Cargo handling lift-rotary device

Abstract

The present application relates to the technical field of cargo handling equipment, and particularly relates to a lifting and rotating device for cargo handling, which comprises a walking platform, a supporting platform, a lifting mechanism and a rotating mechanism; the supporting platform comprises a mounting box, a plurality of floating supporting units and a plurality of synchronous leveling units, a plurality of supports are arranged in an array in the mounting box, the plurality of floating supporting units are arranged in a rectangular array on the mounting box, the floating supporting units are used for adaptively matching the bottom shape of cargo, the synchronous leveling units are arranged on the supports, and the synchronous leveling units are used for controlling the tops of the plurality of floating supporting units to be in the same plane; the lifting mechanism is used for driving the supporting platform to lift in the vertical direction; and the rotating mechanism is used for driving the supporting platform to rotate as a whole; the present application adaptively matches various concave-convex bottom cargo through the plurality of floating supporting units, so that various special-shaped bottom cargo can be stably carried.

Description

Technical Field

[0001] This invention relates to the field of cargo loading and unloading equipment technology, specifically to a lifting and rotating device for cargo loading and unloading. Background Technology

[0002] In automated operations of warehousing and manufacturing, lifting and rotating transfer equipment is the core equipment for loading and unloading goods and docking between workstations.

[0003] Patent CN224277372U discloses a handling robot with a lifting mechanism. The device includes a vehicle body, a moving component, an independent turntable, a support plate, a lifting component, and a rotating component. The vehicle body moves and transports goods using the moving component. The lifting component drives the support plate to lift and lower as a whole through a lead screw and a linkage rod. The support plate has through holes to avoid the turntable. When it is necessary to adjust the orientation of the goods, the lifting component lowers the support plate below the turntable, placing the goods on the turntable surface alone. Then, the rotating component drives the turntable to rotate independently through bevel gear transmission to complete the angle calibration of the goods. The support plate is equipped with a flip-up barrier plate to limit the goods or expand the carrying space. The worm gear structure enables the barrier plate to self-lock at the angle.

[0004] Although the above-mentioned solution features a separate support plate and a rotating turntable, allowing for adjustments to the cargo orientation without multiple vehicle movements, it still suffers from the problem that the support platform cannot adaptively match the bottom surface of irregularly shaped cargo. The support plate is a rigid, flat surface that can only stably support standard box-shaped cargo with regular bottom surfaces. When handling non-standard workpieces with uneven bottoms or irregular contours, the support plate cannot fit the bottom of the cargo, resulting in uneven force distribution at each support point. Consequently, the cargo is prone to shifting and slipping during transport, making it unsuitable for handling a variety of cargo. Summary of the Invention

[0005] To address the aforementioned issues, a lifting and rotating device for loading and unloading goods is provided. This device uses multiple floating support units to adaptively adapt to various types of goods with uneven bottom surfaces, thereby achieving stable support for a variety of irregularly shaped bottom goods.

[0006] To address the problems of existing technologies, this invention provides a lifting and rotating device for loading and unloading goods, comprising a traveling platform, a support platform, a lifting mechanism, and a rotating mechanism. The support platform includes a mounting box, multiple floating support units, and multiple synchronous leveling units. The mounting box is horizontally positioned above the traveling platform, and multiple supports are arrayed within the mounting box. The multiple floating support units are arranged in a rectangular array on the mounting box. The floating support units are used to adaptively match the bottom shape of the goods. Each floating support unit corresponds to a synchronous leveling unit, which is mounted on the supports and controls the tops of the multiple floating support units to be on the same plane. The lifting mechanism is mounted on the traveling platform and drives the support platform to move vertically. The rotating mechanism drives the support platform to rotate as a whole.

[0007] Preferably, the floating support unit includes a fixed column and a floating support block; the fixed column is vertically installed on the top of the mounting box, and a mounting groove is provided on the top of the fixed column. An elastic element for the floating support block is provided in the mounting groove, and the elastic element is a compression spring; the floating support block is sleeved on the upper part of the fixed column.

[0008] Preferably, the synchronous flushing unit includes a connecting plate and two magnetic rings; the connecting plate is connected to the floating support unit, and the connecting plate is provided with a guide rod that is slidably connected to the bracket; the two magnetic rings are respectively disposed on the bracket and the guide rod, and the two magnetic rings generate a repulsive force between them.

[0009] Preferably, one of the two magnetic rings is an electromagnetic ring and the other is a permanent magnet ring. The magnitude of the repulsive force between the two magnetic rings is adjusted by controlling the energization state of the electromagnetic ring.

[0010] Preferably, buffer pads are provided on both the upper and lower sides of the connecting plate.

[0011] Preferably, a groove is provided on the outer circumferential surface of the fixed column along the axial direction, and a limiting pin is provided on the floating support block. The limiting pin is embedded in the groove and slides along the axial direction of the groove for limitation.

[0012] Preferably, the lifting mechanism includes a fixed cylinder, a lifting column, an inclined support assembly, and a lifting drive assembly; the fixed cylinder is slidably connected to the lifting column on the same axis; the inclined support assembly is disposed at the upper end of the lifting column; and the lifting drive assembly is used to drive the lifting column to reciprocate up and down along the axial direction.

[0013] Preferably, the inclined support assembly includes a rotating ring and a support ring arranged coaxially; the rotating ring has a first inclined surface with an angle of 45 degrees to the axis; and the support ring has a second inclined surface that corresponds to and fits into the first inclined surface.

[0014] Preferably, the lifting drive assembly includes a lead screw, a first rotary driver, and a worm gear transmission component; the lead screw is threadedly connected to the lifting column; the first rotary driver drives the lead screw to rotate; the worm gear transmission component uses its self-locking characteristic to prevent the lead screw from rotating in the opposite direction.

[0015] Preferably, the rotating mechanism includes a turntable and a rotation drive assembly; the turntable is connected to the middle of the mounting box; the rotation drive assembly is used to drive the turntable to rotate.

[0016] The advantages of this invention compared to the prior art are:

[0017] 1. This invention comprises a walking platform, a support platform, a lifting mechanism, and a rotating mechanism. The lifting mechanism drives the support platform to rise and fall vertically. Floating support units arranged on the support platform can adaptively conform to the uneven bottom surface of the goods to provide support. After loading the goods, the lifting mechanism lowers the support platform to reduce the center of gravity of the entire machine. The walking platform transfers the goods to the unloading station. Simultaneously, the leveling unit uniformly levels the tops of all floating support units to avoid interference from high and low points on the lateral sliding of the goods. The rotating mechanism can directly drive the support platform and the goods to rotate and calibrate their orientation without repeatedly adjusting the position of the walking platform. After the angle is matched, the lifting mechanism raises the support platform to complete the unloading. Through multiple floating support units, it can adaptively adapt to various uneven bottom surfaces of goods, thereby achieving stable support for various irregularly shaped bottom goods.

[0018] 2. This invention is equipped with a fixed column, a floating support block, and an elastic element. After the walking platform moves to the picking area, the lifting mechanism raises the support platform, and the mounting box and the fixed column move upward synchronously. The goods press down on the floating support block and squeeze the elastic element. The elastic element generates elastic force to lift the floating support block to fit the bottom surface of the goods. After being transferred to the unloading position, the synchronous leveling unit presses down on the floating support block to complete the top surface leveling, which facilitates the horizontal unloading of goods. After unloading is completed, the synchronous leveling unit removes the external force, and the elastic element rebounds to drive the floating support block to reset. The elastic element outputs lifting force in real time to adapt to the bottom surface of the goods, thereby realizing automatic matching of the bottom surface of goods with different degrees of concavity and convexity.

[0019] 3. In this invention, the connecting plate and two magnetic rings allow the walking platform to transport goods to the unloading station. Each group of synchronous leveling units works simultaneously. The two magnetic rings, respectively mounted on the bracket and guide rod, generate a repulsive magnetic force. This repulsive force drives the guide rod downwards, and the guide rod, via the connecting plate, causes the floating support blocks to descend synchronously. This unifies the top surface height of all floating support units, eliminating height differences at support points and forming a flat support surface. It avoids obstructing the lateral movement of goods due to varying heights. The repulsive force generated by the two magnetic rings in the synchronous leveling unit synchronously controls the height of the floating support blocks, thus forming a flat, unprotruding support surface, facilitating the horizontal unloading of goods. Attached Figure Description

[0020] Figure 1 This is a perspective view of a lifting and rotating device for loading and unloading goods according to the present invention.

[0021] Figure 2 This is a perspective sectional view of a lifting and rotating device for loading and unloading goods according to the present invention.

[0022] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0023] Figure 4 This is a perspective view of the support frame, floating support unit, and synchronous leveling unit in a cargo loading and unloading lifting and rotating device according to the present invention.

[0024] Figure 5 This is a three-dimensional sectional view of the floating support unit in a lifting and rotating device for loading and unloading goods according to the present invention.

[0025] Figure 6 This is a perspective view of a floating support block, connecting plate, magnetic ring, and buffer pad of a lifting and rotating device for loading and unloading goods according to the present invention.

[0026] Figure 7 This is an exploded view of the fixed column, floating support block, and elastic element in a lifting and rotating device for loading and unloading cargo according to the present invention.

[0027] Figure 8 This is a perspective view of the mounting box, fixed cylinder, lifting column, inclined support assembly and lifting drive assembly in a cargo loading and unloading lifting and rotating device of the present invention.

[0028] Figure 9 This is a perspective view of the lifting column, rotating ring, support ring, turntable, and rotation drive assembly in a cargo loading and unloading lifting and rotating device according to the present invention.

[0029] Figure 10 This is a perspective view of the lifting column and lifting drive assembly in a lifting and rotating device for loading and unloading goods according to the present invention.

[0030] Figure 11This is a perspective view of the lifting column, turntable, and rotation drive assembly in a cargo loading and unloading lifting and rotating device according to the present invention.

[0031] The diagram is labeled as follows: 1. Walking platform; 2. Support platform; 21. Mounting box; 211. Bracket; 22. Floating support unit; 221. Fixed column; 2211. Slide groove; 222. Floating support block; 2221. Limiting pin; 223. Elastic element; 23. Synchronous flushing unit; 231. Connecting plate; 2311. Guide rod; 232. Magnetic ring; 233. Buffer pad; 3. Lifting mechanism; 31. Fixed cylinder; 32. Lifting column; 33. Inclined support assembly; 331. Rotating ring; 332. Support ring; 34. Lifting drive assembly; 341. Lead screw; 342. First rotary actuator; 343. Worm gear transmission component; 4. Rotating mechanism; 41. Turntable; 42. Rotary drive assembly; 421. Second rotary actuator; 422. Driving gear; 423. Driven gear. Detailed Implementation

[0032] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0033] Reference Figures 1 to 11 As shown: A lifting and rotating device for loading and unloading goods includes a traveling platform 1, a support platform 2, a lifting mechanism 3, and a rotating mechanism 4. The support platform 2 includes a mounting box 21, multiple floating support units 22, and multiple synchronous leveling units 23. The mounting box 21 is horizontally positioned above the traveling platform 1, and multiple supports 211 are arrayed within the mounting box 21. The multiple floating support units 22 are arranged in a rectangular array on the mounting box 21. The floating support units 22 are used to adaptively match the bottom shape of the goods. Each floating support unit 22 corresponds to a synchronous leveling unit 23, which is mounted on the supports 211. The synchronous leveling unit 23 is used to control the tops of the multiple floating support units 22 to be on the same plane. The lifting mechanism 3 is mounted on the traveling platform 1 and is used to drive the support platform 2 to rise and fall vertically. The rotating mechanism 4 is used to drive the support platform 2 to rotate as a whole.

[0034] The traveling platform 1 moves to the cargo stacking position, the lifting mechanism 3 is activated, driving the support platform 2 to rise upwards. The floating support units 22, upon contacting the cargo's bottom surface, adaptively conform to the cargo's uneven shape, stably supporting the cargo. After loading, the lifting mechanism 3 slightly lowers the support platform 2, reducing the overall center of gravity, allowing the traveling platform 1 to transfer the cargo to the unloading point. Upon arrival at the workstation, the leveling unit 23 works simultaneously, uniformly adjusting the tops of all floating support units 22 to the same horizontal plane, eliminating interference from local protruding support points on lateral unloading. The rotating mechanism 4 then activates, directly rotating the support platform 2 and the cargo to calibrate their orientation, eliminating the need for multiple adjustments to the traveling platform 1's angle. Once the cargo angle matches the unloading position, the lifting mechanism 3 raises the support platform 2 again to complete unloading. Through multiple floating support units 22 adaptively adapting to various uneven cargo surfaces, stable support for various irregularly shaped cargoes is achieved.

[0035] Reference Figure 4 and Figure 5 As shown: The floating support unit 22 includes a fixed column 221 and a floating support block 222; the fixed column 221 is vertically installed on the top of the mounting box 21, and the top of the fixed column 221 is provided with a mounting groove, and an elastic element 223, which is a compression spring, is provided in the mounting groove to provide an upward elastic force to the floating support block 222; the floating support block 222 is sleeved on the upper part of the fixed column 221.

[0036] The traveling platform 1 moves to the picking area, the lifting mechanism 3 raises the support platform 2, and the mounting box 21 moves upward simultaneously. The fixed column 221 installed on the top of the mounting box 21 then approaches the bottom of the goods. The goods press down on the floating support block 222, and the floating support block 222 slides downward along the fixed column 221, squeezing the elastic element 223. The elastic element 223 generates a reverse elastic force to continuously lift the floating support block 222, so that the floating support block 222 always conforms to the irregular contour of the bottom of the goods to complete the bearing. After the traveling platform 1 carries the goods to the unloading point, the synchronous leveling unit 23 applies a downward force to each group of floating support blocks 222, adjusting the top of all floating support blocks 222 to the same horizontal plane to avoid uneven support points from hindering the lateral push of the goods. After the unloading operation is completed, the synchronous leveling unit 23 releases the external force applied to the floating support block 222, and the compressed elastic element 223 rebounds, pushing the floating support block 222 to slide upward along the fixed column 221 to reset. The elastic element 223 outputs lifting force in real time to adapt to the bottom surface of the cargo, thereby achieving automatic matching of cargo bottom surfaces with different degrees of concavity and convexity.

[0037] Reference Figure 3 , Figure 4 and Figure 6As shown: The synchronous leveling unit 23 includes a connecting plate 231 and two magnetic rings 232; the connecting plate 231 is connected to the floating support unit 22, and a guide rod 2311 that is slidably connected to the bracket 211 is provided on the connecting plate 231; the two magnetic rings 232 are respectively provided on the bracket 211 and the guide rod 2311, and a repulsive force is generated between the two magnetic rings 232.

[0038] The connecting plate 231 is connected to the floating support block 222 in the floating support unit 22.

[0039] The traveling platform 1 carries the goods to the unloading station. All synchronous leveling units 23 operate synchronously. The two magnetic rings 232 on the support 211 and guide rod 2311 continuously generate repulsive magnetic force. The repulsive force of the magnetic rings 232 pushes the guide rod 2311 downward. The guide rod 2311 drives the floating support block 222 downward through the connecting plate 231, so that the top surface of each set of floating support units 22 is at the same height and at the lowest point, eliminating the height difference between support points. The flat support surface without height difference will not obstruct the lateral movement of goods. The height of the floating support block 222 is synchronously controlled by the repulsive force generated by the two magnetic rings 232 in the synchronous leveling unit 23, thereby forming a flat support surface without protrusions, which facilitates the horizontal pushing and unloading of goods.

[0040] Reference Figure 6 As shown: one of the two magnetic rings 232 is an electromagnetic ring, and the other magnetic ring 232 is a permanent magnet ring. The magnitude of the repulsive force between the two magnetic rings 232 is adjusted by controlling the energization state of the electromagnetic ring.

[0041] During the process of carrying goods and completing material picking and transfer, the electromagnetic ring remains de-energized, and there is no repulsive force output between the electromagnetic ring and the permanent magnet ring. The floating support block 222 can float freely up and down by relying on the elastic element 223, conforming to the bottom contour of the goods. When preparing for lateral unloading, the electromagnetic ring is energized, and a repulsive force is generated between the energized electromagnetic ring and the permanent magnet ring. The repulsive force acts on the guide rod 2311 and is transmitted to the connecting plate 231 through the guide rod 2311. The connecting plate 231 synchronously drives the floating support block 222 to move down. Multiple sets of synchronous leveling units 23 apply forces synchronously to uniformly adjust the top surface of all floating support blocks 222 to the same height. During the adjustment of the orientation of the goods by the rotating mechanism 4, the electromagnetic ring is continuously energized to maintain a stable repulsive force, and the support surface always remains flat. After unloading is completed, the power supply of the electromagnetic ring is cut off, the repulsive force of the magnetic ring 232 disappears, and the elastic element 223 pushes the floating support block 222 to reset. By switching whether the energized electromagnetic ring is on or off, the presence or absence of the repulsive force of the magnetic ring 232 can be controlled, thereby allowing the floating support unit 22 to switch between two working states in stages: adaptive bearing and flush unloading.

[0042] Reference Figure 6As shown: buffer pads 233 are provided on both the upper and lower sides of the connecting plate 231.

[0043] When the traveling platform 1 carries the goods to the unloading station, the energized electromagnetic ring generates a repulsive force with the permanent magnet ring. This repulsive force is transmitted to the guide rod 2311, which drives the connecting plate 231 to move downwards. When the connecting plate 231 descends to the position of the support 211, the buffer pad 233 on the lower side of the connecting plate 231 contacts the support 211 first, weakening the impact load generated by the collision between the connecting plate 231 and the support 211. After unloading, the power supply to the energized electromagnetic ring is cut off, the repulsive force between the magnetic rings 232 disappears, and the elastic element 223 pushes the floating support block 222, causing the connecting plate 231 to return to its original position. When the connecting plate 231 moves upwards and approaches the mounting box 21, the buffer pad 233 on the upper side of the connecting plate 231 contacts the mounting box 21, buffering the impact force of the upward movement of the connecting plate 231. The buffer pad 233 absorbs the impact load generated by the reciprocating motion of the connecting plate 231, thereby reducing the vibration generated during equipment operation.

[0044] Reference Figure 5 and Figure 7 As shown: A sliding groove 2211 is provided on the outer circumferential surface of the fixed column 221 along the axial direction. A limiting pin 2221 is provided on the floating support block 222. The limiting pin 2221 is embedded in the sliding groove 2211 and slides along the axial direction of the sliding groove 2211.

[0045] The traveling platform 1 is transported to the picking area. The lifting mechanism 3 raises the support platform 2. The fixed column 221 moves upward synchronously with the mounting box 21 and contacts the bottom surface of the goods. The weight of the goods presses down on the floating support block 222. The floating support block 222 slides down along the outer wall of the fixed column 221. The limiting pin 2221 on the floating support block 222 moves along the slide groove 2211. The slide groove 2211 restricts the radial displacement of the limiting pin 2221, so that the floating support block 222 can only move vertically along the fixed column 221 and will not generate circumferential movement. When the elastic element 223 is twisted, it is subjected to uniform force after being compressed, and stably outputs levitation force to conform to the bottom contour of the goods. When it is transferred to the unloading station, the synchronous leveling unit 23 adjusts the height of each group of floating support blocks 222 in a unified manner. The limiting pin 2221 limits the lifting posture of the floating support blocks 222 throughout the process. Therefore, each floating support block 222 maintains a fixed distance and there will be no mutual contact or interference. This prevents adjacent parts from abutting each other after the floating support blocks 222 are twisted, and ensures that the lifting action of the floating support blocks 222 is smooth.

[0046] Reference Figure 2 and Figure 8As shown: The lifting mechanism 3 includes a fixed cylinder 31, a lifting column 32, an inclined support assembly 33, and a lifting drive assembly 34; the fixed cylinder 31 is slidably connected to the lifting column 32 on the same axis; the inclined support assembly 33 is disposed at the upper end of the lifting column 32; the lifting drive assembly 34 is used to drive the lifting column 32 to reciprocate up and down along the axial direction.

[0047] When the walking platform 1 reaches the material picking position, the lifting drive component 34 outputs power, driving the lifting column 32 to slide upward along the axis of the fixed cylinder 31. Simultaneously, the inclined support component 33 at the top of the lifting column 32 moves upward, lifting the entire support platform 2. The floating support unit 22 then contacts the cargo to provide support. After the cargo is loaded, the lifting drive component 34 drives the lifting column 32 downward, lowering the center of gravity of the entire machine and the cargo. The walking platform 1 then carries the cargo to the unloading point. The rotating mechanism 4 starts to adjust the cargo placement angle. During the rotation of the support platform 2, the inclined support component 33 continuously bears the load of the support platform 2, maintaining its horizontal state. After the cargo angle matches the work position, the lifting drive component 34 again drives the lifting column 32 to lift vertically, delivering the cargo to the unloading height. Throughout the lifting process, the fixed cylinder 31 and the lifting column 32 slide coaxially, continuously constraining the movement trajectory of the lifting column 32 and limiting its lateral deviation. The support platform 2 maintains a stable posture throughout the lifting and rotation process, effectively preventing lateral tilting of the lifting column 32 and continuously maintaining the horizontal load-bearing state of the support platform 2.

[0048] Reference Figure 8 and Figure 9 As shown: The inclined support assembly 33 includes a rotating ring 331 and a support ring 332 arranged coaxially; the rotating ring 331 has a first inclined surface with an angle of 45 degrees with the axis; the support ring 332 has a second inclined surface that corresponds to and fits into the first inclined surface.

[0049] The rotating ring 331 is coaxially arranged with the lifting column 32.

[0050] When the walking platform 1 reaches the material picking position, the lifting drive component 34 drives the lifting column 32 to move upward. The rotating ring 331, which is coaxially arranged with the lifting column 32, rises synchronously. The first inclined surface of the rotating ring 331 at a 45-degree angle is in close contact with the second inclined surface of the support ring 332. The support ring 332 bears the vertical load transferred from the support platform 2 and the goods. The pressure is distributed and transmitted to the lifting column 32 through the two sets of contacting inclined surfaces. After the goods are transferred to the unloading station, the rotating mechanism 4 starts to drive the support platform 2 to rotate. The rotating ring 331 rotates synchronously with the turntable 41. During the rotation, the first inclined surface and the second inclined surface always remain in contact and there will be no gap separation. The load can be continuously and stably transmitted. At any rotation angle, the rotating ring 331 can contact the support ring 332 at all positions to transmit force. There will be no local suspension or loss of support. Thus, when the rotating ring 331 rotates with the turntable 41, all areas of the rotating ring 331 can continuously provide a uniform upward support force to the support ring 332.

[0051] Reference Figure 2 , Figure 8 and Figure 10 As shown: The lifting drive assembly 34 includes a lead screw 341, a first rotary driver 342, and a worm gear transmission component 343; the lead screw 341 is threadedly connected to the lifting column 32; the first rotary driver 342 is used to drive the lead screw 341 to rotate; the worm gear transmission component 343 uses its self-locking characteristic to prevent the lead screw 341 from rotating in the opposite direction.

[0052] During material handling, the first rotary drive 342 outputs rotational power, which is transmitted unidirectionally to the lead screw 341 via the worm gear transmission 343. After the lead screw 341 rotates, it drives the lifting column 32 to rise along the fixed cylinder 31 via threaded engagement, and the support platform 2 moves upward simultaneously to support the goods. After unloading, the first rotary drive 342 reverses its rotation, and the worm gear transmission 343 transmits reverse power unidirectionally, causing the lead screw 341 to rotate in the opposite direction, pulling the lifting column 32 downward. The worm gear transmission 343 only transmits power in one direction, and the lead screw 341 does not experience the reverse force from the lifting column 32 or the weight of the goods, thus rotating. During the rotation of the support platform 2, the lead screw 341 remains locked, and the lifting height does not change independently. The worm gear transmission 343 transmits power unidirectionally to lock the lead screw 341, thereby ensuring that the lifting column 32 does not slide down due to the weight of the goods after it stops moving, maintaining a constant lifting height of the support platform 2.

[0053] Reference Figure 2 , Figure 9 and Figure 11 As shown: The rotating mechanism 4 includes a turntable 41 and a rotating drive assembly 42; the turntable 41 is connected to the middle of the mounting box 21; the rotating drive assembly 42 is used to drive the turntable 41 to rotate.

[0054] The turntable 41 is coaxially arranged with the lifting column 32, and the top of the turntable 41 is rotatably connected to the lifting column 32. The rotary drive assembly 42 includes a second rotary driver 421, a drive gear 422, and a driven gear 423. The second rotary driver 421 is arranged on the lifting column 32. The drive gear 422 is connected to the output end of the second rotary driver 421. The driven gear 423 is coaxially connected with the turntable 41. The drive gear 422 and the driven gear 423 are meshed and connected for transmission.

[0055] The second rotary drive 421 starts and outputs torque, driving the drive gear 422 to rotate synchronously. The drive gear 422 meshes with the driven gear 423, driving the coaxially connected turntable 41 to rotate. The turntable 41 drives the centrally connected support platform 2 and the cargo to rotate synchronously. The turntable 41 and the lifting column 32 are arranged coaxially. During the rotation, the lifting column 32 does not rotate with the turntable 41. The inclined support assembly 33 continuously provides upward support force to the support platform 2. After the cargo angle is adjusted to the correct position, the second rotary drive 421 is turned off. The gear meshing clearance limits the large-scale rotation of the turntable 41. The lifting mechanism 3 cooperates to complete the unloading of the cargo. The turntable 41 and the lifting column 32 rotate independently on the same axis to achieve in-situ angle adjustment of the cargo, thus eliminating the need to move the traveling platform 1 to calibrate the cargo orientation and reducing the need for repeated alignment steps of the entire vehicle.

[0056] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A lifting and rotating device for loading and unloading goods, characterized in that, It includes a walking platform (1), a support platform (2), a lifting mechanism (3), and a rotating mechanism (4); The support platform (2) includes a mounting box (21), multiple floating support units (22) and multiple synchronous leveling units (23). The mounting box (21) is horizontally positioned above the walking platform (1), and multiple supports (211) are arrayed inside the mounting box (21). The multiple floating support units (22) are arranged in a rectangular array on the mounting box (21). The floating support units (22) are used to adaptively match the bottom shape of the goods. Each floating support unit (22) corresponds to a synchronous leveling unit (23). The synchronous leveling unit (23) is set on the support (211). The synchronous leveling unit (23) is used to control the tops of the multiple floating support units (22) to be on the same plane. The lifting mechanism (3) is mounted on the walking platform (1), and the lifting mechanism (3) is used to drive the support platform (2) to move up and down in the vertical direction; The rotating mechanism (4) is used to drive the support platform (2) to rotate as a whole.

2. The lifting and rotating device for loading and unloading goods according to claim 1, characterized in that, The floating support unit (22) includes a fixed column (221) and a floating support block (222). The fixed column (221) is vertically installed on the top of the mounting box (21). The top of the fixed column (221) is provided with a mounting groove, and an elastic element (223) is provided in the mounting groove to provide an upward elastic force to the floating support block (222). The floating support block (222) is fitted onto the upper part of the fixed column (221).

3. The lifting and rotating device for loading and unloading goods according to claim 1, characterized in that, The synchronous leveling unit (23) includes a connecting plate (231) and two magnetic rings (232). The connecting plate (231) is connected to the floating support unit (22), and the connecting plate (231) is provided with a guide rod (2311) that is slidably connected to the bracket (211). The two magnetic rings (232) are respectively disposed on the bracket (211) and the guide rod (2311), and a repulsive force is generated between the two magnetic rings (232).

4. A lifting and rotating device for loading and unloading goods according to claim 3, characterized in that, One of the two magnetic rings (232) is an electromagnetic ring, and the other magnetic ring (232) is a permanent magnet ring. The magnitude of the repulsive force between the two magnetic rings (232) is adjusted by controlling the energization state of the electromagnetic ring.

5. A lifting and rotating device for loading and unloading goods according to claim 3, characterized in that, The connecting plate (231) is provided with buffer pads (233) on both the upper and lower sides.

6. A lifting and rotating device for loading and unloading goods according to claim 2, characterized in that, The outer circumferential surface of the fixed column (221) is provided with a sliding groove (2211) along the axial direction. The floating support block (222) is provided with a limiting pin (2221). The limiting pin (2221) is embedded in the sliding groove (2211) and slides along the axial direction of the sliding groove (2211) for limitation.

7. A lifting and rotating device for loading and unloading goods according to claim 1, characterized in that, The lifting mechanism (3) includes a fixed cylinder (31), a lifting column (32), an inclined support assembly (33), and a lifting drive assembly (34). The fixed cylinder (31) and the lifting column (32) are slidably connected coaxially; The inclined support assembly (33) is disposed at the upper end of the lifting column (32); The lifting drive assembly (34) is used to drive the lifting column (32) to reciprocate up and down along the axial direction.

8. A lifting and rotating device for loading and unloading goods according to claim 7, characterized in that, The inclined support assembly (33) includes a rotating ring (331) and a support ring (332) arranged coaxially. The rotating ring (331) has a first inclined surface with an angle of 45 degrees to the axis; The support ring (332) has a second inclined surface that corresponds to and fits into the first inclined surface.

9. A lifting and rotating device for loading and unloading goods according to claim 7, characterized in that, The lifting drive assembly (34) includes a lead screw (341), a first rotary driver (342), and a worm gear transmission component (343). The lead screw (341) is threadedly engaged with the lifting column (32) for transmission. The first rotary driver (342) is used to drive the lead screw (341) to rotate; The worm gear transmission (343) uses its self-locking property to prevent the lead screw (341) from rotating in the opposite direction.

10. A lifting and rotating device for loading and unloading goods according to claim 1, characterized in that, The rotating mechanism (4) includes a turntable (41) and a rotating drive assembly (42). The turntable (41) is connected to the middle of the mounting box (21); The rotary drive assembly (42) is used to drive the turntable (41) to rotate.

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