truss are in sliding fit in the truss guide groove; one end of the guide connecting rod is hinged with the truss, the other end of the guide connecting rod is hinged with the guide telescopic rod, and the other end of the guide telescopic rod is fixedly connected with the guide panel; one end of the stabilizing connecting rod is hinged with the truss, the other end of the stabilizing connecting rod is hinged with the stabilizing telescopic rod, and the other end of the stabilizing telescopic rod is fixedly connected with the stabilizing panel; the guide telescopic rod and the stabilizing telescopic rod are respectively matched in a telescopic rod guide groove in a sliding manner, a sliding groove allowing the guide connecting rod or the stabilizing connecting rod to slide is further arranged on the telescopic rod guide groove, and the telescopic rod guide groove is fixedly arranged in the turnout beam body; the push rod is fixedly installed inside the turnout beam body, and the action end of the push rod is fixedly connected with the truss and used for driving the truss to slide along the truss guide groove.
In this way, the truss guide groove plays a limiting and guiding role in the movement of the truss. The telescopic link guide way plays the direction and spacing effect to direction telescopic link and stable telescopic link.
When the variable cross-section turnout beam needs to change the cross-section size of the variable cross-section turnout beam to match with different track beam width lines, the control device of the straddle type single track turnout controls the push rod to move, the push rod drives the truss to move up and down in the truss guide groove along the height direction of the beam body, the truss drives the guide telescopic rods and the stabilizing telescopic rods on the left side and the right side to synchronously and reversely move through the guide connecting rods and the stabilizing connecting rods on the left side and the right side, and further drives the guide panels and the stabilizing panels fixedly connected to the guide telescopic rods and the stabilizing telescopic rods on the two sides of the turnout beam body to synchronously and reversely move respectively, so that the cross section of the turnout beam is changed. When the train passes through a turnout for bearing, the control device controls the push rod to stop moving and controls the variable cross-section locking mechanism arranged on the truss to lock, so that the position of the truss is ensured not to change, and the positions of the guide panel and the stabilizing panel are further ensured not to change when the train passes through the turnout for bearing.
Specifically, balls or rolling needles are arranged at the matching part of the truss and the truss guide groove. The sliding can be changed into rolling, and the friction resistance is reduced.
Specifically, the parts of the guide connecting rod, the truss and the guide telescopic rod which are hinged, and the parts of the stabilizing connecting rod, the truss and the stabilizing telescopic rod which are hinged are provided with rolling bearings. The sliding friction can be changed into rolling friction, so that the resistance is reduced, and the transmission efficiency is improved.
Specifically, the guide telescopic rod and the stable telescopic rod are provided with balls or roller pins at the matching parts of the guide grooves of the telescopic rods. The sliding can be changed into rolling, so that the resistance is reduced, and the transmission efficiency is improved.
Specifically, the push rod can be in the form of an electric push rod, a hydraulic push rod, an electric hydraulic push rod and the like.
Specifically, along roof beam body length direction, be provided with a plurality of direction connecting rods and stabilizing the connecting rod in the switch roof beam body, it is corresponding, also need be provided with respectively with direction connecting rod and stabilizing the same direction telescopic link of connecting rod quantity and stabilizing the telescopic link, further, also need be provided with the telescopic link guide way that leads the telescopic link and stabilize the telescopic link total quantity the same.
The end part of the telescopic rod guide groove far away from the guide panel and the stabilizing panel is sealed, a limiting block is fixedly mounted on the telescopic rod guide groove, and the limiting block is fixedly mounted at one end, close to the guide panel or the stabilizing panel, of the sliding groove.
Like this, the telescopic link guide way links firmly switch roof beam internal portion, telescopic link guide way one end opening, open end port and switch roof beam external surface parallel and level, other end port seal, and the closing end plays limiting displacement when the internal portion motion of switch roof beam is to direction telescopic link and stable telescopic link, and when avoiding breaking down, the damage of direction telescopic link and stable telescopic link to variable cross section switch roof beam cause bigger degree. The stopper links firmly on the telescopic link guide way, plays limiting displacement when moving to the external portion of switch roof beam to direction telescopic link and stable telescopic link, when avoiding breaking down, direction telescopic link and stable telescopic link cause bigger damage to variable cross section switch roof beam.
The truss comprises a first horizontal rod, a second horizontal rod, an inclined strut and a vertical rod, wherein the first horizontal rod and the second horizontal rod are arranged oppositely and parallelly along the vertical direction, the first horizontal rod and the second horizontal rod are fixedly connected through the inclined strut, the vertical rods are fixedly installed at two ends of the first horizontal rod and the second horizontal rod, and the vertical rods are vertically matched in the truss guide groove in a sliding mode. The structural strength and stability of the truss are enhanced.
And grooves matched with the guide panel and the stabilizing panel are formed in the outer side of the turnout beam body. When the guide panel and the stabilizing panel are respectively embedded in the guide groove and the stabilizing groove, the cross section of the variable cross-section turnout beam is minimum.
The turnout beam driving device comprises a driving motor, a driving reduction gearbox, a driving gear and a driving rack, wherein the driving motor and the driving reduction gearbox are fixedly arranged at the bottom of the turnout beam body, an input shaft of the driving reduction gearbox is in power coupling connection with an output shaft of the driving motor, an output shaft of the driving reduction gearbox is in coaxial connection with the driving gear, and the driving gear is meshed with the driving rack fixedly connected to a ground boss.
Therefore, when the variable cross-section turnout beam is switched, the control device of the straddle type single-rail turnout controls the driving motor to operate, and the power output of the driving motor drives the driving gear to rotate after being decelerated by the driving reduction box. Because the driving rack is fixedly connected to the ground boss and meshed with the driving gear, when the driving gear rotates, the reaction force of the driving gear on the driving rack pushes the variable cross-section turnout beam to rotate around the pivot end of the variable cross-section turnout beam, so that the movable end of the variable cross-section turnout beam is in butt joint with different lines to form a turnout. And after the switch is in place, the driving motor stops rotating, the turnout beam locking device locks, and the position of the variable cross-section turnout beam is fixed.
Specifically, an input shaft of the driving reduction box is perpendicular to an output shaft.
Specifically, an output shaft of the driving motor is connected with an input shaft of the driving reduction box through a safety coupling. When overload occurs, the safety coupling plays a role in overload protection for the turnout beam driving device.
The driving rack is in an arc shape with the pivot end of the variable cross-section turnout beam as a circle center. Namely an arc line, and the length of the arc line is set according to the switching distance of the monorail turnout.
The turnout beam locking device comprises a locking motor, a locking reduction gearbox and a locking push rod, wherein the locking motor, the locking reduction gearbox and the locking push rod are installed at the movable end of the variable cross-section turnout beam, a locking groove is formed in the end portion of a track beam, the end portion of the track beam is in butt joint with the movable end of the variable cross-section turnout beam, the locking motor and the locking reduction gearbox are in power coupling connection, a rack is machined on the locking push rod, and the locking push rod is connected with the locking reduction gearbox through a gear-rack meshing pair.
When the variable cross-section turnout beam is locked, the power output by the locking motor is decelerated through the locking reduction box, and then the locking push rod is driven to be inserted into the locking groove, so that the turnout beam is fixed in position; when the turnout beam with the variable cross section is unlocked, the locking motor rotates reversely, the output power of the locking motor is decelerated through the locking reduction box, the locking push rod is driven to exit from the locking groove, and the locking of the turnout beam is released.
Specifically, the movable end of the turnout beam body is provided with a locking push rod guide groove. The locking push rod is guided and limited.
The connecting device between the beams comprises a connecting plate and a locking connecting rod, the connecting plate is hinged to the top of the turnout beam body, and the connecting plate is hinged to the locking push rod through the locking connecting rod.
After the turnout beam is switched, a gap exists between the movable end of the turnout beam and the track beam which is in butt joint with the movable end of the turnout beam in opposite directions, and the gap can influence the stable operation of a train. The existing top connecting device between beams mostly adopts a movable finger-type plate, and can generate larger impact and noise when the switch of a turnout beam is connected.
The beam-to-beam connecting device and the turnout beam locking device move synchronously. In the locking process of the turnout beam locking device, the connecting plate is driven by the locking connecting rod to synchronously rotate downwards towards the top of the turnout beam so as to complete the connection of the movable end of the turnout beam and the rail beam butted with the movable end of the turnout beam in the opposite direction, and meet the requirement of passing a turnout of a train; the turnout beam locking device drives the connecting plate to synchronously deviate from the top of the turnout beam to rotate upwards through the locking connecting rod in the unlocking process, the movable end of the turnout beam and the movable end of the turnout beam are oppositely connected with the rail beam, and the switching requirement of the turnout beam is met.
The movable end of the variable cross-section turnout beam and the top of the turnout beam butt joint track beam opposite to the movable end of the turnout beam are provided with accommodating grooves used for accommodating connecting plates, and the accommodating grooves are matched with the connecting plates. After the connecting device between the beams is connected with the movable end of the turnout beam and the track beam butted with the movable end of the turnout beam, the connecting plate is just embedded in the accommodating groove, so that the upper surface of the connecting plate is flush with the turnout beam and the track beam, and the stability of the train passing turnout is ensured.
Specifically, the shape of the connecting plate can be rectangular, semicircular or other shapes convenient for connection.
Furthermore, transition arcs are processed on the periphery of the connecting plate, so that the connecting plate can be conveniently connected with the turnout beam body and the track beam.
In conclusion, the invention has the advantages of compact structure, excellent exchange performance and low design cost.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a view A-A of FIG. 2;
FIG. 4 is a sectional view taken at I in FIG. 3;
FIG. 5 is a left side view of FIG. 4;
FIGS. 6(a) - (d) are schematic views of the variable cross-section process of the variable cross-section turnout beam;
fig. 7(a) - (b) are schematic diagrams showing the movement of the locking device and the connecting device between beams;
fig. 8 is a schematic view of a connection plate structure.
Fig. 9 is a top view of fig. 8.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings. In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "upper, lower" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
As shown in fig. 1-2, a variable cross-section turnout beam and a straddle-type single-track turnout with the same comprise a variable cross-section turnout beam 2, a turnout beam driving device 3, a turnout beam locking device 4 and an inter-beam connecting device 1; the variable cross-section turnout beam comprises a turnout beam body 5, a variable cross-section driving mechanism 6, a guide panel 7 and a stabilizing panel 8, wherein the variable cross-section driving mechanism 6 is installed in the turnout beam body 5 and is used for driving the guide panel 7 and the stabilizing panel 8 on two sides of the turnout beam body 5 to synchronously move; the turnout beam driving device 3 is arranged at the bottom of the turnout beam body 5 and can provide power input for the turning and withdrawing of the turnout beam 2 with the variable cross section; the turnout beam locking device 4 is connected with the beam connecting device 1 in an interconnecting mode, the turnout beam locking device 4 is used for locking a turnout beam body, and the beam connecting device 1 is used for connecting the turnout beam body and a track beam.
In this way, the variable cross-section driving mechanism 6 respectively and synchronously moves towards the two sides of the turnout beam body 5 by driving the guide panel 7 and the stabilizing panel 8 on the two sides of the turnout beam body, so that the cross section of the variable cross-section turnout beam is changed to match a line without the width of a track beam. The turnout beam driving device 3 drives the variable cross-section turnout beam to rotate around the pivot end of the variable cross-section turnout beam, so that the movable end of the variable cross-section turnout beam is in butt joint with track beams of different lines to form a turnout, and the requirement of train line changing is met. The turnout beam locking device 4 drives the inter-beam connecting device 1 to synchronously connect the movable end of the turnout beam with the end of the track beam with the variable cross section through the locking connecting rod 102 in the locking process, so that the turnout passing requirement of a train is met, and synchronously removes the connection in the unlocking process so as to meet the switching and withdrawing requirement of the turnout beam with the variable cross section.
As shown in fig. 2 to 5, the variable cross-section driving mechanism comprises a truss 60, a push rod 62, a guide connecting rod 63, a stabilizing connecting rod 67, a guide telescopic rod 65, a stabilizing telescopic rod 68 and a telescopic rod guide groove 64; a truss guide groove 61 is formed in the turnout beam body 5, and two ends of the truss 60 are in sliding fit in the truss guide groove 61; one end of the guide connecting rod 63 is hinged with the truss 60, the other end of the guide connecting rod is hinged with the guide telescopic rod 65, and the other end of the guide telescopic rod 65 is fixedly connected with the guide panel 7; one end of the stabilizing connecting rod 68 is hinged with the truss 60, the other end of the stabilizing connecting rod is hinged with the stabilizing telescopic rod 67, and the other end of the stabilizing telescopic rod 67 is fixedly connected with the stabilizing panel 8; the guiding telescopic rod 65 and the stabilizing telescopic rod 68 are respectively in sliding fit in the telescopic rod guide groove 64, a sliding groove allowing the guiding connecting rod or the stabilizing connecting rod to slide is further arranged on the telescopic rod guide groove 64, and the telescopic rod guide groove 64 is fixedly arranged inside the turnout beam body 5; the push rod 62 is fixedly installed inside the turnout beam body 5, and an action end of the push rod 62 is fixedly connected with the truss 60 and is used for driving the truss 60 to slide along the truss guide groove 61.
Thus, the truss guide groove 61 acts as a limit and guide for the movement of the truss 60. The telescopic rod guide groove 64 plays a role in guiding and limiting the guiding telescopic rod 65 and the stabilizing telescopic rod 68.
As shown in fig. 6(a) - (d), when the cross-sectional size of the variable cross-section turnout beam 2 needs to be increased to match with the line with different track beam widths, the control device of the straddle-type single track turnout controls the push rod 62 to push the truss 60 to move towards the bottom of the beam body along the truss guide groove 61, the truss 60 further drives the guide telescopic rods 65 and the stabilizing telescopic rods 68 on the two sides to synchronously and reversely move towards the outer side of the beam body through the guide connecting rods 63 and the stabilizing connecting rods 67 on the left and right sides, respectively, and further drives the guide panel 7 fixedly connected to the guide telescopic rods 65 and the stabilizing panel 8 fixedly connected to the stabilizing telescopic rods 68 to synchronously and reversely move towards the outer side of the beam body, so as to increase the cross section of the variable cross-section turnout beam 2; on the contrary, when the cross-sectional size of the variable cross-section turnout beam 2 needs to be reduced to match with different track beam width lines, the control device of the straddle type single track turnout controls the push rod 62 to push the truss 60 to move towards the top of the beam body along the truss guide groove 61, the truss 60 further drives the guide telescopic rods 65 and the stabilizing telescopic rods 68 on the two sides to synchronously and reversely move towards the inner side of the beam body through the guide connecting rods 63 and the stabilizing connecting rods 67 on the left side and the right side of the truss 60 respectively, and further drives the guide panels 7 fixedly connected on the guide telescopic rods 65 and the stabilizing panels 8 fixedly connected on the stabilizing telescopic rods 68 to synchronously and reversely move towards the inner side of the beam body respectively, so that the cross section of the variable cross-section turnout beam 2 is reduced.
Specifically, balls or needles are arranged at the matching part of the truss 60 and the truss guide groove 61. Changing sliding into rolling reduces frictional resistance.
Specifically, rolling bearings are arranged at the hinged parts of the guide connecting rod 63, the truss 60 and the guide telescopic rod 65 and the hinged parts of the stabilizing connecting rod 67, the truss 60 and the stabilizing telescopic rod 68. The sliding friction is changed into rolling friction, so that the resistance is reduced, and the transmission efficiency is improved.
Specifically, the parts of the guiding telescopic rod 65 and the stabilizing telescopic rod 68 which are matched with the telescopic rod guide groove 64 are provided with balls or roller pins. The sliding is changed into rolling, so that the resistance is reduced, and the transmission efficiency is improved.
Specifically, the push rod 62 may be in the form of an electric push rod, a hydraulic push rod, an electric hydraulic push rod, or the like.
Specifically, a plurality of guide connecting rods 63 and stabilizing connecting rods 67 are hinged to the truss 60, and accordingly, the number of guide telescopic rods 65 and stabilizing telescopic rods 68 equal to the number of the guide connecting rods 63 and stabilizing connecting rods 67 is also required to be provided, and further, the total number of telescopic rod guide grooves 64 equal to the total number of the guide telescopic rods 65 and stabilizing telescopic rods 68 is also required to be provided.
Wherein, the end that guiding panel 7 and stable panel 8 are kept away from to telescopic link guide way 64 is sealed, fixed mounting has stopper 66 on the telescopic link guide way 64, stopper 66 fixed mounting be in the spout is close to guiding panel 7 or stable panel 8's one end.
Thus, the telescopic rod guide groove 64 is fixedly connected inside the turnout beam body 5, one end of the telescopic rod guide groove is open, the other end of the telescopic rod guide groove is closed, the port of the open end of the telescopic rod guide groove is flush with the outer surface of the turnout beam body 5, when the guide telescopic rod 65 and the stabilizing telescopic rod 68 move towards the turnout beam body 5, the closed end of the telescopic rod guide groove 64 plays a limiting role for the guide telescopic rod 65 and the stabilizing telescopic rod 68, and when a fault occurs, the guide telescopic rod 64 and the stabilizing telescopic rod 68 cause damage to the turnout beam 2 with the variable cross section to a greater extent. The limiting block 66 is fixedly connected to the telescopic rod guide groove 64, and plays a limiting role when the guide telescopic rod 65 and the stabilizing telescopic rod 68 move towards the outside of the turnout beam body 5, so that the guide telescopic rod 65 and the stabilizing telescopic rod 68 are prevented from damaging the turnout beam 2 with a variable cross section to a greater extent when a fault occurs.
The truss 60 comprises a first horizontal rod 601, a second horizontal rod 602, an inclined strut 603 and a vertical rod 604, wherein the first horizontal rod 601 and the second horizontal rod 602 are arranged in a right-to-right and parallel manner along the vertical direction, the first horizontal rod 601 and the second horizontal rod 602 are fixedly connected through the inclined strut 603, the vertical rod 604 is fixedly installed at both ends of the first horizontal rod 601 and the second horizontal rod 602, and the vertical rod 604 is vertically and slidably fitted in the truss guide groove 61. The structural strength and stability of the truss are enhanced.
And a groove matched with the guide panel and the stabilizing panel is arranged on the outer side of the turnout beam body 5. When the guide panel and the stabilizing panel are respectively embedded in the guide groove and the stabilizing groove, the cross section of the variable cross-section turnout beam is minimum.
When the truss 60 is arranged at the middle position of the turnout beam body 5, the external dimensions of the guide connecting rod 63 and the stabilizing connecting rod 67 are the same, and the external dimensions of the guide telescopic rod 65 and the stabilizing telescopic rod 68 are the same.
The turnout beam driving device comprises a driving motor 301, a driving reduction gearbox 302, a driving gear 303 and a driving rack 304, wherein the driving motor 301 and the driving reduction gearbox 302 are both fixedly installed at the bottom of the turnout beam body 5, an input shaft of the driving reduction gearbox 302 is in power coupling connection with an output shaft of the driving motor 301, the output shaft of the driving reduction gearbox 302 is in coaxial connection with the driving gear 303, and the driving gear 303 is meshed with the driving rack 304 fixedly connected to a ground boss 305.
When the variable cross-section turnout beam 2 is switched, the control device of the straddle type single-rail turnout controls the driving motor 301 to operate, and after the power output of the driving motor 301 is decelerated by the driving reduction box 302, the driving gear 303 is driven to rotate. Since the drive rack 304 is attached to the ground boss 305 and engages the drive gear 303, when the drive gear 303 rotates, the reaction force imparted by the drive gear 303 to the drive rack 304 pushes the variable cross section switch beam 2 to rotate about the variable cross section switch beam pivot end 201 so that the variable cross section switch beam free end 202 interfaces with a different line to form a switch. After the switch is in place, the driving motor 301 stops rotating, the turnout beam locking device 4 locks, and the position of the variable cross-section turnout beam 2 is fixed.
Specifically, a dustproof cover is integrally arranged at the meshing part of the driving gear 303 and the driving rack 304. The impurities such as dust and the like are prevented from falling into the meshing part of the driving gear 303 and the driving rack 304 so as to influence the normal operation of the turnout beam driving device 3.
Specifically, the input shaft of the drive reduction box 302 is perpendicular to the output shaft.
Specifically, the output shaft of the driving motor 301 is connected with the input shaft of the driving reduction box 302 through a safety coupling. When overload occurs, the safety coupling plays a role in overload protection for the turnout beam driving device.
The driving rack 304 is in an arc shape with the pivot end 201 of the variable cross-section turnout beam as a circle center. Namely an arc, the length of which is set according to the switching distance of the single-track switch.
As shown in fig. 7(a) - (b), fig. 8 and fig. 9, the switch beam locking device 4 comprises a locking motor 403, a locking reduction box 402 and a locking push rod 401 which are installed at the movable end 202 of the switch beam with variable cross section, the end of the track beam which is butted with the movable end 202 of the switch beam with variable cross section is provided with a locking groove, the locking motor 403 and the locking reduction box 402 are in dynamic coupling connection, a rack is processed on the locking push rod 401, and the locking push rod 401 is connected with the locking reduction box 402 through a gear-rack meshing pair.
When the variable cross-section turnout beam 2 is locked, the power output by the locking motor 403 is decelerated through the locking reduction box 402, and then the locking push rod 401 is driven to be inserted into the locking groove, so that the turnout beam is fixed in position; on the contrary, when the turnout 2 beam with the variable cross section is unlocked, the locking motor 403 rotates reversely, the output power is decelerated by the locking reduction box 402, the locking push rod 401 is driven to withdraw from the locking groove, and the locking of the turnout beam is released.
Specifically, the locking end of the locking push rod 401 is provided with a locking roller. The locking push rod 401 is easily inserted into the locking groove for locking.
Specifically, the movable end 202 of the switch beam body is provided with a locking push rod guide groove. The locking push rod is guided and limited.
The inter-beam connecting device 1 comprises a connecting plate 101 and a locking connecting rod 102, wherein the connecting plate 101 is hinged to the top of the turnout beam body 5, and the connecting plate 101 is hinged to a locking push rod 401 through the locking connecting rod 102.
After the switch beam switches, there is a gap between the free end 202 of the switch beam and the rail beam opposite to and abutting against the free end 202 of the switch beam, and the gap will affect the stable operation of the train. The existing top connecting device between beams mostly adopts a movable finger plate, and can generate larger impact and noise when the switch of the turnout beam is connected.
The beam-to-beam connecting device 1 and the turnout beam locking device 4 move synchronously. In the locking process of the turnout beam locking device 4, the locking push rod 401 drives the connecting plate 101 to synchronously rotate downwards towards the top of the turnout beam through the locking connecting rod 102 so as to connect the movable end 202 of the turnout beam and a track beam oppositely butted with the movable end 202 of the turnout beam, and the requirement of a train passing through a turnout is met; in the unlocking process of the turnout beam locking device 4, the locking push rod 401 drives the connecting plate 101 to synchronously depart from the top of the turnout beam to rotate upwards through the locking connecting rod 102, the movable end 202 of the turnout beam and the movable end 202 of the turnout beam are disconnected with each other and butt jointed with the track beam in opposite directions, and the switching requirement of the turnout beam is met.
Wherein, the expansion end 202 of variable cross section switch roof beam and with switch roof beam expansion end 202 all be provided with the holding tank that is used for holding connecting plate 101 with the top of butt joint track roof beam in opposite directions, the holding tank matches with connecting plate 101. After the inter-beam connecting device 1 is connected with the movable end 202 of the turnout beam and the track beam butted with the movable end 202 of the turnout beam, the connecting plate 101 is just embedded in the groove, so that the upper surface of the connecting plate is flush with the turnout beam and the track beam, and the stability of the train passing through the turnout is ensured.
Specifically, the shape of the connection plate 101 may be rectangular, semicircular, or other shapes that facilitate connection.
Furthermore, transition arcs are processed on the periphery of the connecting plate 101, so that the connecting plate can be conveniently connected with the turnout beam body and the track beam.
Finally, it should be noted that: various modifications and alterations of this invention may be made by those skilled in the art without departing from the spirit and scope of this invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (6)
1. A variable cross-section turnout beam and a straddle type single-track turnout with the same are characterized by comprising a variable cross-section turnout beam, a turnout beam driving device, a turnout beam locking device and an inter-beam connecting device;
the variable cross-section turnout beam comprises a turnout beam body, a variable cross-section driving mechanism, a guide panel and a stabilizing panel, wherein the variable cross-section driving mechanism is arranged in the turnout beam body and is used for driving the guide panel and the stabilizing panel on two sides of the turnout beam body to synchronously act;
the turnout beam driving device is arranged at the bottom of the turnout beam body and can provide power input for the switching and withdrawing of the variable-section single-rail turnout;
the turnout beam locking device is connected with the inter-beam connecting device in an interconnecting mode, the turnout beam locking device is used for locking a turnout beam body, and the inter-beam connecting device is used for connecting the turnout beam body and a track beam;
the variable cross-section driving mechanism comprises a truss, a push rod, a guide connecting rod, a stabilizing connecting rod, a guide telescopic rod, a stabilizing telescopic rod and a telescopic rod guide groove;
a truss guide groove is formed in the turnout beam body, and two ends of the truss are in sliding fit in the truss guide groove;
one end of the guide connecting rod is hinged with the truss, the other end of the guide connecting rod is hinged with the guide telescopic rod, and the other end of the guide telescopic rod is fixedly connected with the guide panel; one end of the stabilizing connecting rod is hinged with the truss, the other end of the stabilizing connecting rod is hinged with the stabilizing telescopic rod, and the other end of the stabilizing telescopic rod is fixedly connected with the stabilizing panel; the guide telescopic rod and the stabilizing telescopic rod are respectively matched in a telescopic rod guide groove in a sliding manner, a sliding groove allowing the guide connecting rod or the stabilizing connecting rod to slide is further arranged on the telescopic rod guide groove, and the telescopic rod guide groove is fixedly arranged in the turnout beam body;
the push rod is fixedly arranged in the turnout beam body, and the action end of the push rod is fixedly connected with the truss and is used for driving the truss to slide along the truss guide groove;
the end part of the telescopic rod guide groove, which is far away from the guide panel and the stabilizing panel, is closed, a limiting block is fixedly arranged on the telescopic rod guide groove, and the limiting block is fixedly arranged at one end, close to the guide panel or the stabilizing panel, of the telescopic rod guide groove;
the truss comprises a first horizontal rod, a second horizontal rod, an inclined strut and a vertical rod, wherein the first horizontal rod and the second horizontal rod are opposite to each other in the vertical direction and are arranged in parallel, the first horizontal rod and the second horizontal rod are fixedly connected through the inclined strut, the vertical rods are fixedly arranged at two ends of the first horizontal rod and the second horizontal rod, and the vertical rods are vertically matched in the truss guide grooves in a sliding manner;
and a groove matched with the guide panel and the stabilizing panel is formed in the outer side of the turnout beam body.
2. The variable cross-section turnout beam and the straddle type single-rail turnout with the variable cross-section turnout beam are characterized in that the turnout beam driving device comprises a driving motor, a driving reduction gearbox, a driving gear and a driving rack, wherein the driving motor and the driving reduction gearbox are fixedly arranged at the bottom of a turnout beam body, an input shaft of the driving reduction gearbox is in power coupling connection with an output shaft of the driving motor, an output shaft of the driving reduction gearbox is in coaxial connection with the driving gear, and the driving gear is meshed with the driving rack fixedly connected to a boss on the bottom surface.
3. The variable cross-section turnout beam and the straddle-type single-track turnout with the same according to claim 2, wherein the driving rack is in a circular arc shape with a pivot end of the variable cross-section turnout beam as a center.
4. The variable cross-section turnout beam and the straddle type single-rail turnout with the variable cross-section turnout beam are characterized in that the turnout beam locking device comprises a locking motor, a locking reduction box and a locking push rod, the locking motor is installed at the movable end of the variable cross-section turnout beam, the end part of the rail beam, butted with the movable end of the variable cross-section turnout beam, is provided with a locking groove, the locking motor is in power coupling connection with the locking reduction box, a rack is machined on the locking push rod, and the locking push rod is connected with the locking reduction box through a gear-rack meshing pair.
5. The variable cross-section turnout beam and the straddle-type single-track turnout with the variable cross-section turnout beam according to claim 1, wherein the inter-beam connecting device comprises a connecting plate and a locking connecting rod, the connecting plate is hinged to the top of the turnout beam body, and the connecting plate is hinged to the locking push rod through the locking connecting rod.
6. The variable cross-section turnout beam and the straddle-type single-rail turnout with the same according to claim 1, wherein the movable end of the variable cross-section turnout beam and the top of the track beam are both provided with a receiving groove for receiving the connecting plate, and the receiving groove is matched with the connecting plate.
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| CN202011121595.8A CN112211046B (en) | 2020-10-19 | 2020-10-19 | Variable cross section switch beam and straddle type monorail switch with same |
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| CN202011121595.8A CN112211046B (en) | 2020-10-19 | 2020-10-19 | Variable cross section switch beam and straddle type monorail switch with same |
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| CN112211046B true CN112211046B (en) | 2022-05-06 |
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