A towable loading platform

Abstract

The present invention discloses a towable carrying platform, which relates to the technical field of natural disaster emergency transport guarantee equipment, comprising: a front self-propelled platform, a cargo platform, a rear self-propelled platform and a driving wheel group; the two ends of the cargo platform are respectively connected to the front self-propelled platform and the rear self-propelled platform, and the bottoms of the front self-propelled platform and the rear self-propelled platform are both equipped with driving wheel groups; wherein, the cargo platform is used for carrying goods; the towable carrying platform can adapt to a wider range of road transport conditions with a higher throughput capacity, reduce the workload of road repair and construction, and improve the level of natural disaster emergency transport guarantee.

Description

Technical Field

[0001] The present invention relates to the technical field of natural disaster emergency transport support equipment, and in particular to a towable loading platform. Background Art

[0002] To rapidly initiate rescue operations during a disaster, appropriate equipment and supplies must be delivered to the site as quickly as possible. Natural disasters such as landslides and landslides can damage existing roads, bridges, and culverts, resulting in poor road conditions for transporting emergency relief supplies. This sometimes necessitates the use of unpaved roads or the construction of temporary roads. Conventional trailer-trailer transport vehicles struggle to provide emergency transportation services under these conditions, particularly in areas with poor road conditions and height restrictions on bridges and culverts.

[0003] Existing trailer-trailer vehicles lack adjustable loading platforms, making them unable to simultaneously meet height restrictions for bridges and culverts and meet steep slope requirements. They also have limited gradeability and poor adaptability to road conditions. To avoid height restrictions and unpaved roads, detours are often necessary, impacting transport efficiency. When encountering complex sections, such as sharp bends, steep slopes, and unpaved roads, road infrastructure must be repaired or renovated, and temporary roads must be constructed, resulting in significant time-consuming transport.

[0004] In summary, this mode of transportation is no longer suitable for the development needs of modern disaster relief transportation security.

[0005] Therefore, a new towable loading platform is needed to solve the above technical problems. Summary of the Invention

[0006] In view of this, the present invention provides a towable loading platform that can adapt to a wider range of road transportation conditions with a higher throughput capacity, reduce the workload of road repair and construction, and improve the level of emergency transportation support in natural disasters.

[0007] The technical solution of the present invention is: a towable carrying platform, comprising: a front self-propelled platform, a cargo platform, a rear self-propelled platform and a driving wheel set; the two ends of the cargo platform are respectively connected to the front self-propelled platform and the rear self-propelled platform, and the bottom of the front self-propelled platform and the rear self-propelled platform are both equipped with driving wheel sets; wherein, the cargo platform is used for carrying cargo.

[0008] Preferably, the front self-propelled platform includes: a telescopic gooseneck, a front platform structure, a power pump station I, a turntable I and a slewing support I; the telescopic gooseneck is installed in a slide provided on the upper surface of the front platform structure, and slides with the front platform structure. When the telescopic gooseneck slides to a preset position, the front platform structure limits it; the power pump station I is installed at the front end of the telescopic gooseneck and is arranged above the traction pin; the turntable I is installed at the middle and rear end of the telescopic gooseneck through the slewing support I, so that after the telescopic gooseneck is retracted, it is located in the middle of the front platform structure; wherein, the traction pin is arranged at the front end end of the telescopic gooseneck, which is used to connect the saddle of the tractor to the telescopic gooseneck to achieve traction of the front self-propelled platform.

[0009] Preferably, the rear self-propelled platform includes: a rear platform structure, a turntable II, a slewing bearing II and a power pump station II; the slewing bearing II is installed in the middle of the rear platform structure, and the turntable II is installed on the slewing bearing II; the power pump station II is arranged at the rear of the rear platform structure.

[0010] Preferably, the cargo platform includes: a bearing platform, a lifting cylinder, a swing frame and a swing cylinder; the lifting cylinder, the swing frame and the swing cylinder are installed at the front and rear of the bearing platform; the cylinder body end of the lifting cylinder is rotatably connected to the bearing platform, the piston end is rotatably connected to one end of the swing frame, and the other end of the swing frame is rotatably connected to the turntable I of the front self-propelled platform or the turntable II of the rear self-propelled platform, the cylinder body end of the swing cylinder is rotatably connected to the middle part of the swing frame, and the piston end is rotatably connected to the turntable I of the front self-propelled platform or the turntable II of the rear self-propelled platform.

[0011] Preferably, a gooseneck and a transition springboard are further provided at the rear of the load-bearing platform, and the two can be switched by a latch. When the gooseneck and the load-bearing platform are connected by the latch, the gooseneck connects the rear self-propelled platform to the rear of the load-bearing platform; when the gooseneck is separated from the load-bearing platform, the transition springboard is connected to the rear of the load-bearing platform by the latch, for loading and unloading of goods and passage of personnel.

[0012] Preferably, six sets of driving wheel groups are respectively provided under the front platform structure and the rear platform structure, and are arranged symmetrically in groups of two and evenly front and back.

[0013] Preferably, the driving wheel assembly comprises: a double swing arm suspension, a suspension cylinder, a tire assembly, an axle, an engagement cylinder, an intermediate pin wheel, a hydraulic drive motor and a fixing frame;

[0014] The double swing arm suspension is formed by a suspension frame and two mutually parallel swing arms pinned together, and the two swing arms are pinned side by side between the lower part of the suspension frame and the axle;

[0015] The cylinder end of the suspension cylinder is rotatably connected to the upper part of the suspension frame of the double swing arm suspension, and the piston end is rotatably connected to the middle part of the swing arm at the bottom of the double swing arm suspension. The double swing arm suspension is adjusted up and down by the extension and contraction of the suspension cylinder; the two tire assemblies are mounted on the lateral sides of the double swing arm suspension through the axle, and a mounting seat is reserved on the axle. The lower part of the fixing frame is pinned to the mounting seat. The hydraulic drive motor is engaged with the gear on the tire assembly through the intermediate pin wheel to form a power transmission system, and the hydraulic drive motor and the intermediate pin wheel are respectively fixed to the two ends of the fixing frame;

[0016] The cylinder end of the engagement cylinder is rotatably connected to the double ears provided on the axle, and the piston end is pinned to the upper part of the fixing frame. The engagement cylinder extends, driving the fixing frame to rotate outward around its lower rotating shaft to swing the intermediate pin wheel outward, thereby disengaging the intermediate pin wheel from the gear on the tire assembly; conversely, the engagement cylinder retracts, driving the fixing frame to rotate around its lower rotating shaft to pull the intermediate pin wheel toward the tire assembly, so that the intermediate pin wheel engages with the gear on the tire assembly.

[0017] Preferably, the tire assembly further comprises: a tire and a wheel hub; the tire is coaxially mounted on one end of the wheel hub, and after the tire is inflated, an interference fit is achieved with the wheel hub to secure the two together, and the gear is coaxially fixed on the other end of the wheel hub.

[0018] Preferably, the total transverse width of the carrying platform does not exceed 3000 mm.

[0019] Preferably, the height of the cargo platform from the ground end of the driving wheel assembly is adjustable in the range of -200 mm to 1500 mm.

[0020] Beneficial effects:

[0021] 1. The carrying platform of the present invention is designed to meet the demand for transporting and delivering rescue equipment and disaster relief materials and equipment required for disaster relief. In the actual situation where large-scale equipment needs to be transported as a whole under poor road conditions and bridge and culvert height restrictions, a carrying platform with good maneuverability and a low cargo platform is designed, which can cope with the transportation and delivery of large-scale engineering machinery required for disaster relief in natural disasters such as landslides and landslides; the present invention can be used with a tractor to meet the needs of towing travel and to drive independently without the tractor, thereby adapting to various road conditions and conveniently transporting rescue equipment or materials to the disaster site; the present invention can realize the function of climbing steep slopes, with the maximum climbing gradient of towing travel being not less than 25%, and the maximum climbing gradient of self-driving travel being not less than 50%, and the self-driving state can realize multi-mode steering functions such as on-the-spot steering and crab walking; the traction travel can be turned on a sharp curve road with a flat curve radius of 15 meters.

[0022] 2. The front self-propelled platform of the present invention is specifically designed so that the telescopic gooseneck can be extended or retracted, thereby facilitating connection with the saddle of the tractor. Thus, when in the self-propelled state, the telescopic gooseneck is retracted, and the rotation center of the turntable I can be located in the middle of the front platform structure. This allows the weight of the cargo platform to apply a certain load to the saddle of the tractor in the traction state, thereby replacing the counterweight to increase the adhesion of the tractor, while maintaining the force balance in the self-propelled state. The weight of the cargo platform can be used to adjust the ballast position to achieve switching between the traction state and the self-propelled state. In particular, in the traction state, the addition of an additional counterweight can be avoided.

[0023] 3. The specific design of the cargo platform in the present invention can not only be reliably connected to the front and rear self-propelled platforms, but also the height of the cargo platform from the ground end of the driving wheel set can be greatly adjusted, thereby adapting to the needs of various working conditions such as beaching, normal driving and climbing steep slopes.

[0024] 4. The rear end of the load-bearing surface of the cargo platform of the present invention can be placed on the ground in conjunction with a transitional ramp, which is convenient for people to pass through and for loading and unloading of various materials, thereby improving loading and unloading efficiency.

[0025] 5. The specific design of the driving wheel set in the present invention enables the power transmission system formed by it to have a clutch function, which can realize the disconnection of the traction state and the engagement of the self-propelled state, thereby facilitating the smooth switching between the traction state and the self-propelled state. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a front view of the carrying platform of the present invention in the traction state.

[0027] Figure 2 It is a top view of the carrying platform of the present invention in the traction state.

[0028] Figure 3 It is a schematic diagram of the carrying platform of the present invention in a self-propelled state.

[0029] Figure 4 This is a schematic diagram of the height adjustment of the loading platform when the carrying platform of the present invention is in the self-propelled state.

[0030] Figure 5 This is a diagram of the carrying platform of the present invention in a fully loaded traction driving state.

[0031] Figure 6 It is a schematic diagram of the loading and unloading status of the carrying platform of the present invention.

[0032] Figure 7 This is a front view of the driving wheel set in the present invention.

[0033] Figure 8 It is a top view of the driving wheel set in the present invention.

[0034] Figure 9It is a structural schematic diagram of the tire assembly in the present invention.

[0035] Figure 10 This is a schematic diagram of the normal driving and turning conditions of the carrying platform of the present invention in the traction state.

[0036] Figure 11 It is a schematic diagram of the working condition of the carrying platform of the present invention turning sharply in the traction state.

[0037] Figure 12 This is a schematic diagram of the carrier platform of the present invention running aground in a self-propelled state.

[0038] Figure 13 It is a schematic diagram of the carrying platform of the present invention rotating in place in the self-propelled state.

[0039] Figure 14 This is a schematic diagram of the crab-like operating condition of the carrying platform of the present invention when it is in a self-propelled state.

[0040] Among them, 1. Front self-propelled platform; 11. Telescopic gooseneck; 12. Front platform structure; 13. Power pump station I; 14. Turntable I; 15. Slewing bearing I; 2. Cargo platform; 21. Loading platform; 22. Lifting cylinder; 23. Swing frame; 24. Swing cylinder; 25. Latch; 26. Transition springboard; 27. Gooseneck; 3. Rear self-propelled platform; 31. Rear platform structure; 32. Turntable II; 33. Slewing bearing II; 34. Power pump station II; 4. Drive wheel group; 41. Double swing arm suspension; 42. Suspension cylinder; 43. Tire assembly; 43-1. Tire; 43-2. ​​Wheel hub; 43-3. Gear; 44. Axle; 45. Engaging cylinder; 46. Intermediate pin wheel; 47. Hydraulic drive motor; 48. Fixed frame; 5. Cargo; 6. Tractor. DETAILED DESCRIPTION

[0041] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0042] This embodiment provides a towable loading platform that can adapt to a wider range of road transportation conditions with a higher throughput capacity, reduce the workload of road repair and construction, and improve the level of emergency transportation support in natural disasters.

[0043] As shown Figures 1 to 6 As shown, the carrying platform includes: a front self-propelled platform 1, a cargo platform 2, a rear self-propelled platform 3 and a driving wheel set 4; the two ends of the cargo platform 2 are respectively connected to the front self-propelled platform 1 and the rear self-propelled platform 3, and the bottom of the front self-propelled platform 1 and the rear self-propelled platform 3 are both installed with a driving wheel set 4; wherein, the cargo platform 2 can carry cargo 5; when towing, the carrying platform needs to be towed by a tractor 6 to travel.

[0044] In this embodiment, the front self-propelled platform 1 includes: a telescopic gooseneck 11, a front platform structure 12, a power pump station I13, a turntable I14 and a slewing support I15; the telescopic gooseneck 11 is installed in a slide provided on the upper surface of the front platform structure 12, and slides with the front platform structure 12. When the telescopic gooseneck 11 slides to a preset position, the front platform structure 12 limits it; the power pump station I13 is installed at the front end of the telescopic gooseneck 11 and is arranged above the traction pin; the turntable I14 is installed in the middle and rear part of the telescopic gooseneck 11 through the slewing support I15, so that after the telescopic gooseneck 11 is retracted, it is exactly located in the middle of the front platform structure 12.

[0045] In this embodiment, the rear self-propelled platform 3 includes: a rear platform structure 31, a turntable II 32, a slewing bearing II 33 and a power pump station II 34; the slewing bearing II 33 is installed in the middle of the rear platform structure 31, and the turntable II 32 is installed on the slewing bearing II 33; the power pump station II 34 is arranged at the rear of the rear platform structure 31.

[0046] In this embodiment, the cargo platform 2 includes: a load-bearing platform 21, a lifting cylinder 22, a swing frame 23 and a swing cylinder 24; the lifting cylinder 22, the swing frame 23 and the swing cylinder 24 are installed at the front and rear of the load-bearing platform 21; the cylinder end of the lifting cylinder 22 is pinned to the mounting ear of the load-bearing platform 21, the piston end is pinned to one end of the swing frame 23, and the other end of the swing frame 23 is pinned to the turntable Ⅰ14 of the front self-propelled platform 1 or the turntable Ⅱ32 of the rear self-propelled platform 3; the cylinder end of the swing cylinder 24 is pinned to the mounting ear in the middle of the swing frame 23, and the piston end is pinned to the turntable Ⅰ14 of the front self-propelled platform 1 or the turntable Ⅱ32 of the rear self-propelled platform 3;

[0047] In addition, a gooseneck 27 and a transition springboard 26 are provided at the rear of the load-bearing platform 21, and the two can be switched by a pin 25. The gooseneck 27 and the load-bearing platform 21 are pinned together by the pin 25, which facilitates the quick disassembly of the gooseneck 27; after the pin 25 is pulled out and the gooseneck 27 is separated from the load-bearing platform 21, the transition springboard 26 can be pinned to the rear of the load-bearing platform 21 by the pin 25, which facilitates the loading and unloading of goods 5 and the passage of personnel.

[0048] In this embodiment, Figures 7 to 9 As shown, the driving wheel assembly 4 includes: a double swing arm suspension 41, a suspension cylinder 42, a tire assembly 43, an axle 44, an engagement cylinder 45, an intermediate pin wheel 46, a hydraulic drive motor 47 and a fixing frame 48;

[0049] The double swing arm suspension 41 is formed by a suspension frame and two parallel swing arms pinned together, and the two swing arms are pinned side by side between the lower part of the suspension frame and the axle 44. The axle 44, the suspension frame and the two swing arms of the double swing arm suspension 41 form a four-bar linkage.

[0050] The cylinder end of the suspension cylinder 42 is pinned to the upper part of the suspension frame of the double swing arm suspension 41, and the piston end is pinned to the middle part of the swing arm at the bottom of the double swing arm suspension 41. The double swing arm suspension 41 drives the four-link mechanism to follow up through the extension and contraction of the suspension cylinder 42, thereby achieving lifting and lowering adjustment; the two tire assemblies 43 are installed on the lateral sides of the double swing arm suspension 41 through the axle 44, and a mounting seat is reserved on the axle 44 for installing the fixing frame 48. The hydraulic drive motor 47 is engaged with the gear 43-3 on the tire assembly 43 through the intermediate pin wheel 46 to form a power transmission system, and the hydraulic drive motor 47 and the intermediate pin wheel 46 are respectively fixed to the two ends of the fixing frame 48;

[0051] The cylinder end of the engagement cylinder 45 is pinned to the two ears provided on the axle 44, and the piston end is pinned to the upper part of the fixing frame 48. When the engagement cylinder 45 is extended, it can drive the fixing frame 48 to rotate outward about its lower pin shaft, thereby swinging the intermediate pin wheel 46 outward, thereby disengaging the intermediate pin wheel 46 from the gear 43-3 on the tire assembly 43. Conversely, when the engagement cylinder 45 is retracted, it can drive the fixing frame 48 to rotate about its lower pin shaft, thereby pulling the intermediate pin wheel 46 toward the tire assembly 43, thereby ensuring that the intermediate pin wheel 46 is engaged with the gear 43-3 on the tire assembly 43.

[0052] Among them, the tire assembly 43 consists of a tire 43-1, a wheel hub 43-2 and a gear 43-3; the tire 43-1 is coaxially mounted on one end of the wheel hub 43-2, and after the tire 43-1 is inflated, it is interference fit with the wheel hub 43-2 to achieve fixation of the two, and the gear 43-3 is coaxially fixed to the other end of the wheel hub 43-2.

[0053] In this embodiment, six sets of driving wheel groups 4 are preferably provided under the front platform structure 12 and the rear platform structure 31, and they are all symmetrically arranged in groups of two, and evenly arranged front to back. The axes of the three groups under the front platform structure 12 are the first, second, and third axes from front to back; the axes of the three groups under the rear platform structure 31 are the first, second, and third axes from front to back.

[0054] In this embodiment, it is preferred that the total transverse width of the entire carrying platform does not exceed 3000 mm to meet regulatory requirements.

[0055] In this embodiment, the front platform structure 12 and the driving wheel group 4 at its lower portion form an integral whole, and the position can be adjusted under the telescopic gooseneck 11, so that the telescopic gooseneck 11 extends a certain length from the front platform structure 12 when in the traction state, so as to facilitate connection with the saddle of the tractor 6; when in the self-propelled state, the telescopic gooseneck 11 is retracted, so that the rotation center of the turntable I 14 can be located on the second axis of the front self-propelled platform 1; in this way, the weight of the cargo platform 2 can be used to apply a certain load to the saddle of the tractor 6 in the traction state, thereby replacing the counterweight to increase the adhesion of the tractor 6, and the force balance in the self-propelled state can be maintained.

[0056] In this embodiment, the power pump station I13 can provide the front self-propelled platform 1 and the driving wheel group 4 installed under the front self-propelled platform 1 with the hydraulic, electronic control and air pressure and other powers required for various states; the power pump station II34 can provide the rear self-propelled platform 3 and the driving wheel group 4 installed under the rear self-propelled platform 3 with the hydraulic, electronic control and air pressure and other powers required for various states; thereby ensuring that the steering of the driving wheel group 4 is flexible, the braking is reliable, and the driving power is sufficient and stable during the driving process; in addition, the power pump station I13 and the power pump station II34 also provide hydraulic power for the hydraulic mechanism actions of the front and rear parts of the cargo platform 2 respectively.

[0057] In this embodiment, the swing cylinder 24 has two working states: floating and locked. During normal driving, the swing cylinder 24 is set to the floating state; when climbing a steep slope, the swing cylinder 24 needs to be switched to the locked state and adjusted according to road conditions and driving needs; among them, this adjustment can also be automatically controlled by the control system of the entire vehicle.

[0058] In this embodiment, the lifting and lowering adjustment of the cargo platform 2 can be achieved by providing hydraulic power to the lifting cylinder 22 and the swing cylinder 24 controlled by the power pump station I13 and the power pump station II34 respectively or simultaneously; in addition, the extension and retraction of the suspension cylinder 42 of the driving wheel group 4 can also affect the height of the cargo platform 2. If all the driving wheel groups 4 are raised or lowered at the same time, the cargo platform 2 can also be driven to rise or fall accordingly; the above two lifting and adjusting actions are superimposed, and the height H of the cargo platform 2 from the near-ground end of the driving wheel group 4 can be adjusted to a range of -200mm~1500mm, thereby ensuring that the carrying platform can not only carry cargo smoothly through the 4-meter height-restricted road, but also adapt to special working conditions such as climbing a 50% steep slope.

[0059] In this embodiment, when loading and unloading, the gooseneck 27 needs to be disassembled from the load-bearing platform 21; at this time, the power pump station II 34 on the rear self-propelled platform 3 is started to make the driving wheel group 4 of the rear self-propelled platform 3 work, and the latch 25 is manually removed. The power pump station II 34 can drive the rear self-propelled platform 3 and the components installed thereon to move and turn as a whole.

[0060] In this embodiment, the conversion between the traction state and the self-propelled state is mainly reflected in the engagement and disengagement between the intermediate pin wheel 46 of the driving wheel group 4 and the gear 43-3 of the tire assembly 43. When the intermediate pin wheel 46 is engaged with the gear 43-3 of the tire assembly 43, the liquid drive motor 47 can drive the tire 43-1; since the engagement and disengagement of the intermediate pin wheel 46 and the gear 43-3 of the tire assembly 43 is driven by the extension and contraction of the engagement cylinder 45 to drive the fixed frame 48 to swing, and the liquid drive motor 47 and the intermediate pin wheel 46 are both fixed on the fixed frame 48, the engagement and disconnection of the power transmission can be realized. This disconnection method ensures the complete disconnection of the power transmission system without affecting the driving speed in the traction state. Therefore, it can be adapted to a traction speed of not less than 80km / h and a self-propelled speed of not less than 3km / h.

[0061] In this embodiment, when the road conditions are good and long-distance travel is required, the carrying platform can be adjusted to the traction state to quickly and efficiently transfer goods; when the road conditions are poor, the slope is too large, the turning radius is small, and the traction state cannot pass smoothly, the carrying platform can be adjusted to the self-propelled state and driven by the power pump station I13 and power pump station II34 set on the carrying platform.

[0062] In this embodiment, the steering is that the turntable I14 has an active rotation function relative to the slewing support I15 and the turntable II32 has an active rotation function relative to the slewing support II33, and the slewing support I15 and the slewing support II33 both have a locking function; when encountering different road conditions or driving conditions, they can be adjusted as needed, which can be specifically divided into: normal driving steering in traction state, sharp turning condition in traction state, beaching condition in self-propelled state, in-situ rotation condition in self-propelled state and crab-like condition in self-propelled state; wherein, the turntable I14 is fixed to the slewing support I15 by bolts, and the turntable II32 is fixed to the slewing support II33 by bolts. The slewing support I15 and the slewing support II33 are similar to bearings, and their locking can be achieved by existing technology;

[0063] When turning in normal traction mode, all driving wheel sets 4 can be turned in a controlled manner, but the slewing bearing II 33 on the rear self-propelled platform 3 is locked. Under the traction force of the tractor 6, turning is achieved. The turning radius of this working condition is relatively large. When turning into a sharp turn in the traction mode, the slewing bearing II 33 on the rear self-propelled platform 3 needs to be unlocked to achieve controlled rotation. At the same time, when turning a sharp turn, the vehicle speed needs to be reduced to no more than 5 km / h. The steering angle of the slewing bearing II 33 is manually operated to achieve the sharp turn condition, so that the vehicle can pass a road with a flat curve radius of 15 meters.

[0064] Under the steering condition of the self-driving state, during normal steering, both the slewing bearing I 15 and the slewing bearing II 33 are locked, and normal steering of the self-driving state is achieved by relying on the steering of the driving wheel group 4; when special steering is required, such as in-situ steering and crab steering conditions, the height of the cargo platform 2 can be first lowered and adjusted to a beached state, all the driving wheel groups 4 are off the ground, and the swing cylinder 24 is locked to ensure that the front self-driving platform 1 and the rear self-driving platform 3 remain balanced and do not tip over, and then the slewing bearing I 15 and the slewing bearing II 33 are operated. At this time, the front self-driving platform 1 and the rear self-driving platform 3 can be driven to rotate respectively. When the rotation angle is appropriate, the slewing bearing I 15 and the slewing bearing II 33 are locked again, and then the cargo platform 2 is lifted to make the height of the cargo platform 2 appropriate, and then power is provided to the driving wheel group 4 to achieve in-situ steering and crab steering driving conditions.

[0065] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A towable loading platform, characterized in that: include: A front self-propelled platform (1), a cargo platform (2), a rear self-propelled platform (3) and a driving wheel set (4); both ends of the cargo platform (2) are connected to the front self-propelled platform (1) and the rear self-propelled platform (3), and the bottoms of the front self-propelled platform (1) and the rear self-propelled platform (3) are both equipped with a driving wheel set (4); wherein the cargo platform (2) is used for carrying cargo (5); The front self-propelled platform (1) comprises: a telescopic gooseneck (11), a front platform structure (12), a power pump station I (13), a slewing platform I (14) and a slewing support I (15); the telescopic gooseneck (11) is installed in a slideway provided on the upper surface of the front platform structure (12) and is slidably matched with the front platform structure (12). When the telescopic gooseneck (11) slides to a preset position, the front platform structure (12) limits it; the power pump station I (13) is installed at the front end of the telescopic gooseneck (11) and is arranged above the traction pin; the slewing platform I (14) is installed at the middle and rear ends of the telescopic gooseneck (11) through the slewing support I (15), so that the telescopic gooseneck (11) is located in the middle of the front platform structure (12) after it is retracted; wherein the traction pin is provided at the front end of the telescopic gooseneck (11) and is used to connect the saddle of the tractor (6) to the telescopic gooseneck (11) to achieve traction of the front self-propelled platform (1); The rear self-propelled platform (3) comprises: a rear platform structure (31), a slewing platform II (32), a slewing bearing II (33) and a power pump station II (34); the slewing bearing II (33) is installed in the middle of the rear platform structure (31), and the slewing platform II (32) is installed on the slewing bearing II (33); the power pump station II (34) is arranged at the rear of the rear platform structure (31); The cargo platform (2) comprises: a bearing platform (21), a lifting cylinder (22), a swing frame (23) and a swing cylinder (24); the lifting cylinder (22), the swing frame (23) and the swing cylinder (24) are installed at the front and rear of the bearing platform (21); the cylinder end of the lifting cylinder (22) is rotatably connected to the bearing platform (21), the piston end is rotatably connected to one end of the swing frame (23), and the other end of the swing frame (23) is rotatably connected to the turntable I (14) of the front self-propelled platform (1) or the turntable II (32) of the rear self-propelled platform (3); the cylinder end of the swing cylinder (24) is rotatably connected to the middle part of the swing frame (23), and the piston end is rotatably connected to the turntable I (14) of the front self-propelled platform (1) or the turntable II (32) of the rear self-propelled platform (3); The rear portion of the carrying platform (21) is further provided with a gooseneck (27) and a transition springboard (26), and the two can be switched by a latch (25). When the gooseneck (27) and the carrying platform (21) are pinned together by the latch (25), the gooseneck (27) connects the rear self-propelled platform (3) to the rear portion of the carrying platform (21); when the gooseneck (27) is separated from the carrying platform (21), the transition springboard (26) is pinned together by the latch (25) to the rear portion of the carrying platform (21) for loading and unloading of goods (5) and passage of personnel; The driving wheel assembly (4) includes: a double swing arm suspension (41), a suspension cylinder (42), a tire assembly (43), an axle (44), an engagement cylinder (45), an intermediate pin wheel (46), a hydraulic drive motor (47) and a fixing frame (48); The double swing arm suspension (41) is formed by a suspension frame and two mutually parallel swing arms pinned together, and the two swing arms are pinned side by side up and down between the lower part of the suspension frame and the axle (44); The cylinder end of the suspension cylinder (42) is rotatably connected to the upper part of the suspension frame of the double swing arm suspension (41), and the piston end is rotatably connected to the middle part of the swing arm at the bottom of the double swing arm suspension (41). The double swing arm suspension (41) is adjusted up and down by the telescopic movement of the suspension cylinder (42); the two tire assemblies (43) are mounted on the lateral sides of the double swing arm suspension (41) through the axle (44), and a mounting seat is reserved on the axle (44). The lower part of the fixing frame (48) is pinned to the mounting seat. The hydraulic drive motor (47) is engaged with the gear (43-3) on the tire assembly (43) through the intermediate pin wheel (46) to form a power transmission system, and the hydraulic drive motor (47) and the intermediate pin wheel (46) are respectively fixed to the two ends of the fixing frame (48); The cylinder end of the engagement cylinder (45) is rotatably connected to the two ears provided on the axle (44), and the piston end is pinned to the upper part of the fixing frame (48). When the engagement cylinder (45) is extended, the fixing frame (48) is driven to rotate outward around its lower rotation axis to swing the intermediate pin wheel (46) outward, thereby disengaging the intermediate pin wheel (46) from the gear (43-3) on the tire assembly (43). Conversely, when the engagement cylinder (45) is retracted, the fixing frame (48) is driven to rotate around its lower rotation axis to pull the intermediate pin wheel (46) toward the tire assembly (43), so that the intermediate pin wheel (46) is engaged with the gear (43-3) on the tire assembly (43).

2. The towable carrying platform according to claim 1, characterized in that: Six sets of driving wheel groups (4) are respectively arranged under the front platform structure (12) and the rear platform structure (31), and are arranged in pairs, symmetrically on the left and right, and evenly front and back.

3. The towable carrying platform according to claim 1, wherein: The tire assembly (43) further comprises: a tire (43-1) and a wheel hub (43-2); the tire (43-1) is coaxially sleeved on one end of the wheel hub (43-2); after the tire (43-1) is inflated, an interference fit is formed with the wheel hub (43-2) to achieve fixation of the two; and the gear (43-3) is coaxially fixed to the other end of the wheel hub (43-2).

4. The towable carrying platform according to any one of claims 1 to 3, characterized in that: The total transverse width of the carrying platform does not exceed 3000mm.

5. The towable carrying platform according to any one of claims 1 to 3, characterized in that: The height of the cargo platform (2) from the ground end of the driving wheel set (4) can be adjusted in a range of -200 mm to 1500 mm.

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