Steel coil transportation flat car

Abstract

The invention relates to the technical field of transportation, and discloses a steel coil transportation platform lorry which comprises a platform lorry and a V-shaped anti-rolling device arranged on the platform lorry, and the V-shaped anti-rolling device comprises a V-shaped assembly, a connecting rod connected with the V-shaped assembly and a power device connected with the connecting rod; the V-shaped assembly comprises two V-shaped blocks which are symmetrically arranged, the two V-shaped blocks are movably arranged on the flat plate transport vehicle, rotating points are arranged at the connecting positions of the two V-shaped blocks and the flat plate transport vehicle, and rotating lifting lugs are arranged at the connecting positions of the two V-shaped blocks and the connecting rod; the connecting rod comprises a driven connecting rod connected with the two V-shaped blocks and a driving connecting rod movably connected with the driven connecting rod; the power device comprises a worm and gear mechanism connected with the driving connecting rod and a hydraulic oil cylinder. The safety of the transport vehicle in the steel coil transportation process can be guaranteed, the V-shaped anti-rolling devices are rotated and folded, so that the transport vehicle is in a flat plate state, other goods can be normally transported, and the use efficiency of the truck is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of transportation technology, and specifically to a flatbed truck for transporting steel coils. Background Technology

[0002] Steel coils, as a type of steel, have a wide range of applications, from large-scale industries like automobile manufacturing, electrical products, locomotives, aviation, and precision instruments, to small-scale applications like food cans and gaskets. After steel mills produce steel coils, the most common mode of transportation is by road. A single steel coil weighs around twenty tons. Due to its high density, the small surface area of ​​the coil in the truck bed results in excessive pressure, concentrating the weight around the coil. When transporting steel coils by truck, in case of an emergency and sudden braking, the immense inertia combined with the sharp edges of the coil can easily cause the binding ropes to break, resulting in the coil rolling and potentially breaking through the truck bed or cab, causing injury or death to the driver and resulting in serious accidents. In the event of an accident, the steel coil may roll off or fly out, posing a serious danger to pedestrians and other vehicles.

[0003] When transporting steel coils on ordinary trucks, to reduce the risk of accidents caused by cargo rolling during transport, the steel coils are hoisted onto the truck and then laid down. Instead of contacting the bottom of the truck bed with the diameter of the coil, the coil's end face contacts the bottom of the truck bed. This changes the contact area from line contact to surface contact, increasing friction and making the coil less likely to slide within the truck bed, thus reducing the risk of accidents to some extent. However, this method increases the difficulty and time required for loading and unloading. With the diameter contact method, the steel coils can be easily loaded and unloaded using a crane or forklift. With the end face contacting the bottom of the truck bed, unloading with a forklift is much more difficult, requiring a crane's electromagnetic chuck in conjunction with lifting straps. This places higher demands on the unloading environment.

[0004] When transporting steel coils in ordinary trucks, the method of laying the steel coil down with its end face in contact with the bottom of the truck bed requires repeated operations of standing the steel coil up, laying it down, and standing it up again. This can easily cause the steel straps binding the steel coil to loosen and fall off. Since the steel coil is made by winding steel plates in circles from small to large, the steel coil has a lot of internal stress. If the steel straps fall off, the steel coil will loosen instantly, causing injury or death to the lifting personnel and damage to the steel coil.

[0005] In summary, while the current method of transporting steel coils in ordinary trucks, where the coil diameter contacts the bottom of the truck bed, is convenient and quick to load and unload and can effectively ensure the integrity of the goods, it poses significant transportation safety risks and can easily lead to accidents. Laying the steel coils down for transport reduces these risks but increases the difficulty, efficiency, and quality of loading and unloading, potentially damaging the coils and endangering the safety of personnel. Existing specialized steel coil transport vehicles use a structure where the coil securing device is integrated with the truck bed, resulting in a non-flat truck bed. This limits the use of such vehicles to transporting only steel coils or rolled goods, significantly reducing their utilization rate. Summary of the Invention

[0006] In view of the above-mentioned shortcomings in the prior art, the present invention provides a steel coil transport flatbed truck that can transport ordinary goods and complete the loading and unloading of steel coils with high quality and quantity, eliminating the safety risks of steel coils during transportation.

[0007] To achieve the above-mentioned objectives, the technical solution adopted by the present invention is as follows: a steel coil transport flatbed vehicle, comprising a flatbed transport vehicle and a V-shaped anti-roll device installed on the flatbed transport vehicle, wherein the V-shaped anti-roll device comprises a V-shaped component, a connecting rod connected to the V-shaped component, and a power device connected to the connecting rod.

[0008] The V-shaped component includes two symmetrically arranged V-shaped blocks, which are movably mounted on a flatbed transport vehicle. A rotation point is provided at the connection between the two V-shaped blocks and the flatbed transport vehicle, and a rotating lifting lug is provided at the connection between the two V-shaped blocks and the connecting rod.

[0009] The linkage includes a driven link connected to two V-blocks and a driving link movably connected to the driven link;

[0010] The power unit includes a worm gear mechanism and a hydraulic cylinder connected to the drive linkage.

[0011] Furthermore, in the aforementioned steel coil transport flatbed truck, the rotating lug has a double-piece structure, with the end of the driven connecting rod connected to the V-block located inside the rotating lug; both the driven connecting rod and the rotating lug are provided with a first pin hole, a first pin is movably installed in the first pin hole, one end of the first pin is provided with a step, the end of the first pin away from the step is provided with a first thread, and a first nut is movably installed on the first thread.

[0012] Furthermore, in the aforementioned steel coil transport flatbed vehicle, the rotation point includes a second pin hole provided on the V-block and a second pin shaft provided on the flatbed transport vehicle, with a second thread and a second nut matching the second thread provided on the second pin shaft.

[0013] Furthermore, in the aforementioned steel coil transport flatbed truck, the driven link is connected to the driving link.

[0014] Furthermore, the aforementioned steel coil transport flatbed truck has an anti-rotation strip on the driven link and an anti-rotation groove on the driving link that matches the anti-rotation strip.

[0015] Furthermore, in the aforementioned steel coil transport flatbed truck, the end of the active connecting rod connected to the power unit has a single-hole keyway structure, and a worm output shaft is provided on the worm gear mechanism. The worm output shaft is located in the single-hole keyway, and the end of the worm output shaft is provided with a third thread and a third nut that matches the third thread.

[0016] The beneficial effects of this invention are as follows: By utilizing the locking action of the anti-rotation strip and anti-rotation groove when the connecting rods are collinear, and the self-locking function of the worm gear mechanism, this invention effectively ensures the safety of the V-shaped anti-roll device during use, preventing it from rotating and ensuring the stability of the steel coil during transportation. When the V-shaped anti-roll device is retracted, it does not obstruct the transportation of ordinary goods, improving the efficiency and quality of truck use, and also providing truck drivers with a wider range of cargo transportation options. Attached Figure Description

[0017] Figure 1 A schematic diagram of the V-shaped anti-roll device after it has been opened;

[0018] Figure 2 This is a schematic diagram of the V-shaped anti-roll device after it is closed;

[0019] Figure 3 A schematic diagram of the loading structure for transporting steel coils on a flatbed truck;

[0020] Figure 4 This is a schematic diagram of the rotating lifting lug structure;

[0021] Figure 5 A schematic diagram of the connection structure between the worm gear mechanism and the driving link;

[0022] The components are: 1. Flatbed transport vehicle, 2. V-block, 3. Rotation point, 4. Rotating lug, 5. Driven connecting rod, 6. Driving connecting rod, 7. Worm gear mechanism, 8. Hydraulic cylinder, 9. First pin hole, 10. First pin shaft, 11. Step, 12. Worm output shaft, 13. First nut, 14. Anti-rotation bar, 15. Anti-rotation groove, 16. Third nut. Detailed Implementation

[0023] The specific embodiments of the present invention are described below to enable those skilled in the art to understand the present invention. However, it should be understood that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, various changes are obvious as long as they are within the spirit and scope of the present invention as defined and determined by the appended claims. All inventions utilizing the concept of the present invention are protected.

[0024] like Figures 1-5 As shown, this embodiment provides a steel coil transport flatbed vehicle, including a flatbed transport vehicle 1 and a V-shaped anti-roll device installed on the flatbed transport vehicle 1. When the V-shaped anti-roll device is open, it is used to prevent the steel coil from rolling after being placed on the vehicle body. When closed, the vehicle body is flat and used for transporting ordinary goods. The V-shaped anti-roll device includes a V-shaped component, a connecting rod connected to the V-shaped component, and a power unit connected to the connecting rod.

[0025] The V-shaped assembly includes two symmetrically arranged V-blocks 2, which are movably mounted on a flatbed transport vehicle 1. A rotation point 3 is provided at the connection between the two V-blocks 2 and the flatbed transport vehicle 1. The rotation point 3 includes a second pin hole on the V-block 2 and a second pin shaft on the flatbed transport vehicle 1. The second pin hole has a machining accuracy of H7 and a good surface roughness. The second pin shaft is fixedly mounted on the carriage of the flatbed transport vehicle 1, and its fit with the pin hole is H7 / h6, ensuring that the V-block 2 can rotate on the second pin shaft. A second thread and a matching second nut are provided on the second pin shaft to prevent the V-block 2 from falling off during transportation.

[0026] The connecting rod includes a driven connecting rod 5 connected to two V-blocks 2 and a driving connecting rod 6 movably connected to the driven connecting rod 5; the power unit includes a worm gear mechanism 7 and a hydraulic cylinder 8 connected to the driving connecting rod 6.

[0027] A rotating lug 4 is provided at the connection between the two V-blocks 2 and the connecting rod. The rotating lug 4 has a double-piece structure, with the end of the driven connecting rod 5 connected to the V-block 2 located inside the rotating lug 4. Both the driven connecting rod 5 and the rotating lug 4 are provided with a first pin hole 9. A first pin 10 is movably installed in the first pin hole 9. One end of the first pin 10 is provided with a step 11, and the end of the first pin 10 away from the step 11 is provided with a first thread. A first nut 13 is movably installed on the first thread. After the first thread and the first nut 13 are engaged, it can ensure that the first pin 10 does not shift axially but can rotate radially.

[0028] The driven link 5 is connected to the driving link 6 using a slotted lifting lug structure. An anti-rotation strip 14 is provided on the driven link 5, and an anti-rotation groove 15 matching the anti-rotation strip 14 is provided on the driving link 6. This is to prevent the link from over-rotating after rotating to a certain position. When the driving link 6 and the driven link 5 rotate to a certain angle, the anti-rotation strip 14 of the driven link 5 is engaged within the anti-rotation groove 15 of the driving link 6.

[0029] The end of the active connecting rod 6 connected to the power unit has a single-hole keyway structure. The worm gear mechanism 7 is equipped with a worm output shaft 12, which is located in the single-hole keyway. The end of the worm output shaft 12 is equipped with a third thread and a third nut 16 that matches the third thread.

[0030] The worm gear mechanism 7 of the power unit mainly drives the rotation of the active connecting rod 6. The hydraulic cylinder 8 is installed on one side of the active connecting rod 6. When the active connecting rod 6 and the driven connecting rod 5 move from the folded state to the unfolded state, the hydraulic cylinder 8 lifts and pushes the driven connecting rod 5 to rotate, passing around the jamming point. The worm gear mechanism 7 drives the connecting rod to continue rotating. When the active connecting rod 6 and the driven connecting rod 5 are collinear, the V-block 2 is fully open.

[0031] In operation, the power unit is switched on, and the worm gear mechanism 7 rotates clockwise, driving the driving connecting rod 6 to rotate clockwise. Simultaneously, the hydraulic cylinder 8 starts working, pushing the driven connecting rod 5 to rotate counterclockwise. The driven connecting rod 5 drives the V-block 2 to rotate counterclockwise. When the driving connecting rod 6 and the driven connecting rod 5 are collinear, the anti-rotation strip 14 on the driven connecting rod 5 is engaged in the anti-rotation groove 15 of the driving connecting rod 6, and the worm gear mechanism 7 stops rotating. The hydraulic cylinder 8 retracts and extends the hydraulic rod, and the V-blocks 2 on both sides are fully open.

[0032] The steel coil is hoisted into the center of the V-shaped anti-roll device, with the arcs on both sides perfectly enclosing the coil, ensuring that it will not rotate radially during transportation. Due to the coil's own weight, it will press down on the left and right V-blocks 2, rotating towards the center of the coil. The collinear dead points of the driving and driven connecting rods 5 firmly control the left and right V-blocks 2, preventing them from rotating. The anti-rotation strip 14 and the anti-rotation groove 15 work together to prevent the connecting rods from rotating in the opposite direction.

[0033] During transportation, the steel coils can be transported safely and smoothly under the protection of the V-shaped anti-roll device. After the steel coils are transported, ordinary goods can be loaded. Simply press a switch, and the worm gear mechanism 7 will rotate counterclockwise, driving the connecting rod. The connecting rod will drive the V-block 2 to rotate clockwise, thus closing the V-shaped anti-roll device. The vertical plane of the V-block 2 will become a horizontal plane, which will be flush with the plane of the carriage, ensuring the flatness of the carriage. Ordinary goods can then be loaded for transportation.

[0034] Through design, manufacturing, and practical application, it was found that installing a V-shaped anti-roll device on a regular truck effectively ensures safety during use. This is achieved through the dead-point effect of the collinear connecting rods and the self-locking function of the worm gear mechanism. The V-shaped anti-roll device prevents rotation and ensures the stability of the steel coils during transport. When retracted, the V-shaped anti-roll device does not obstruct the transport of ordinary goods, improving the truck's efficiency and overall performance.

Claims

1. A steel coil transport flatbed truck, characterized in that: It comprises a flatbed transport vehicle (1) and a V-shaped anti-roll device arranged on the flatbed transport vehicle (1), wherein the V-shaped anti-roll device comprises a V-shaped component, a connecting rod connected to the V-shaped component, and a power device connected to the connecting rod; The V-shaped assembly comprises two symmetrically arranged V-shaped blocks (2), the two V-shaped blocks (2) being movably arranged on the flatbed transport vehicle (1), a rotation point (3) being arranged at the connection between the two V-shaped blocks (2) and the flatbed transport vehicle (1), and a rotation lug (4) being arranged at the connection between the two V-shaped blocks (2) and the connecting rod; The connecting rod comprises a driven connecting rod (5) connected to the two V-shaped blocks (2) and an active connecting rod (6) movably connected to the driven connecting rod (5); The power device comprises a worm gear mechanism (7) connected to an active connecting rod (6) and a hydraulic cylinder (8).

2. The steel coil transport flatbed vehicle according to claim 1, characterized in that: The rotating ear (4) is a double-piece structure, and the end of the driven connecting rod (5) connected to the V-block (2) is arranged in the rotating ear (4); the driven connecting rod (5) and the rotating ear (4) are both provided with a first pin hole (9), a first pin shaft (10) is movably arranged in the first pin hole (9), a step (11) is arranged at one end of the first pin shaft (10), a first thread is arranged at one end of the first pin shaft (10) away from the step (11), and a first nut (13) is movably arranged on the first thread.

3. The steel coil transport flatbed vehicle according to claim 1, characterized in that: The rotation point (3) comprises a second pin hole arranged on the V-block (2) and a second pin shaft arranged on the flatbed transport vehicle (1), and the second pin shaft is provided with a second thread and a second nut matching the second thread.

4. The steel coil transport flatbed vehicle according to claim 1, characterized in that: The driven connecting rod (5) is connected to the active connecting rod (6).

5. The steel coil transport flatbed vehicle according to claim 1, characterized in that: A rotation-stopping strip (14) is arranged on the driven connecting rod (5), and a rotation-stopping groove (15) matching the rotation-stopping strip (14) is arranged on the active connecting rod (6).

6. The steel coil transport flatbed vehicle according to claim 1, characterized in that: One end of the active connecting rod (6) connected to the power device is a single-hole keyway structure, a worm output shaft (12) is arranged on the worm gear mechanism (7), the worm output shaft (12) is arranged in the single-hole keyway, and a third thread and a third nut (16) matching the third thread are arranged at the end of the worm output shaft (12).

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