Multi-mode driven straddle type monorail traffic system

Abstract

The invention relates to the technical field of straddle type rail traffic, and provides a multi-mode driven straddle type monorail traffic system which comprises a walking part and a rail beam and further comprises a rubber wheel rail and a toothed rail which are arranged on the side face of the rail beam and staggered in position in the height direction of the rail beam. The rubber wheel rails and the toothed rails are alternately distributed in the length direction of the track beam, and overlapping sections are arranged between the rubber wheel rails and the toothed rails. The rubber wheel and the meshing gear are both rotationally connected with the walking part, the position of the rubber wheel is matched with the position of the rubber wheel rail, and the rubber wheel can roll on the rubber wheel rail and extrude the rubber wheel rail mutually, so that traction force is generated; the position of the meshing gear is matched with the rack rail, and the meshing gear can be meshed with the rack rail; the rubber wheel and the meshing gear are both connected with a driving device. The technical problem that an existing straddle type traffic system provides traction force and braking force by means of friction force between rubber tires and a track beam, and the gradeability is limited by the friction limit can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of straddle-type rail transportation, and in particular to a multi-mode driven straddle-type monorail transportation system. Background Art

[0002] The straddle-type monorail belongs to the rubber-tyred rail transit system in urban rail transit, which includes a track beam, a running gear riding on the track beam, and a car body. Rubber tires are installed on the running gear, and traction and braking force are provided by the friction between the rubber tires and the concrete track beam. The straddle-type monorail has the advantages of narrow track beam, small bogie wheelbase, small turning radius, large friction of the rubber wheel system, greater climbing ability than ordinary steel wheel-rail system, high maintainability, strong comfort and low noise. Therefore, the transportation system has flexible line layout and is particularly suitable for mountainous cities, cities with complex terrain, and urban and suburban areas with high building concentration, and it also has good adaptability in tourist attractions.

[0003] However, as mountain cities and tourist attractions continue to develop towards areas with complex terrain, the demand for the climbing ability of vehicles is also increasing. For the existing straddle-type monorail trains that rely on the friction between rubber tires and track beams to climb, due to the friction limit between the rubber wheels and the track beams, their maximum climbing ability can only reach a slope of 100‰, which is difficult to meet the growing demand for climbing ability. When the slope increases, in order to enable the train to climb a larger slope, it is necessary to increase the traction between the rubber wheels and the track beams. When the traction is greater than the friction between the rubber wheels and the track beams, slippage will occur, aggravating tire wear and even causing safety accidents. Therefore, it is urgent to develop a new type of straddle-type rail transit system that can adapt to slopes of 100‰ and above to improve its adaptability to cities with complex terrain and mountain tourist attractions. Summary of the invention

[0004] The purpose of the present invention is to overcome the technical problem that the existing straddle-type transportation system relies on the friction between the rubber tire and the track beam to provide traction and braking force, and its climbing ability is limited by the friction limit and cannot be applied to large slope terrain, and to provide a multi-mode driven straddle-type monorail transportation system.

[0005] In a first aspect, the present invention provides a multi-mode driven straddle-type monorail transportation system, comprising a running part and a track beam, wherein the running part straddles the track beam, and further comprising:

[0006] The rubber-wheel rail and the rack rail are both arranged on the side of the track beam, and the positions of the rubber-wheel rail and the rack rail are staggered along the height direction of the track beam; the rubber-wheel rail and the rack rail are alternately distributed along the length direction of the track beam, and an overlapping section is arranged between the rubber-wheel rail and the rack rail along the length direction of the track beam, and the rubber-wheel rail and the rack rail both extend into the overlapping section;

[0007] The rubber wheel and the meshing gear are both rotatably connected with the running gear, the position of the rubber wheel matches the position of the rubber wheel rail, the radius of the rubber wheel is larger than the distance between the rubber wheel rail and the rubber wheel axis, the rubber wheel can roll on the rubber wheel rail, and the rubber wheel and the rubber wheel rail can squeeze each other to generate traction; the position of the meshing gear matches the rack rail, and the meshing gear can mesh with the rack rail; the rubber wheel and the meshing gear are both connected with the driving device.

[0008] This scheme will continuously and alternately set rubber-wheel rails and toothed rails on the side of the track beam, and correspondingly set rubber wheels and meshing gears on the running gear, so that this scheme has two different working modes; when the running gear is located in the area where the rubber-wheel rail is located, the rubber wheel can contact the rubber-wheel rail, thereby providing traction and braking force through the friction between the rubber wheel and the rubber-wheel rail, and the friction between the rubber wheel and the rubber-wheel rail can be increased by adjusting the height of the rubber-wheel rail; in this state, the working mode of this scheme is the same as that of the existing straddle-type transportation system using rubber tires, so it also has the advantages of the existing straddle-type transportation system such as narrow track beam, small bogie wheelbase, small turning radius, large friction of the rubber-wheel system, greater climbing ability than ordinary steel wheel-rail system, high maintainability, strong comfort, low noise, etc.

[0009] When the running gear is located in the area where the rack is located, the meshing gear can mesh with the rack, thereby providing traction and braking force through the support reaction force between the meshing gear and the rack; wherein, the magnitude of the support reaction force between the meshing gear and the rack depends on the structural strength of the meshing gear and the rack and the maximum torque that the drive device can provide, rather than the friction limit between the meshing gear and the rack. Therefore, when the present scheme runs in the area where the rack is located, the running gear can generate traction and braking force that is far greater than that generated by the rubber tire, thereby enabling the present scheme to have a much stronger climbing ability than the rubber tire in the prior art, and avoid the increased wear of the rubber tire when going uphill, thereby extending the service life of the rubber tire.

[0010] And because there is an overlapping section between the rubber-wheel track and the rack track, when the running gear switches between the rubber-wheel track and the rack track, this solution can avoid the situation where one of the rubber wheel and the meshing gear has lost contact with the track while the other has not yet contacted the track, causing the running gear to lose power and thus endangering the smoothness and stability of the running of the running gear. The running gear of this solution can always maintain power and run smoothly.

[0011] In summary, the present scheme has two working modes at the same time, and the distribution of the rubber-wheeled rail and the rack rail is allocated according to the actual terrain conditions. For example, rack rails are set in areas with larger slopes, and rubber-wheeled rails are set in areas with gentle slopes. This allows the present scheme to fully utilize the advantages of the straddle-type transportation system in gentle areas, and to smoothly climb over areas with large slopes, thus having good terrain adaptability. Moreover, since the two working modes are carried out alternately, compared with setting up two different running systems of rubber wheels and gears at the same time, the present scheme can also suppress the wear of the rubber-wheeled rails, rack rails, rubber wheels and meshing gears, thereby obtaining a longer service life, while also avoiding the complex synchronization mechanism required for the two different working modes to work simultaneously.

[0012] Preferably, the rubber wheels and the meshing gears are arranged at intervals along the length direction of the track beam.

[0013] This proposal recommends a distribution method for rubber wheels and meshing gears, which can make the rubber wheels, meshing gears and their auxiliary structures, such as shafts, transmission structures, and reduction structures, mainly occupy the space along the length direction of the track beam, while reducing their space occupancy along the height direction. It is more suitable for a running gear with ample longitudinal space but insufficient vertical space, and it is also beneficial to lower the center of gravity of the running gear and reduce the risk of overturning of the running gear.

[0014] Preferably, the distance between the axis of the rubber wheel and the axis of the meshing gear is less than or equal to the length of the overlapping section.

[0015] This solution can ensure that no matter whether the rubber wheel is in front or the meshing gear is in front, when the running gear is switched from the rubber-wheel track to the rack track or from the rack track to the rubber-wheel track, at least one of the rubber wheel and the meshing gear is in contact with the track beam, thereby ensuring that the running gear can always maintain power and run smoothly.

[0016] Preferably, the number of the running parts is greater than one, and the arrangement order of the rubber wheels and the meshing gears on each running part is the same.

[0017] In existing trains with multiple running gears, the directions of two adjacent running gears are set in multiple opposite directions, so that when unidirectional wear occurs to components in the running gear, the two adjacent running gears are interchanged to replace the worn side, thereby ensuring uniform wear of various components in the running gear; however, the direction of the running gear in this scheme is related to the motion response characteristics when this scheme switches the working mode. Therefore, this scheme recommends that the rubber wheels and meshing gears on each running gear have the same direction, thereby ensuring the smooth operation of this scheme.

[0018] Preferably, the height of the rack rail is higher than the height of the rubber wheel rail.

[0019] Because the interaction between the meshing gear and the rack will generate a strong support reaction force radially outward along the meshing gear, if the meshing gear is set at the lower part of the running gear, the torque generated by the support reaction force will make the corresponding area of ​​the running gear tend to move away from the track beam, which is contrary to the ideal force characteristics of the running gear; therefore, this scheme recommends setting the rack at a high place to reverse the torque generated by the support reaction force, so that the corresponding area of ​​the running gear tends to approach the track beam, thereby making the running gear have better force characteristics and can run more smoothly and reliably.

[0020] Preferably, one end of the rack is fixedly connected to the track beam, and the other end of the rack is movably connected to the track beam, and the movable connection includes at least one degree of freedom of movement in the horizontal direction.

[0021] This solution enables one end of the rack to have at least one degree of freedom of movement, which is conducive to releasing the deformation and temperature stress of the rack caused by thermal expansion and contraction.

[0022] Preferably, an elastic element is further connected between the end of the rack rail having the freedom of movement and the track beam.

[0023] The elastic element of the present invention can absorb the vibration and impact between the track beam and the rack, and release the displacement between the track beam and the rack due to thermal expansion and contraction.

[0024] Preferably, a transition section is provided at one end of the rubber wheel track close to the rack track, and the distance between the surface of the transition section and the axis of the rubber wheel gradually decreases in the direction close to the rack track.

[0025] This solution can make the contact or separation action between the rubber wheel and the rubber wheel rail smoother, reduce the impact on the rubber wheel caused by the sudden change of the thickness of the rubber wheel rail, and thus improve the stability and safety of the running of the running gear.

[0026] Preferably, the rubber-wheeled rails and the rack rails are symmetrically distributed on the left and right sides of the track beam.

[0027] This solution can make the force on the running gear symmetrical on the left and right, so that the running gear can run more smoothly and reduce the risk of overturning.

[0028] Preferably, the slope of the rack track is greater than or equal to 100‰ and less than or equal to 480‰.

[0029] This solution recommends the specific slope range where the rack rail needs to be set.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The present invention provides a multi-mode driven straddle-type monorail transportation system. By continuously and alternately arranging rubber-wheeled rails and rack rails on the side of a track beam, and correspondingly arranging rubber wheels and meshing gears on a running part, the present invention has two different working modes. By allocating the distribution mode of the rubber-wheeled rails and rack rails according to actual terrain conditions, the present invention can fully exert the advantages of the straddle-type transportation system in a flat area, and can smoothly climb over a steep area, and has good terrain adaptability. Moreover, since the two working modes are carried out alternately, the present invention can adapt to a larger slope, and can also suppress the wear of the rubber-wheeled rails, rack rails, rubber wheels and meshing gears, thereby obtaining a longer service life, and can also avoid the complex synchronization mechanism required for the two different working modes to work simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a side view structural schematic diagram of a multi-mode driven straddle-type monorail transportation system of the present invention;

[0033] Figure 2 The side view of the running gear of a multi-mode driven straddle-type monorail transportation system of the present invention is a schematic diagram Figure 1 ;

[0034] Figure 3 The side view of the running gear of a multi-mode driven straddle-type monorail transportation system of the present invention is a schematic diagram Figure 2 ;

[0035] Figure 4 It is a front view structural schematic diagram of a running gear of a multi-mode driven straddle-type monorail transportation system of the present invention;

[0036] Figure 5 It is a side structural schematic diagram of a track beam of a multi-mode driven straddle-type monorail transportation system of the present invention;

[0037] Figure 6 It is a schematic diagram of a top view of the structure of a rubber-wheeled track of a multi-mode driven straddle-type monorail transportation system of the present invention;

[0038] Figure 7 This is a half-section schematic diagram of the front view structure of a track beam of a multi-mode driven straddle-type monorail transportation system of the present invention. Figure 1 ;

[0039] Figure 8 This is a half-section schematic diagram of the front view structure of a track beam of a multi-mode driven straddle-type monorail transportation system of the present invention. Figure 2 ;

[0040] Fig. 9 It is a schematic diagram of a top view of a rack rail of a multi-mode driven straddle-type monorail transportation system of the present invention;

[0041] Fig.10 yes Fig. 9 A schematic diagram of the local side view of the structure at the middle arrow G;

[0042] Fig.11 yes Fig. 9 A schematic diagram of a partial side view of the structure half-section at the middle arrow F;

[0043] Icon: 1-car body;

[0044] 2-running gear; 201-traction rod; 202-air spring; 203-shock absorber; 204-load-bearing wheel; 205-meshing gear; 206-guide wheel; 207-transmission mechanism; 208-driving device; 209-brake disc; 210-rubber wheel;

[0045] 3-track beam; 301-beam body; 302-rubber wheel rail; 3021-running section; 3022-transition section; 303-tooth rail; 304-fixing bolt; 305-clamping bolt; 306-card; 307-elastic element; 308-limiting hole. DETAILED DESCRIPTION

[0046] The present invention is further described in detail below in conjunction with test examples and specific implementation methods. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0047] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating the orientation or position relationship such as "up", "down", "left", "right", "center", "inside", "outside", etc. are all expressions based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the invented product / equipment / device is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the present invention or simplifying the description in the specific embodiments, so as to facilitate the technicians to quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.

[0048] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present invention.

[0049] In addition, the expressions “first”, “second”, “third”, etc. that appear in the terms are merely descriptions used to distinguish the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0050] In addition, in the description of the embodiments of the present invention, "several", "plurality" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0051] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0052] Example 1

[0053] like Figures 1 to 11As shown, a multi-mode driven straddle-type monorail transportation system comprises a running part 2 and a track beam 3, the running part 2 straddles the track beam 3, and the side wall of the track beam 3 is provided with a rubber wheel rail 302 and a rack rail 303, the rubber wheel rail 302 and the rack rail 303 are staggered along the height direction of the track beam 3; the rubber wheel rail 302 and the rack rail 303 are alternately distributed along the length direction of the track beam 3, and a rubber wheel rail 302 and a rack rail 303 are provided between the rubber wheel rail 302 and the rack rail 303 along the length direction of the track beam 3. The overlapping section, the rubber wheel track 302 and the toothed track 303 both extend into the overlapping section; the running part 2 is rotatably connected with a rubber wheel 210 and a meshing gear 205, the position of the rubber wheel 210 matches the position of the rubber wheel track 302, and the rubber wheel 210 can roll on the rubber wheel track 302; the position of the meshing gear 205 matches the toothed track 303, and the meshing gear 205 can mesh with the toothed track 303; the rubber wheel 210 and the meshing gear 205 are both connected with a driving device 208.

[0054] In the above scheme, the length, number and specific position of the rubber-wheel rail 302 and the rack rail 303 are determined according to actual needs, so that the rubber-wheel rail 302 is set in an area with a smaller slope, for example, a slope less than or equal to 100‰, and the rack rail 303 is set in an area with a slope greater than or equal to 100‰ and less than or equal to 480‰; and it is necessary to ensure that there is an overlapping section at the intersection of the rubber-wheel rail 302 and the rack rail 303, and the specific length of the overlapping section is determined according to the specific structure of the running part 2.

[0055] In an optional embodiment, if Figures 5 to 8 As shown, the rubber wheel rail 302 can be a strip-shaped protrusion structure arranged along the length direction of the track beam 3, so that it can abut against the rubber wheel 210 to generate positive pressure and then generate friction. The strip-shaped protrusion structure can be an independent component or a part of the track beam 3; correspondingly, the material of the strip-shaped protrusion structure includes metal and concrete.

[0056] In an optional embodiment, if Figure 5 As shown, the rubber-wheeled track 302 includes a running section 3021 and a transition section 3022. The running section 3021 is used to keep a distance between the surface in contact with the rubber wheel 210 and the axis of the rubber wheel 210, or the thickness of the transition section 3022 protruding relative to the track beam 3 is kept constant; the transition section 3022 is arranged at the end of the running section 3021 close to the rack 303, and the distance between the surface in contact with the rubber wheel 210 and the axis of the rubber wheel 210 gradually decreases in the direction close to the rack 303, that is, from Figure 6 The right side of the image gradually decreases toward the left side; the reduction method can be linear or curved, and the thickness at the end can be zero or non-zero.

[0057] In an optional embodiment, if Figure 7 and Fig. 9As shown, the tooth surface of the rack 303 faces the side of the track beam 3, that is, the rotation axis of the meshing gear 205 is along the plumb direction, so that the rotating shaft of the meshing gear 205, the rotating shaft of the rubber wheel rail 302 and the rotating shaft of the guide wheel 206 mentioned later are all parallel to each other, thereby facilitating their arrangement on the running part 2.

[0058] In an optional embodiment, one end of the rack 303 is fixedly connected to the track beam 3, and the other end of the rack 303 is movably connected to the track beam 3, and the movably connected connection includes at least one degree of freedom of movement in the horizontal direction. Figures 7 to 11 As shown, a clamping plate 306 is arranged on the side of the beam body 301 of the track beam 3, and the cross-section of the clamping plate 306 is L-shaped. The clamping plate 306 is fixed to the track beam 3 by fixing bolts 304, and clamping plates 306 are arranged on the upper and lower sides of the rack 303, and limiting holes 308 are arranged at the corresponding positions of the rack 303; by connecting and tightening the clamping plates 306 on the upper and lower sides respectively through clamping bolts 305 passing through the limiting holes 308, the rack 303 can be clamped by the clamping plate 306, and the connection relationship between the corresponding position of the rack 303 and the track beam 3 can be changed by changing the matching relationship between the limiting holes 308 and the clamping bolts 305; for example, by making the limiting holes 308 and the clamping bolts 305 transitionally matched or interference matched, the corresponding end of the rack 303 and the track beam 3 can be relatively fixed; by making the limiting holes 308 and the clamping bolts 305 clearance matched, a certain degree of freedom can be given between the corresponding end of the rack 303 and the track beam 3. The specific shape of the limiting hole 308 includes but is not limited to a circle, a polygon, and a racetrack hole.

[0059] In an optional embodiment, an elastic element 307 is further connected between the end of the rack 303 with the degree of freedom of movement and the track beam 3, and one end of the elastic element 307 abuts against the rack 303, and the other end abuts against the track beam 3. The abutment between the elastic element 307 and the rack 303 or the track beam 3 can be direct or indirect; for example, for the above-mentioned method of fixing the rack 303 by the clamping plate 306, a rubber pad can be provided between the clamping plate 306 and the fixed rack 303 as the elastic element 307.

[0060] In an optional embodiment, if Figures 7 and 8 As shown, the height of the rack rail 303 is higher than the height of the rubber wheel rail 302. Correspondingly, the height of the meshing gear 205 on the running part 2 is higher than the height of the rubber wheel 210.

[0061] In an optional embodiment, the rubber wheel 210 and the meshing gear 205 are arranged at intervals along the length direction of the track beam 3. Figures 1 to 3 As shown, the rubber wheel 210 and the meshing gear 205 are respectively arranged on both sides of the running part 2 along the length direction of the track beam 3.

[0062] In an optional embodiment, if Figure 4 As shown, the rubber wheel rail 302 and the toothed rail 303 are symmetrically distributed on the left and right sides of the track beam 3. Correspondingly, the rubber wheel 210 and the meshing gear 205 in the running part 2 can also be symmetrically distributed on the left and right sides of the track beam 3.

[0063] In an optional embodiment, the distance between the axis of the rubber wheel 210 and the axis of the meshing gear 205 is less than or equal to the length of the overlap section, that is, Figure 5 X in is greater than Figure 3 It should be noted that the overlap section refers to the section where the rubber wheel 210 can contact the rubber wheel rail 302, and at the same time the meshing gear 205 can also contact the rack rail 303, for example Figure 5 As shown, the length of the overlapping section should include the overlapping portion of the running section 3021 and the rack rail 303 , but does not include the overlapping portion of the transition section 3022 and the rack rail 303 .

[0064] In an optional embodiment, a separate driving device 208 may be provided for the rubber wheel 210 and the meshing gear 205, or one driving device 208 may drive multiple rubber wheels 210 and / or meshing gears 205. Figure 2 As shown, the driving device 208 includes a traction motor arranged along the length direction of the track beam 3, and the traction motor is connected to the corresponding side rubber wheel 210 and the meshing gear 205 through the transmission mechanism 207 on both sides thereof, such as gears and synchronous belts, so that the rubber wheel 210 and the meshing gear 205 can be controlled by one traction motor, which can save the cost of separately setting motors on the rubber wheel 210 and the meshing gear 205 or the load-bearing wheel 204 and the meshing gear 205.

[0065] In an optional embodiment, a clutch may be provided between the driving device 208 and the rubber wheel 210 and / or the meshing gear 205 , so as to freely cut off or connect the power transmission from the driving device 208 to the rubber wheel 210 and / or the meshing gear 205 .

[0066] In an optional embodiment, a brake disc 209 may be provided between the driving device 208 and the rubber wheel 210 and / or the meshing gear 205, so as to quickly stop the rolling action of the rubber wheel 210 and / or the meshing gear 205 for parking or emergency braking.

[0067] In an optional embodiment, the number of the running parts 2 is greater than one, and the rubber wheels 210 and the meshing gears 205 on each running part 2 are arranged in the same order. Figure 1 As shown, on all the running parts 2, the rubber wheel 210 is located at the upper side of the running part 2 in the figure, and the meshing gear 205 is located at the lower side of the running part 2 in the figure.

[0068] In an optional embodiment, if Figures 2 to 4As shown, the running gear 2 is also rotatably connected to a load-bearing wheel 204, which can roll on the upper surface of the track beam 3 to bear the weight of the running gear 2 and the vehicle body 1 above it, so that the rubber wheel 210 and the meshing gear 205 only need to be responsible for traction and braking, thereby reducing the difficulty of designing and manufacturing the rubber wheel 210 and the meshing gear 205.

[0069] In an optional embodiment, if Figures 2 to 4 As shown, the running part 2 is also rotatably connected with a guide wheel 206, and the guide wheel 206 can roll on the side of the track beam 3, thereby providing a lateral force for the running part 2 and helping the running part 2 to always follow the track of the track beam 3.

[0070] In an optional embodiment, a vehicle body 1 is connected above the running gear 2, and the vehicle body 1 includes but is not limited to a truck body 1 and a bus body 1; a traction rod 201, a shock absorber 203 and an air spring 202 are arranged between the vehicle body 1 and the running gear 2, so as to ensure that the traction and braking force generated by the running gear 2 can be smoothly transmitted to the vehicle body 1.

[0071] In an optional embodiment, the specific structural form of the beam body 301 of the track beam 3 includes but is not limited to: Figure 7 The steel structure shown in the figure, and Figure 8 The reinforced concrete structure shown.

[0072] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-mode driven straddle-type monorail transportation system, comprising a running part (2) and a track beam (3), wherein the running part (2) straddles the track beam (3), and is characterized in that: Also includes: A rubber wheel rail (302) and a toothed track (303), wherein the rubber wheel rail (302) and the toothed track (303) are both arranged on the side of the track beam (3), and the rubber wheel rail (302) and the toothed track (303) are staggered in the height direction of the track beam (3); the rubber wheel rail (302) and the toothed track (303) are alternately distributed along the length direction of the track beam (3), and an overlapping section is arranged between the rubber wheel rail (302) and the toothed track (303) along the length direction of the track beam (3), and the rubber wheel rail (302) and the toothed track (303) both extend into the overlapping section; A rubber wheel (210) and a meshing gear (205), wherein the rubber wheel (210) and the meshing gear (205) are both rotatably connected to the running part (2), the position of the rubber wheel (210) matches the position of the rubber wheel track (302), the radius of the rubber wheel (210) is greater than the distance between the rubber wheel track (302) and the axis of the rubber wheel (210), the rubber wheel (210) can roll on the rubber wheel track (302), and the rubber wheel (210) and the rubber wheel track (302) can squeeze each other to generate traction; the position of the meshing gear (205) matches the rack track (303), and the meshing gear (205) can mesh with the rack track (303); the rubber wheel (210) and the meshing gear (205) are both connected to a driving device (208).

2. A multi-mode driven straddle-type monorail transportation system according to claim 1, characterized in that: The rubber wheel (210) and the meshing gear (205) are arranged at intervals along the length direction of the track beam (3).

3. A multi-mode driven straddle-type monorail transportation system according to claim 2, characterized in that: The distance between the axis of the rubber wheel (210) and the axis of the meshing gear (205) is less than or equal to the length of the overlapping section.

4. The multi-mode driven straddle-type monorail transportation system according to claim 2, characterized in that: The number of the running parts (2) is greater than one, and the rubber wheels (210) and the meshing gears (205) on each of the running parts (2) are arranged in the same order.

5. The multi-mode driven straddle-type monorail transportation system according to claim 1, characterized in that: The height of the rack rail (303) is higher than the height of the rubber wheel rail (302).

6. A multi-mode driven straddle-type monorail transportation system according to any one of claims 1 to 5, characterized in that: One end of the rack (303) is fixedly connected to the track beam (3), and the other end of the rack (303) is elastically connected to the track beam (3), and the movable connection includes at least one degree of freedom of movement in a horizontal direction.

7. The multi-mode driven straddle-type monorail transportation system according to claim 6, characterized in that: An elastic element (307) is also connected between one end of the rack rail (303) having the degree of freedom of movement and the track beam (3).

8. A multi-mode driven straddle-type monorail transportation system according to any one of claims 1 to 5, characterized in that: A transition section (3022) is provided at one end of the rubber wheel track (302) close to the rack track (303), and the distance between the surface of the transition section (3022) and the axis of the rubber wheel (210) gradually decreases in a direction close to the rack track (303).

9. A multi-mode driven straddle-type monorail transportation system according to any one of claims 1 to 5, characterized in that: The rubber wheel rail (302) and the toothed rail (303) are symmetrically distributed on the left and right sides of the track beam (3).

10. A multi-mode driven straddle-type monorail transportation system according to any one of claims 1 to 5, characterized in that: The slope of the rack rail (303) is greater than or equal to 100‰ and less than or equal to 480‰.

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