Linkage swing arm steering system for monorail transit

Abstract

The present application relates to the technical field of suspended rail transit, and particularly relates to a linkage swing arm steering system for monorail transit, which aims to solve the problems of steering and track changing of suspended rail transit and uneven stress on bogies during steering and track changing. The present application comprises a first swing arm, a second swing arm and a third swing arm, which can swing in a horizontal plane to make the first swing arm butt joint with the second swing arm or the third swing arm; the first swing arm comprises a swing beam, a left running plate and a right running plate; the swing beam can swing in the horizontal plane, and the left running plate and the right running plate are connected to the lower end of the swing beam and are in sliding connection with the swing beam; the left running plate and the right running plate can move in a vertical direction. The present application realizes steering and track changing through the swing butt joint of the first swing arm, the second swing arm and the third swing arm, and avoids the problem of bogie deformation caused by uneven stress on the bogies due to the suspension of running wheels through the vertically movable left running plate and the right running plate.

Description

Technical Field

[0001] This invention relates to the field of suspended rail transit technology, and more particularly to a linked swing arm steering system for monorail rail transit. Background Technology

[0002] In suspended rail transit, existing steering systems mostly rely on switch machines to move movable rails or movable core devices, using mechanical action to force track changes for steering or lane switching. Traditional turnouts include a turnout beam, switch machine, drive unit, and control system. During operation, the control system controls the drive unit to control the turnout's switching. After the switch is completed, the control system also controls the locking device to lock the movable components. Existing steering systems suffer from interference issues, resulting in the lack of running boards at track changes. This inadequate support for the running wheels leads to uneven stress on the bogies during track changes, causing bogie deformation and excessive compression of the guide wheels. Summary of the Invention

[0003] The purpose of this invention is to provide a linked swing arm steering system for monorail transit to solve the problems of uneven force on the bogie during steering and track changing in suspended rail transit.

[0004] To solve the above-mentioned technical problems, the technical solution provided by the present invention is as follows:

[0005] A linked swing arm steering system for monorail transit includes a first swing arm, a second swing arm, and a third swing arm. The first, second, and third swing arms can swing in a horizontal plane to engage with the second or third swing arm, thereby forming a right guide channel with the first and second swing arms or a left guide channel with the first and third swing arms. A guide wheel abuts against the right guide channel and rolls along the right guide channel or abuts against the left guide channel and rolls along the left guide channel. The first swing arm includes a swing beam, a left traveling plate, and a right traveling plate. The swing beam can swing in a horizontal plane, and the left and right traveling plates are connected to the lower end of the swing beam and slidably connected to the swing beam. The left and right traveling plates can move in a vertical direction.

[0006] Furthermore, the first swing arm also includes a left telescopic push rod and a right telescopic push rod; one end of the left telescopic push rod is connected to the swing beam and the other end is connected to the left traveling plate, which is used to drive the left traveling plate to move in the vertical direction; one end of the right telescopic push rod is connected to the swing beam and the other end is connected to the right traveling plate, which is used to drive the right traveling plate to move in the vertical direction.

[0007] Furthermore, the linkage swing arm steering system for monorail transit also includes a drive mechanism, which includes a first drive assembly, which includes a first lateral movement member and a second lateral movement member. The first lateral movement member is engaged with the first swing arm, and the second lateral movement member is engaged with the second and third swing arms. Both the first and second lateral movement members can move along a first direction to drive the first, second, and third swing arms to swing synchronously.

[0008] Furthermore, the first drive assembly also includes a limiting rod, the length direction of which is parallel to the first direction; the first lateral movement member is slidably connected to the limiting rod and can move along the length direction of the limiting rod.

[0009] Furthermore, the first drive assembly also includes a first rocker arm with a first elongated hole, and a first convex shaft on the first transverse member. The first convex shaft is inserted into the first elongated hole and can slide along the first elongated hole; the first rocker arm swings to drive the first transverse member to move along a first direction.

[0010] Furthermore, the first drive assembly also includes a second rocker arm with a second elongated hole, and a second convex shaft on the second transverse member. The second convex shaft is inserted into the second elongated hole and can slide along the second elongated hole; the second rocker arm swings to drive the second transverse member to move along the first direction.

[0011] Furthermore, the first drive assembly also includes a first telescopic rod, a first connecting rod, and a second connecting rod; one end of the first connecting rod is hinged to the first swing rod, and the other end is hinged to the first telescopic rod; one end of the second connecting rod is hinged to the second swing rod, and the other end is hinged to the first telescopic rod; the first telescopic rod extends and retracts to drive the first connecting rod and the second connecting rod, so that the first connecting rod drives the first swing rod to swing, and the second connecting rod drives the second swing rod to swing.

[0012] Furthermore, the drive mechanism also includes a second drive assembly, which includes a first auxiliary rocker arm and a second auxiliary rocker arm; a sliding groove is provided on the first transverse member, the length direction of which is perpendicular to the first direction; a first auxiliary convex shaft is provided on the first auxiliary rocker arm, the first auxiliary convex shaft is inserted into the sliding groove and can slide along the sliding groove; one end of the second auxiliary rocker arm is hinged to the second transverse member and configured to swing in the horizontal plane to drive the second transverse member to move in the horizontal plane.

[0013] Furthermore, the second drive assembly also includes a drive shaft; a drive gear is provided on the drive shaft, a first driven gear is provided at the end of the first auxiliary rocker arm away from the first lateral movement member, and a second driven gear is provided at the end of the second auxiliary rocker arm away from the second lateral movement member; the drive shaft swings around its own axis, thereby causing the drive gear to rotate so as to drive the first driven gear and the second driven gear to rotate around their own axes respectively.

[0014] Furthermore, the second drive assembly also includes a second telescopic rod and a drive link. One end of the drive link is hinged to the second telescopic rod, and the other end is hinged to the drive shaft. The second telescopic rod extends and retracts to drive the drive link, causing the drive link to drive the drive shaft to swing around its own axis.

[0015] In summary, the technical effects achieved by this invention are as follows:

[0016] The present invention provides a linkage swing arm steering system for monorail transit, comprising a first swing arm, a second swing arm, and a third swing arm. The first, second, and third swing arms can swing in a horizontal plane to engage with the second or third swing arm, thereby forming a right guide channel with the first and second swing arms or a left guide channel with the first and third swing arms. The guide wheel abuts against the right guide channel and rolls along the right guide channel or abuts against the left guide channel and rolls along the left guide channel. The first swing arm includes a swing beam, a left traveling plate, and a right traveling plate. The swing beam can swing in a horizontal plane, and the left and right traveling plates are connected to the lower end of the swing beam and slidably connected to the swing beam. The left and right traveling plates can move in the vertical direction.

[0017] The linkage swing arm steering system for monorail transit provided by this invention forms a smooth right or left guide channel through the swinging connection of the first, second, and third swing arms, enabling smooth turning and track changing. At the same time, the vertically movable left and right running plates avoid interference with the original running plates of the track when the first swing arm connects with the second or third swing arm, ensuring that the running wheels are not suspended in the air when turning and track changing, avoiding uneven stress on the bogie caused by the running wheels being suspended, preventing bogie deformation and excessive compression of the guide wheels, and reducing the lifespan of the bogie and guide wheels. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of a linkage swing arm steering system for monorail transit provided in an embodiment of the present invention;

[0020] Figure 2 A front view of the linked swing arm steering system for monorail transit provided in an embodiment of the present invention in a first state;

[0021] Figure 3 for Figure 2AA section view in the middle;

[0022] Figure 4 A top view of the linkage swing arm steering system for monorail transit provided in an embodiment of the present invention in its first state;

[0023] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0024] Figure 6 A front view of the linked swing arm steering system for monorail transit provided in an embodiment of the present invention in a second state;

[0025] Figure 7 for Figure 6 AA section view in the middle;

[0026] Figure 8 This is a top view of the linkage swing arm steering system for monorail transit provided in the embodiments of the present invention in the second state;

[0027] Figure 9 This is a schematic diagram of the first swing arm;

[0028] Figure 10 This is a top view of the first swing arm;

[0029] Figure 11 This is a schematic diagram of the drive shaft.

[0030] Figure 12 This is a schematic diagram of the structure of the first transverse component.

[0031] Icons: 10-First swing arm; 20-Second swing arm; 30-Third swing arm; 40-Drive mechanism; 50-Rail body; 100-First drive assembly; 200-Second drive assembly; 101-Swing beam; 102-Left traveling plate; 103-Right traveling plate; 104-Fixed traveling plate; 110-First transverse component; 120-Second transverse component; 130-Limiting rod; 140-First swing arm; 150-Second swing arm; 160-First telescopic rod; 170-First connecting rod; 180-Second connecting rod; 210-First auxiliary swing arm; 220-Second auxiliary swing arm; 230-Second telescopic rod; 240-Drive connecting rod; 250-Drive shaft; 111-First convex shaft; 112-Sliding groove; 251-Drive gear; 252-Connecting swing arm. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0034] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0035] The existing steering system lacks a running plate at the track change point due to interference issues, which cannot effectively support the running wheels to pass through. This results in uneven stress on the bogie during track changes, causing bogie deformation and excessive compression of the guide wheels.

[0036] In view of this, the present invention provides a linkage swing arm steering system for monorail transit, including a first swing arm 10, a second swing arm 20, and a third swing arm 30. The first swing arm 10, the second swing arm 20, and the third swing arm 30 can swing in a horizontal plane so that the first swing arm 10 engages with the second swing arm 20 or the third swing arm 30, thereby forming a right guide channel with the first swing arm 10 and the second swing arm 20 or forming a left guide channel with the first swing arm 10 and the third swing arm 30. The guide wheel abuts against the right guide channel and rolls along the right guide channel or abuts against the left guide channel and rolls along the left guide channel. The first swing arm 10 includes a swing beam 101, a left traveling plate 102, and a right traveling plate 103. The swing beam 101 can swing in a horizontal plane, and the left traveling plate 102 and the right traveling plate 103 are connected to the lower end of the swing beam 101 and slidably connected to the swing beam 101. The left traveling plate 102 and the right traveling plate 103 can move in the vertical direction.

[0037] The linkage swing arm steering system for monorail transit provided by this invention forms a smooth right or left guide channel through the swinging connection of the first swing arm 10, the second swing arm 20, and the third swing arm 30, which can smoothly complete the steering and track change. At the same time, the vertically movable left travel plate 102 and right travel plate 103 avoid interference with the original travel plate of the track when the first swing arm 10 connects with the second swing arm 20 or the third swing arm 30. This ensures that the travel wheels are not suspended when passing through the track while achieving the steering and track change, avoids uneven stress on the bogie caused by the travel wheels being suspended, avoids bogie deformation and excessive compression of the guide wheels, and avoids reducing the life of the bogie and guide wheels.

[0038] The following combination Figures 1-12 The structure and shape of the linked swing arm steering system for monorail transit provided in this embodiment are described in detail:

[0039] The linkage swing arm steering system for monorail transit provided in this embodiment includes a first swing arm 10, a second swing arm 20, a third swing arm 30, a drive mechanism 40, and a track body 50, as follows: Figure 1 , Figure 3 As shown, the first swing arm 10, the second swing arm 20 and the third swing arm 30 are hinged to the track body 50 and are used to cooperate with the guide wheel to provide guidance for the bogie; the drive mechanism 40 is installed above the track body 50 and is used to drive the first swing arm 10, the second swing arm 20 and the third swing arm 30 to swing and lock the position of each swing arm.

[0040] In this embodiment, the first swing arm 10 includes a swing beam 101, a left traveling plate 102, and a right traveling plate 103, as shown below. Figure 9 , Figure 10 As shown; the swing beam 101 can swing in the horizontal plane, and the left traveling plate 102 and the right traveling plate 103 are connected to the lower end of the swing beam 101 and are slidably connected to the swing beam 101; the left traveling plate 102 and the right traveling plate 103 can move in the vertical direction. The shapes of the left traveling plate 102 and the right traveling plate 103 must be such that they match the traveling plate of the track body 50 when swinging to the working state, avoiding gaps between them and the traveling plate of the track body 50, which would cause bumps and vibrations when the traveling wheels pass over them, thus affecting the riding experience.

[0041] To prevent the left traveling plate 102 and right traveling plate 103 from interfering with the track body 50, the first swing arm 10 also includes a left telescopic push rod and a right telescopic push rod. One end of the left telescopic push rod is connected to the swing beam 101, and the other end is connected to the left traveling plate 102, used to drive the left traveling plate 102 to move vertically. One end of the right telescopic push rod is connected to the swing beam 101, and the other end is connected to the right traveling plate 103, used to drive the right traveling plate 103 to move vertically. The extension and retraction of the telescopic push rods prevents the left traveling plate 102 and right traveling plate 103 from interfering with the track body 50.

[0042] Meanwhile, to ensure smooth operation, a receiving groove is provided on the side wall of the track body 50 to accommodate the second swing arm 20 and the third swing arm 30, so as to ensure the smoothness of the track side wall and prevent the second swing arm 20 and the third swing arm 30 from protruding from the track side wall or forming a depression.

[0043] Specifically, the linkage swing arm steering system for monorail transit provided in this embodiment has a first state and a second state, with the running direction of the train on the unbranched section of the track body 50 as the second direction and the direction perpendicular to the second direction in the horizontal plane as the first direction.

[0044] In the first state, such as Figure 3 As shown, the first swing arm 10 swings to the left, the second swing arm 20 swings to the right, and the third swing arm 30 is parallel to the second direction, thus forming a right guide channel. The side of the third swing arm 30 that abuts against the second swing arm 20 is flush with the side wall of the track, thus ensuring that the guide wheel does not vibrate or impact when passing through, ensuring smoothness; the connection between the first swing arm 10 and the second swing arm 20 is designed with a smooth transition to ensure smooth and stable turning. In this state, the left telescopic push rod extends downward to move the left traveling plate 102 downward, thereby avoiding the traveling plate on the track body 50, while the right traveling plate 103 aligns and splices with the traveling plate on the track body 50, ensuring that the traveling wheel passes smoothly.

[0045] In the second state, such as Figure 7 As shown, the first swing arm 10 swings to the right, the second swing arm 20 is parallel to the second direction, and the third swing arm 30 swings to the left, thus forming a left guide channel. At the same time, the right telescopic push rod extends downward to move the right traveling plate 103 downward. Its working principle is the same as that of the first state, and will not be described again here.

[0046] In this embodiment, to reduce the length of the movable travel plate and improve structural stability, a fixed travel plate 104 is provided in the non-interference section of the first swing arm 10 to ensure that the travel wheels do not become suspended during turning, thus ensuring stable support for the bogie. Figure 10 As shown, the fixed travel plate 104 is spliced ​​with the left travel plate 102 and the right travel plate 103 to allow the travel wheels to pass through. In addition, to ensure a smooth transition, an arc segment is provided at the junction of the fixed travel plate 104 and the swing beam 101 with the track body 50 to ensure a smooth transition and allow the guide wheels and travel wheels to pass smoothly through the turning point.

[0047] The linkage swing arm steering system for monorail transit provided in this embodiment ensures that the bogie passes smoothly and stably during turning by cooperating with the track body 50 through three swing arms. This makes the contact between the guide wheel and the track side wall, as well as between the running wheel and the running plate, smooth without protrusions, depressions, or gaps, thus ensuring a good riding experience, reducing vibration, impact, and wear, and improving the service life of related components.

[0048] In an optional embodiment, to avoid interference between the left traveling plate 102 and the right traveling plate 103 and the track body 50, the left traveling plate 102 and the right traveling plate 103 are respectively hinged to the lower end of the swing beam 101 and can swing in the vertical plane. In the first state, the left traveling plate 102 swings upward to avoid interference with the side wall of the track body 50, while the right traveling plate 103 swings to a horizontal state to allow the traveling wheels to pass. In the second state, the right traveling plate 103 swings upward to avoid interference with the side wall of the track body 50, while the left traveling plate 102 swings to a horizontal state to allow the traveling wheels to pass. Specifically, the first swing arm 10 also includes at least two rotary motors, which are mounted on the swing beam 101 and connected to the left traveling plate 102 and the right traveling plate 103 respectively, for driving the left traveling plate 102 and the right traveling plate 103 to swing. Alternatively, a telescopic rod can be used to drive the left traveling plate 102 and the right traveling plate 103 to swing. That is, one end of the telescopic rod is hinged to the swing beam 101, and the other end is hinged to the left traveling plate 102 or the right traveling plate 103. The telescopic rod can be used to drive the left traveling plate 102 or the right traveling plate 103 to swing by extending and retracting.

[0049] In this embodiment, the driving mechanism 40 includes a first driving component 100 and a second driving component 200, such as... Figure 4 As shown. The first drive assembly 100 includes a first lateral movement member 110, a second lateral movement member 120, a limiting rod 130, a first swing rod 140, a second swing rod 150, a first telescopic rod 160, a first connecting rod 170, and a second connecting rod 180, as shown. Figure 5 As shown. The first lateral moving member 110 is engaged with the first swing arm 10, and the second lateral moving member 120 is engaged with the second swing arm 20 and the third swing arm 30, so as to drive the corresponding swing arms to swing and limit their movement; both the first lateral moving member 110 and the second lateral moving member 120 can move along the first direction to drive the first swing arm 10, the second swing arm 20 and the third swing arm 30 to swing synchronously; the length direction of the limiting rod 130 is parallel to the first direction, and the first lateral moving member 110 is slidably connected to the limiting rod 130, thereby ensuring that the first lateral moving member 110 can move along the limiting rod 130. The length direction of the track is 30; the first swing arm 140 and the second swing arm 150 are hinged to the track body 50. One end of the first swing arm 140 is slidably connected to the first transverse member 110, and the other end is hinged to the first connecting rod 170. The end of the first connecting rod 170 away from the first swing arm 140 is hinged to the first telescopic rod 160; one end of the second swing arm 150 is slidably connected to the second transverse member 120, and the other end is hinged to the second connecting rod 180. The end of the second connecting rod 180 away from the second swing arm 150 is hinged to the first telescopic rod 160.

[0050] That is, the extension and retraction of the first telescopic rod 160 drives the first connecting rod 170 and the second connecting rod 180, causing the first connecting rod 170 to drive the first swing rod 140 to swing, and the second connecting rod 180 to drive the second swing rod 150 to swing. In turn, the first swing rod 140 drives the first lateral moving member 110 to move along the first direction, and the second swing rod 150 drives the second lateral moving member 120 to move along the first direction in the horizontal plane. As a result, the first lateral moving member 110 drives the first swing arm 10 to swing, and the second lateral moving member 120 drives the second swing arm 20 and the third swing arm 30 to swing.

[0051] Specifically, such as Figure 5 , Figure 12 As shown, the first rocker arm 140 is provided with a first elongated hole, and the first transverse member 110 is provided with a first convex shaft 111. The first convex shaft 111 is inserted into the first elongated hole and can slide along the first elongated hole. The first rocker arm 140 swings to make the first convex shaft 111 slide in the first elongated hole, thereby making the first transverse member 110 move in the first direction.

[0052] Similarly, the second rocker arm 150 is provided with a second elongated hole, and the second transverse member 120 is provided with a second convex shaft. The second convex shaft is inserted into the second elongated hole and can slide along the second elongated hole. The second rocker arm 150 swings to make the second convex shaft slide in the second elongated hole, thereby making the second transverse member 120 move in the first direction.

[0053] In this embodiment, the first swing arm 140 and the second swing arm 150 are approximately L-shaped, that is, they are divided into two swing arms, one long and one short. The long swing arm is provided with a first long hole or a second long hole. The connection between the long swing arm and the short swing arm is used to hinge with the track body 50, and the short swing arm is used to hinge with the first connecting rod 170 or the second connecting rod 180.

[0054] In this embodiment, the second drive assembly 200 includes a first auxiliary rocker arm 210, a second auxiliary rocker arm 220, a second telescopic rod 230, a drive connecting rod 240, and a drive shaft 250, as follows: Figure 5 As shown. Specifically, the first transverse member 110 is provided with a sliding groove 112, the length direction of which is perpendicular to the first direction, as shown. Figure 5 , Figure 12As shown; a first auxiliary rocker arm 210 is provided with a first auxiliary cam shaft, which is inserted into the sliding groove 112 and can slide along the sliding groove 112; a first driven gear is provided at the end of the first auxiliary rocker arm 210 away from the first transverse member 110, and the first driven gear is rotatably mounted on the track body 50, that is, the first auxiliary cam shaft and the first driven gear are respectively provided at both ends of the first auxiliary rocker arm 210. One end of the second auxiliary rocker arm 220 is hinged to the second transverse member 120, and is configured to swing in the horizontal plane to drive the second transverse member 120 to move in the horizontal plane; a second driven gear is provided at the end of the second auxiliary rocker arm 220 away from the second transverse member 120, and the second driven gear is rotatably mounted on the track body 50. A drive gear 251 is provided on the drive shaft 250. The drive gear 251 meshes with the first driven gear and the second driven gear and is used to drive the first driven gear and the second driven gear to rotate around their own axis, thereby causing the first auxiliary rocker arm 210 to swing around the axis of the first driven gear and the second auxiliary rocker arm 220 to swing around the axis of the second driven gear.

[0055] Specifically, such as Figure 11 As shown, a connecting rocker arm 252 is also provided on the drive shaft 250. One end of the drive link 240 is hinged to the second telescopic rod 230, and the other end is hinged to the connecting rocker arm 252. The second telescopic rod 230 extends and retracts to drive the drive link 240, which in turn pushes the connecting rocker arm 252, thereby causing the drive gear 251 to rotate around its own axis. In addition, the second rocker arm 150 and the second auxiliary rocker arm 220 are respectively hinged to the second transverse member 120 at two points to form a four-bar linkage, which restricts the movement trajectory of the second transverse member 120, making its movement smooth, and can also restrict the position of the second rocker arm 20 and the third rocker arm 30.

[0056] The working process of the linkage swing arm steering system for monorail transit provided in this embodiment is as follows:

[0057] When switching to the first state, i.e., forming a right guide channel, is required, the first telescopic rod 160 extends, causing the first swing rod 140 to rotate counterclockwise and the second swing rod 150 to rotate clockwise; simultaneously, the second telescopic rod 230 extends, causing the drive gear 251 to rotate counterclockwise, which in turn drives the first driven gear and the second driven gear to rotate clockwise. As the first swing rod 140 and the first auxiliary swing rod 210 rotate, they push the first lateral movement member 110 to move to the left, causing the first swing arm 10 to swing to the left; the second swing rod 150 and the second auxiliary swing rod 220 then drive the second lateral movement member 120 to move to the right, causing the second swing arm 20 and the third swing arm 30 to swing to the right. Finally, the first swing arm 10 and the second swing arm 20 engage, and the third swing arm 30 embeds into the sidewall of the track, forming a right guide channel. Figure 3 , Figure 4 , Figure 5 As shown.

[0058] When it is necessary to switch to the second state, both the first telescopic rod 160 and the second telescopic rod 230 retract, and the rotation directions of the corresponding first swing rod 140, second swing rod 150 and drive gear 251 are reversed, ultimately forming a left guide channel.

[0059] The linkage swing arm steering system for monorail transit provided in this embodiment synchronously drives the first swing arm 10, the second swing arm 20, and the third swing arm 30 to swing through the first drive assembly 100 and the second drive assembly 200, forming a relatively fixed position. This avoids the problems of asynchrony, misalignment, and incomplete swing arm swing that may occur with individual drives, ensuring the smoothness of the guide channel. Furthermore, the first swing rod 140 and the first auxiliary swing rod 210 swing in opposite directions and are driven independently, which can eliminate the gap in the motion mechanism and ensure the position locking of the first lateral movement member 110, preventing the first swing arm 10 from swaying. The second swing rod 150 and the second auxiliary swing rod 220 swing together, using two independent drives, avoiding the possible wobbling of the second lateral movement member 120 caused by the gap in the mechanism, and preventing the second swing arm 20 and the third swing arm 30 from swaying.

[0060] Meanwhile, the combination of three swing arms avoids the protrusions on the track sidewalls caused by the switch rail structure, allowing the guide wheels to pass smoothly and preventing vibration. Furthermore, the lifting and lowering of the left travel plate 102 and right travel plate 103 prevents interference between the first swing arm 10 and the travel plate of the track body 50. Combined with the fixed travel plate 104, it prevents the travel wheels from being suspended in the air during turns, ensuring smooth passage and avoiding uneven stress on the bogie caused by suspended travel wheels. This prevents bogie deformation and excessive compression of the guide wheels, reducing the lifespan of the bogie and guide wheels, further reducing vibration, improving ride comfort, and minimizing wear and impact, thus extending service life.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A linkage swing arm steering system for monorail rail transportation, characterized in that, The first swing arm (10), the second swing arm (20) and the third swing arm (30) can swing in a horizontal plane to butt joint the first swing arm (10) with the second swing arm (20) or the third swing arm (30), so that the first swing arm (10) and the second swing arm (20) form a right guide channel or the first swing arm (10) and the third swing arm (30) form a left guide channel; A guide wheel abuts against and rolls along the right guide channel or abuts against and rolls along the left guide channel; The first swing arm (10) comprises a swing beam (101), a left walking plate (102) and a right walking plate (103); the swing beam (101) can swing in a horizontal plane, the left walking plate (102) and the right walking plate (103) are connected to the lower end of the swing beam (101) and are in sliding connection with the swing beam (101); the left walking plate (102) and the right walking plate (103) can move in a vertical direction; A second direction is the running direction of the train on the non-forked section of the track body (50), and a first direction is the direction perpendicular to the second direction in the horizontal plane; In a first state, the first swing arm (10) swings to the left, the second swing arm (20) swings to the right, and the third swing arm (30) is parallel to the second direction, so as to form the right guide channel; In a second state, the first swing arm (10) swings to the right, the second swing arm (20) is parallel to the second direction, and the third swing arm (30) swings to the left, so as to form the left guide channel; The drive mechanism (40) comprises a first drive assembly (100), the first drive assembly (100) comprises a first transverse moving piece (110) and a second transverse moving piece (120), the first transverse moving piece (110) is in clamping connection with the first swing arm (10), and the second transverse moving piece (120) is in clamping connection with the second swing arm (20) and the third swing arm (30); The first transverse moving piece (110) and the second transverse moving piece (120) can move in the first direction to drive the first swing arm (10), the second swing arm (20) and the third swing arm (30) to swing synchronously.

2. The linked swing arm steering system for monorail rail transit according to claim 1, characterized in that, The first swing arm (10) further comprises a left telescopic push rod and a right telescopic push rod; One end of the left telescopic push rod is connected with the swing beam (101), and the other end is connected with the left walking plate (102), so as to drive the left walking plate (102) to move in a vertical direction; One end of the right telescopic push rod is connected with the swing beam (101), and the other end is connected with the right walking plate (103), so as to drive the right walking plate (103) to move in a vertical direction.

3. The linked swing arm steering system for monorail rail transit according to claim 1, characterized in that, The first drive assembly (100) further comprises a limiting rod (130), and the length direction of the limiting rod (130) is parallel to the first direction. The first horizontal moving piece (110) is in sliding connection with the limiting rod (130) and can move along the length direction of the limiting rod (130).

4. The linked swing arm steering system for monorail rail transit according to claim 3, characterized in that, The first driving assembly (100) further comprises a first swing rod (140), the first swing rod (140) is provided with a first long hole, the first horizontal moving piece (110) is provided with a first convex shaft (111), the first convex shaft (111) is inserted into the first long hole and can slide along the first long hole. The first swing rod (140) swings to drive the first horizontal moving piece (110) to move in the first direction.

5. The linked swing arm steering system for monorail rail transit according to claim 4, characterized in that, The first driving assembly (100) further comprises a second swing rod (150), the second swing rod (150) is provided with a second long hole, the second horizontal moving piece (120) is provided with a second convex shaft, the second convex shaft is inserted into the second long hole and can slide along the second long hole. The second swing rod (150) swings to drive the second horizontal moving piece (120) to move in the first direction.

6. The linked swing arm steering system for monorail rail transit according to claim 5, wherein, The first driving assembly (100) further comprises a first telescopic rod (160), a first connecting rod (170) and a second connecting rod (180). One end of the first connecting rod (170) is hinged to the first swing rod (140), and the other end is hinged to the first telescopic rod (160); one end of the second connecting rod (180) is hinged to the second swing rod (150), and the other end is hinged to the first telescopic rod (160). The first telescopic rod (160) telescopes to drive the first connecting rod (170) and the second connecting rod (180), so that the first connecting rod (170) drives the first swing rod (140) to swing, and the second connecting rod (180) drives the second swing rod (150) to swing.

7. The linked swing arm steering system for monorail rail transit according to claim 6, characterized in that, The driving mechanism (40) further comprises a second driving assembly (200), the second driving assembly (200) comprises a first secondary swing rod (210) and a second secondary swing rod (220); The first horizontal moving piece (110) is provided with a sliding groove (112), the length direction of the sliding groove (112) is perpendicular to the first direction; the first secondary swing rod (210) is provided with a first secondary convex shaft, the first secondary convex shaft is inserted into the sliding groove (112) and can slide along the sliding groove (112); One end of the second secondary swing rod (220) is hinged to the second horizontal moving piece (120) and is configured to swing in the horizontal plane to drive the second horizontal moving piece (120) to move in the horizontal plane.

8. The linked swing arm steering system for monorail rail transit according to claim 7, characterized in that, The second driving assembly (200) further comprises a driving shaft (250); The driving shaft (250) is provided with a driving gear (251), one end of the first secondary swing rod (210) away from the first horizontal moving piece (110) is provided with a first driven gear, one end of the second secondary swing rod (220) away from the second horizontal moving piece (120) is provided with a second driven gear; The driving shaft (250) swings around its own axis, and then the driving gear (251) rotates to drive the first driven gear and the second driven gear to rotate around their own axes respectively.

9. The linked swing arm steering system for monorail rail transit according to claim 8, wherein, The second driving assembly (200) further comprises a second telescopic rod (230) and a driving link (240), one end of the driving link (240) being hinged to the second telescopic rod (230) and the other end being hinged to the driving shaft (250); The second telescopic rod (230) is telescoped to drive the driving link (240), so that the driving link (240) drives the driving shaft (250) to swing around its own axis.

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