A cargo loading device for a mobile platform

Abstract

The present invention discloses a cargo loading device for a mobile platform, which includes a crossbeam bracket horizontally installed on the mobile platform, a lifting mechanism connected to the crossbeam bracket, and a handling mechanism connected to the lifting mechanism through a floating buffer mechanism. The floating buffer mechanism includes a first platform and a second platform connected to the lower side of the first platform through a plurality of longitudinally arranged floating structures. The upper side of the first platform is connected to a first mounting plate, and the lower side of the second platform is connected to a second mounting plate. The floating structure includes a floating shaft, an elastic reset member, a first universal rotating assembly, and a second universal rotating assembly. One of the first universal rotating assembly and the second universal rotating assembly is axially fixedly connected to one end of the floating shaft, and the other is axially telescopically connected to the other end of the floating shaft. This cargo loading device for a mobile platform solves the technical problem that the existing technical solution is prone to failure of the delivery platform after being impacted.

Description

Technical Field

[0001] The present invention relates to the field of automatic loading, and particularly to a cargo loading device for a mobile platform. Background Art

[0002] Currently, in production industries such as chemical engineering and grain and oil, automatic loading robots are generally used for handling, palletizing, truck loading and other operations. For example, the prior art discloses a patent for invention named a truck loading machine (publication number: CN114803558A), which includes a track seat, a moving vehicle mechanism and a material palletizing and truck loading mechanism. The moving vehicle assembly is movably installed on the track seat, and the lifting assembly is installed on the moving vehicle assembly. The moving vehicle assembly drives the lifting assembly and the material palletizing and truck loading mechanism to move horizontally. The material palletizing and truck loading mechanism moves up and down integrally under the drive of the lifting hook of the lifting assembly. However, the goods in this technical solution are likely to fall off the fixture device under the action of inertia during the horizontal movement, reducing the working efficiency.

[0003] In view of the above technical problems, the prior art discloses a patent for invention named a floating connector (publication number: CN102013597B), which includes a fixed shaft, a front fixing plate, a rear fixing plate and a socket body arranged between the front and rear fixing plates. A floating hole larger than the fixed shaft is penetrated through the socket body. The two ends of the fixed shaft are respectively fixedly connected to the front and rear fixing plates. A spring is sleeved on the fixed shaft, and the spring is arranged between the socket body and the rear fixing plate. This technical solution can realize the floating connection and the reset function after floating between the structure connected to the front and rear fixing plates and the structure connected to the socket body, so as to buffer the inertial effect. However, this technical solution must set three components, namely the front fixing plate, the rear fixing plate and the socket body, at the same time to achieve the floating connection effect, with a complex structure. Moreover, when the socket body floats and deflects relative to the front and rear fixing plates, it constantly collides rigidly with the fixed shaft, easily leading to malfunctions of the delivery platform. Summary of the Invention

[0004] Aiming at the deficiencies in the prior art, the present invention provides a cargo loading device for a mobile platform, which solves the technical problem that the prior art solution is prone to delivery platform malfunctions after being impacted.

[0005] The technical solution of the present invention is as follows:

[0006] A cargo loading device for a mobile platform, comprising a crossbeam bracket horizontally installed on a mobile platform that can move back and forth, a lifting mechanism connected to the crossbeam bracket through a lateral movement mechanism, and a handling mechanism connected to the lifting mechanism through a floating buffer mechanism. The floating buffer mechanism includes a first platform and a second platform connected to the lower side of the first platform through a plurality of longitudinally arranged floating structures. The upper side of the first platform is connected to a first mounting plate provided at the lower end of the lifting mechanism, and the lower side of the second platform is connected to a second mounting plate provided at the upper end of the handling mechanism. The floating structure includes a longitudinally arranged floating shaft, an elastic reset member for keeping the floating shaft longitudinally arranged, a first universal rotating assembly provided on the first platform, and a second universal rotating assembly provided on the second platform. One of the first universal rotating assembly and the second universal rotating assembly is axially fixedly connected to one end of the floating shaft, and the other is axially telescopically connected to the other end of the floating shaft.

[0007] Preferably, a first connection channel is longitudinally penetrated through the middle of the first rotating assembly, the upper end of the floating shaft extends into the interior of the first connection channel and is axially fixedly connected to the first connection channel. A second connection channel is longitudinally penetrated through the middle of the second rotating assembly, and the lower end of the floating shaft extends into the interior of the second connection channel and is axially telescopically connected to the second connection channel.

[0008] Preferably, a first assembly channel for installing the first rotating assembly is longitudinally penetrated through the first platform. The first universal rotating assembly includes a first connecting member fixedly connected in the first assembly channel and a first rotating member ball-jointed to the first connecting member. The first connection channel is provided on the first rotating member. A second assembly channel is longitudinally penetrated through the second platform. The second universal rotating assembly includes a second connecting member fixedly connected in the second assembly channel and a second rotating member ball-jointed to the second connecting member. The second connection channel is provided on the second rotating member.

[0009] Preferably, a first hinge channel is longitudinally penetrated through the middle of the first connecting member, the outer wall of the first hinge channel is set as an inwardly concave spherical surface structure, and the outer wall of the first rotating member is set as an outwardly convex spherical surface structure that matches the outer wall of the first hinge channel. A second hinge channel is longitudinally penetrated through the middle of the second connecting member, the outer wall of the second hinge channel is set as an inwardly concave spherical surface structure, and the outer wall of the second rotating member is set as an outwardly convex spherical surface structure that matches the outer wall of the second hinge channel.

[0010] Preferably, the upper and lower ends of the first rotating member protrude from the upper and lower ends of the first connecting member respectively, the upper and lower ends of the second rotating member protrude from the upper and lower ends of the second connecting member respectively, a first limiting member and a third limiting member protruding from the outer wall of the floating shaft are arranged at the upper end of the floating shaft, and a second limiting member protruding from the outer wall of the floating shaft is arranged at the lower end. The first rotating member is axially limited between the first limiting member and the third limiting member. A first annular boss is inwardly protruded from the lower part of the outer wall of the first assembly channel. A first limiting cover covering the first assembly channel is arranged on the upper side of the first platform. The outer periphery of the first limiting cover is fixedly connected to the first platform. A first accommodating bin is recessed upward from the bottom surface in the middle of the first limiting cover. A second annular boss extending downward from the lower end of the outer wall of the first accommodating bin and extending into the upper end of the first assembly channel is arranged. The first connecting member is axially limited between the first annular boss and the second annular boss. The first limiting member is located in the first accommodating bin. The inner diameters of the first annular boss and the second annular boss are larger than the inner diameter of the first connecting member and smaller than the outer diameter of the first connecting member.

[0011] Preferably, the elastic reset member is sleeved outside the floating shaft, and the upper end of the elastic reset member abuts against the bottom surface of the first platform, and the lower end of the elastic reset member abuts against the top surface of the second platform.

[0012] Preferably, a monitoring structure for detecting the approach or separation of the second platform from the first platform is longitudinally arranged between the first platform and the second platform. The monitoring structure includes a longitudinally arranged intermediate shaft, a monitoring base arranged on the first platform, a monitoring member arranged on the monitoring base, and a third universal rotating assembly arranged on the second platform. A fourth connection channel is longitudinally penetrated through the first platform. The upper end of the intermediate shaft extends into the fourth connection channel and is axially telescopically connected to the fourth connection channel. The lower end of the intermediate shaft is axially fixedly connected to the third universal rotating assembly. The monitoring member is used for detecting the approach or separation of the upper end of the intermediate shaft from the first platform.

[0013] Preferably, a fifth limiting member protruding from the outer wall of the intermediate shaft is arranged at the upper end of the intermediate shaft, and a fourth limiting member and a sixth limiting member protruding from the outer wall of the intermediate shaft are arranged at the lower end. The third universal rotating assembly is axially limited between the fourth limiting member and the sixth limiting member. The monitoring base is arranged on the upper side of the first platform. A first telescopic channel communicating with the fourth connection channel is longitudinally arranged on the monitoring base. The upper end of the intermediate shaft and the fifth limiting member can axially move inside the first telescopic channel. A monitoring channel communicating with the first telescopic channel is transversely penetrated through the monitoring base. The monitoring member is installed on the detection channel.

[0014] Preferably, four floating structures are provided. The four floating structures are arranged in a matrix and are respectively disposed near the outer peripheries of the first platform and the second platform. One side of the first platform arranged along the length direction of the crossbeam support extends outward to form a first extended platform. One side of the second platform arranged along the length direction of the crossbeam support extends outward to form a second extended platform corresponding to the first extended platform. A swing structure is arranged between the first extended platform and the second extended platform. The swing structure includes a longitudinally arranged swing shaft, a swing plate disposed on the upper side of the first platform, and a fourth universal rotating assembly disposed on the second platform. The upper end of the swing shaft is rotatably connected to the swing plate through a hinge shaft arranged along the length direction of the crossbeam support. The lower end of the swing shaft is axially telescopically connected to the fourth universal rotating assembly.

[0015] Preferably, a floating dust-proof plate arranged between the outer sides of the first platform and the second platform is connected to the outer periphery of the first platform. A monitoring dust-proof plate is provided at the top of the monitoring base. A swing dust-proof plate is provided at the top of the swing plate. A plurality of longitudinally arranged mounting columns are provided on the upper side of the first platform. The height of the mounting columns is greater than the heights of the monitoring base, the swing plate, and the first limiting cover. A column body channel that communicates with the first channel on the first platform and the second channel on the first mounting plate is longitudinally penetrated through the mounting columns. The first platform is fixedly connected to the first mounting plate by a first fastener extending into the first channel, the second channel, and the column body channel. A third channel is longitudinally penetrated through the second platform. A fourth channel corresponding to the third channel is provided on the second mounting plate. The second platform is fixedly connected to the second mounting plate by a second fastener extending into the third channel and the fourth channel. A second telescopic channel for the lower end of the floating shaft and the second limiting member to axially move therein and a third telescopic channel for the lower end of the swing shaft to axially move therein are longitudinally penetrated through the second mounting plate. An upper portion of the outer wall of the second assembly channel protrudes inward to form a third annular boss. A limiting retaining ring abutting against the second mounting plate is provided at the lower end of the second assembly channel. The second connecting member is axially limited between the third annular boss and the limiting retaining ring. The inner diameters of the third annular boss and the limiting retaining ring are greater than the inner diameter of the second connecting member and less than the outer diameter of the second connecting member. A third assembly channel is longitudinally penetrated through the middle of the second platform. A fourth annular boss protrudes upward around the third assembly channel on the upper side of the second platform. A limiting plate is provided on the lower side of the second platform. The outer periphery of the limiting plate is fixedly connected to the lower side of the second platform. An annular concave is recessed downward from the top surface in the middle of the limiting plate. The third universal rotating assembly is axially limited between the fourth annular boss and the annular concave.

[0016] The goods loading device for a mobile platform disclosed by the present invention includes a crossbeam bracket horizontally installed on a mobile platform that can move back and forth, a lifting mechanism connected to the crossbeam bracket through a lateral movement mechanism, and a handling mechanism connected to the lifting mechanism through a floating buffer mechanism. This enables the handling mechanism to move horizontally back and forth along the mobile platform, move horizontally along the length direction of the crossbeam bracket through the lateral movement mechanism, move vertically up and down through the lifting mechanism, and float and deflect relative to the lifting mechanism through the floating buffer mechanism to buffer the inertial force during the horizontal movement of the goods, reduce the package dropping rate, and also facilitate the staff to freely drag the handling mechanism within a certain angle range to assist the goods loading device in loading and unloading goods. Under the action of the floating reset of the floating buffer mechanism, the relative position between the handling mechanism and the lifting mechanism is relatively fixed, facilitating the movement of the handling mechanism to the target position. The floating buffer mechanism includes a first platform and a second platform connected to the lower side of the first platform through a plurality of longitudinally arranged floating structures. The upper side of the first platform is connected to a first mounting plate provided at the lower end of the lifting mechanism, and the lower side of the second platform is connected to a second mounting plate provided at the upper end of the handling mechanism. The connection is stable and the assembly is convenient. Since only the first platform and the second platform are provided, compared with the structure that must have three components in the prior art, the structure is simplified. The floating structure includes a longitudinally arranged floating shaft, an elastic reset member for keeping the floating shaft longitudinally arranged, a first universal rotation assembly provided on the first platform, and a second universal rotation assembly provided on the second platform. One of the first universal rotation assembly and the second universal rotation assembly is axially fixedly connected to one end of the floating shaft, and the other is axially telescopically connected to the other end of the floating shaft, enabling the first platform and the second platform to freely float and deflect relative to the floating shaft respectively, with more flexible floating. The setting of the first universal rotation assembly and the second universal rotation assembly reduces the rigid collision between the floating shaft and the first platform or the second platform, thereby reducing noise, extending the service life, and preventing failures of the second platform or the placement platform such as the handling mechanism. When the handling mechanism descends to a placement plane such as the ground to place goods, the second platform can move upward under the upward supporting force of the handling mechanism, and the floating shaft expands and contracts relative to the first universal rotation assembly or the second universal rotation assembly to buffer the upward supporting force of the handling mechanism, enabling the goods loaded by the handling mechanism to be gently and slowly placed, protecting the structural integrity of the goods, and avoiding violent impacts.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention. Brief Description of the Drawings

[0018] The drawings described herein are used to provide a further understanding of the present invention, form a part of this application, and the illustrative embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation to the present invention. In the drawings:

[0019] Figure 1 The structural schematic diagram of the cargo loading device disclosed in an embodiment of the present invention.

[0020] Figure 2 The partial structural schematic diagram of the cargo loading device disclosed in an embodiment of the present invention.

[0021] Figure 3 The structural schematic diagram of the floating buffer mechanism, the first mounting plate and the second mounting plate disclosed in an embodiment of the present invention.

[0022] Figure 4 The structural schematic diagram of the floating buffer mechanism disclosed in an embodiment of the present invention.

[0023] Figures 5-6 The structural exploded view of the floating buffer mechanism disclosed in an embodiment of the present invention.

[0024] Figure 7 The cross-sectional view of the floating buffer mechanism and the first mounting plate disclosed in an embodiment of the present invention.

[0025] Figure 8 The structural exploded view of the first universal rotating assembly disclosed in an embodiment of the present invention.

[0026] Figure 9 The cross-sectional view of the monitoring structure disclosed in an embodiment of the present invention.

[0027] Figure 10 The cross-sectional view of the swing structure disclosed in an embodiment of the present invention.

[0028] Figure 11 The bottom view of the floating buffer mechanism and the second mounting plate disclosed in an embodiment of the present invention. Detailed implementation manners

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0031] In the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0033] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings understood by those of ordinary skill in the art to which the present invention pertains. The terms "first", "second" and similar terms used in the specification and claims of the present invention for patent application do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, the terms "a" or "an" and the like do not denote a quantity limitation, but mean that there is at least one.

[0034] Such as Figures 1-3As shown, as an embodiment of the present invention, a cargo loading device for a mobile platform is disclosed, which includes a crossbeam bracket 100 horizontally installed on a mobile platform 600 that can move back and forth, a lifting mechanism 300 connected to the crossbeam bracket 100 through a lateral movement mechanism 200, and a handling mechanism 500 connected to the lifting mechanism 300 through a floating buffer mechanism 400. The handling mechanism 500 can move back and forth horizontally along the mobile platform, move horizontally along the length direction of the crossbeam bracket 100 through the lateral movement mechanism 200, move up and down vertically through the lifting mechanism 300, and float and deflect relative to the lifting mechanism 300 through the floating buffer mechanism 400 to buffer the inertial force of the cargo during horizontal movement, reduce the package dropping rate, and also facilitate the staff to freely drag the handling mechanism 500 within a certain angle range to assist the cargo loading device in loading and unloading goods. Under the floating reset action of the floating buffer mechanism 400, the relative position between the handling mechanism 500 and the lifting mechanism 300 is relatively fixed, which is convenient for moving the handling mechanism 500 to the target position. The floating buffer mechanism 400 includes a first platform 1 and a second platform 2 connected to the lower side of the first platform 1 through a plurality of longitudinally arranged floating structures 3. The upper side of the first platform 1 is connected to a first mounting plate 301 provided at the lower end of the lifting mechanism 300, and the lower side of the second platform 2 is connected to a second mounting plate 501 provided at the upper end of the handling mechanism 500. The connection is stable and the assembly is convenient. Since only the first platform 1 and the second platform 2 are provided, compared with the structure that must have three components in the prior art, the structure is simplified. The floating structure 3 includes a longitudinally arranged floating shaft 33, an elastic reset member 34 for keeping the floating shaft 33 longitudinally arranged, a first universal rotation assembly 31 provided on the first platform 1, and a second universal rotation assembly 32 provided on the second platform 2. One of the first universal rotation assembly 31 and the second universal rotation assembly 32 is axially fixedly connected to one end of the floating shaft 33, and the other is axially telescopically connected to the other end of the floating shaft 33, so that the first platform 1 and the second platform 2 can freely float and deflect relative to the floating shaft 33 respectively, and the floating is more flexible. The setting of the first universal rotation assembly 31 and the second universal rotation assembly 32 reduces the rigid collision between the floating shaft 33 and the first platform 1 or the second platform 2, thereby reducing the noise, extending the service life, and avoiding failures of the second platform 2 or the placement platform such as the handling mechanism 500. When the handling mechanism 500 descends to a placement plane such as the ground, the tabletop, or the cargo to place the cargo, the second platform 2 can move upward under the upward supporting force of the handling mechanism 500, and the floating shaft 33 expands and contracts relative to the first universal rotation assembly 31 or the second universal rotation assembly 32 to buffer the upward supporting force of the handling mechanism 500, so that the cargo loaded by the handling mechanism 500 can be gently and slowly placed, protecting the structural integrity of the cargo and avoiding violent impacts.

[0035] As Figures 6-8As shown, in some specific embodiments, a first connection channel 3121 is longitudinally and penetratingly provided in the middle of the first rotating assembly 31. The upper end of the floating shaft 33 extends into the interior of the first connection channel 3121 and is axially and fixedly connected to the first connection channel 3121. A second connection channel 3221 is longitudinally and penetratingly provided in the middle of the second rotating assembly 32. The lower end of the floating shaft 33 extends into the interior of the second connection channel 3221 and is axially and telescopically connected to the second connection channel 3221. The arrangements of the first connection channel 3121 and the second connection channel 3221 facilitate the installation and positioning of the floating shaft 33. When the handling mechanism 500 descends to a placement plane such as the ground to deliver goods, the second platform 2 can move upward along the floating shaft 33 under the upward supporting force of the handling mechanism 500 to buffer the upward supporting force of the handling mechanism 500. In other embodiments, the upper end of the floating shaft 33 can also be axially and telescopically connected to the first connection channel 3121, and the lower end can be axially and fixedly connected to the second connection channel 3221.

[0036] As Figure 6 shown, in some specific embodiments, a first assembly channel 11 for installing the first rotating assembly 31 is longitudinally and penetratingly provided on the first platform 1. The first universal rotating assembly 31 includes a first connecting member 311 fixedly connected in the first assembly channel 11 and a first rotating member 312 ball-jointedly connected to the first connecting member 311. The first connection channel 3121 is provided on the first rotating member 312. The first rotating member 312 can drive the upper end of the floating shaft 33 to freely deflect circumferentially relative to the first connecting member 311, with a simple structure and convenient assembly. Similarly, a second assembly channel 21 is longitudinally and penetratingly provided on the second platform 2. The second universal rotating assembly 32 includes a second connecting member 321 fixedly connected in the second assembly channel 21 and a second rotating member 322 ball-jointedly connected to the second connecting member 321. The second connection channel 3221 is provided on the second rotating member 322. The second rotating member 322 can drive the lower end of the floating shaft 33 to freely deflect circumferentially relative to the second connecting member 321. Thus, the first platform 1 and the second platform 2 can flexibly float and deflect relative to the upper and lower ends of the floating shaft 33. Moreover, the first connecting member 311, the first rotating member 312, the second connecting member 321, and the second rotating member 322 are arranged as rigid structures, and have good stability in connection with the floating shaft 33. In other embodiments, the first universal rotating assembly 31 or the second universal rotating assembly 32 can also be arranged as a flexible structure or other universal rotating structures that can drive the floating shaft 33 to freely deflect.

[0037] As Figure 8As shown, in some specific embodiments, a first hinge channel 3111 is longitudinally provided through the middle of the first connecting member 311, and the outer wall of the first hinge channel 3111 is provided with an inwardly concave spherical structure. The outer wall of the first rotating member 312 is provided with an outwardly convex spherical structure that matches the outer wall of the first hinge channel 3111. Similarly, a second hinge channel 3211 is longitudinally provided through the middle of the second connecting member 321, and the outer wall of the second hinge channel 3211 is provided with an inwardly concave spherical structure. The outer wall of the second rotating member 322 is provided with an outwardly convex spherical structure that matches the outer wall of the second hinge channel 3211. The outer wall of the first rotating member 312 is in surface contact with the outer wall of the first hinge channel 3111, and the outer wall of the second rotating member 322 is in surface contact with the outer wall of the second hinge channel 3211, ensuring good connection stability.

[0038] As Figure 7As shown, in some specific embodiments, the upper and lower ends of the first rotating member 312 protrude from the upper and lower ends of the first connecting member 311 respectively, ensuring that when the first rotating member 312 freely deflects up and down in the circumferential direction relative to the first connecting member 311, the outer wall of the first rotating member 312 is always in surface contact with the first hinge channel 3111. The upper and lower ends of the second rotating member 322 protrude from the upper and lower ends of the second connecting member 321 respectively, ensuring that when the second rotating member 322 freely deflects up and down in the circumferential direction relative to the second connecting member 321, the outer wall of the second rotating member 322 is always in surface contact with the second hinge channel 3211, and the connection stability is good. The upper end of the floating shaft 33 is provided with a first limiting member 331 and a third limiting member 333 protruding from the outer wall of the floating shaft 33. The first rotating member 312 is axially limited between the first limiting member 331 and the third limiting member 333, preventing the upper end of the floating shaft 33 from axially telescoping relative to the first connection channel 3121 of the first rotating member 312. The lower end of the outer wall of the first assembly channel 11 protrudes inward to form a first annular boss 111. A first limiting cover 35 covering the first assembly channel 11 is provided on the upper side of the first platform 1. The outer periphery of the first limiting cover 35 is fixedly connected to the first platform 1. The middle of the first limiting cover 35 is recessed upward from the bottom surface to form a first receiving cavity 351. The lower end of the outer wall of the first receiving cavity 351 extends downward to form a second annular boss 352 extending into the upper end of the first assembly channel 11. The first connecting member 311 is axially limited between the first annular boss 111 and the second annular boss 352, preventing the first connecting member 311 from axially telescoping relative to the first assembly channel 11. The first limiting member 331 is located in the first receiving cavity 351. The inner diameter of the first receiving cavity 351 is larger than the outer diameter of the first limiting member 331. When the first rotating member 312 floats and deflects relative to the first connecting member 311, the first limiting member 331 deflects in the first receiving cavity 351. The outer wall of the second annular boss 352 and the outer wall of the first assembly channel 11 are set to be in a mutually matching shape, which also facilitates the assembly between the first limiting cover 35 and the first platform 1. In this embodiment, the outer wall of the second annular boss 352 and the outer wall of the first assembly channel 11 are set to be cylindrical surfaces, and the assembly can be carried out from multiple angles. The inner diameters of the first annular boss 111 and the second annular boss 352 are larger than the inner diameter of the first connecting member 311 and smaller than the outer diameter of the first connecting member 311, so that while axially limiting the first connecting member 311, sufficient accommodation space is reserved for the first limiting member 331 and the third limiting member 333 after floating deflection. The lower end of the floating shaft 33 is provided with a second limiting member 332 protruding from the outer wall of the floating shaft 33, which is used to prevent the second platform 2 from disconnecting from the floating shaft 33 and can limit the second platform 2 to axially telescoping between the second limiting member 332 and the third limiting member 333 on the floating shaft 33.In this embodiment, the first limiting member 331 is set as an end cover of the shaft end. A through hole is provided through the middle of the first limiting member 331. A connecting hole is recessed downward on the upper end surface of the floating shaft 33. The first limiting member 331 is fixedly connected to the floating shaft 33 by bolts and other fasteners extending into the through hole and the connecting hole, which is convenient for loading and unloading; the second limiting member 332 and the lower end of the floating shaft 33 are set as an integral structure, and the structure is more stable and firm; the third limiting member 333 is set as a snap ring that is tightly connected to an annular inner groove arranged near the upper end of the outer wall of the floating shaft 33. The structure is simple and convenient for loading and unloading.

[0039] In some specific embodiments, a third annular boss 211 protrudes inward from the upper part of the outer wall of the second assembly channel 21. A limiting retaining ring 26 that abuts against the second mounting plate 501 is provided at the lower end of the second assembly channel 21. The second connecting member 321 is axially limited between the third annular boss 211 and the limiting retaining ring 26 to prevent the second connecting member 321 from axially moving relative to the second assembly channel 21. The inner diameters of the third annular boss 211 and the limiting retaining ring 26 are larger than the inner diameter of the second connecting member 321 and smaller than the outer diameter of the second connecting member 321. Thus, while axially limiting the second connecting member 321, sufficient accommodation space is reserved for the lower end of the floating shaft 33 and the second limiting member 332 after floating deflection.

[0040] As Figure 8 shown, in some specific embodiments, the elastic reset member 34 is set as a rectangular spring with strong elastic force. The elastic reset member 34 is sleeved outside the floating shaft 33. The upper end of the elastic reset member 34 abuts against the bottom surface of the first platform 1, and the lower end of the elastic reset member 34 abuts against the top surface of the second platform 2. It is used for resetting after the second platform 2 floats and deflects relative to the first platform 1 to ensure that the relative position between the second platform 2 and the first platform 1 is relatively fixed. The structure is simple and the assembly is convenient.

[0041] As Figures 5-6As shown, in some specific embodiments, a monitoring structure 4 for detecting the approach or separation of the second platform 2 from the first platform 1 is longitudinally arranged between the first platform 1 and the second platform 2. The monitoring structure 4 includes a longitudinally arranged intermediate shaft 41, a monitoring base 42 provided on the first platform 1, a monitoring member 43 provided on the monitoring base 42, and a third universal rotating assembly 44 provided on the second platform 2. A fourth connection channel 12 is longitudinally penetrated through the first platform 1. The upper end of the intermediate shaft 41 extends into the interior of the fourth connection channel 12 and is axially telescopically connected to the fourth connection channel 12. The lower end of the intermediate shaft 41 is axially fixedly connected to the third universal rotating assembly 44, ensuring that the second platform 2 can float and deflect relative to the lower end of the intermediate shaft 41 through the third universal rotating assembly 44. The intermediate shaft 41 is used for connecting the first platform 1 and the second platform 2. When the second platform 2 moves upward along the floating shaft 33 under the action of the upward supporting force of the handling mechanism 500, the intermediate shaft 41 moves axially upward along the fourth connection channel 12 to buffer the upward supporting force of the handling mechanism 500, with a clever structural design. The monitoring member 43 is used to detect the approach or separation of the upper end of the intermediate shaft 41 from the first platform 1, so as to facilitate the control terminal to judge whether the handling mechanism 500 is currently in the state of placing goods on a placement plane such as the ground or in the transportation state of carrying goods, and to conveniently and accurately judge whether the handling mechanism 500 has been completely and stably placed on a placement plane such as the ground, which is beneficial to stacking goods smoothly and neatly.

[0042] As Figure 9As shown, in some specific embodiments, a fifth limiting member 412 protruding from the outer wall of the intermediate shaft 41 is arranged at the upper end of the intermediate shaft 41 to prevent the upper end of the intermediate shaft 41 from disconnecting from the first platform 1. A fourth limiting member 411 and a sixth limiting member (not shown in the figure) protruding from the outer wall of the intermediate shaft 41 are arranged at the lower end of the intermediate shaft 41. The third universal rotating assembly 44 is axially limited between the fourth limiting member 411 and the sixth limiting member to prevent axial telescopic movement of the lower end of the intermediate shaft 41 relative to the third universal rotating assembly 44. The monitoring base 42 is arranged on the upper side of the first platform 1. A first telescopic channel 421 communicating with the fourth connection channel 12 is longitudinally arranged on the monitoring base 42. The upper end of the intermediate shaft 41 and the fifth limiting member 412 can axially move inside the first telescopic channel 421. The inner diameter of the first telescopic channel 421 is larger than the inner diameter of the fourth connection channel 12. When the second platform 2 floats and deflects relative to the first platform 1, the upper end of the intermediate shaft 41 and the fifth limiting member 412 deflect inside the first telescopic channel 421. A monitoring channel 422 communicating with the first telescopic channel 421 is transversely arranged through the monitoring base 42. The monitoring member 43 is installed on the detection channel 422 to facilitate detection of the rise or fall of the intermediate shaft 41. In this embodiment, two monitoring channels 422 are arranged on the monitoring base 42. The two monitoring channels 422 are respectively arranged on the opposite sides of the monitoring base 42. Monitoring members 43 are respectively installed on the two monitoring channels 422. The monitoring ends of the two monitoring members 43 are arranged oppositely. The monitoring member 43 is set as a proximity sensor. By detecting the signal responses of the opposite sides of the upper end of the intermediate shaft 41 or the fifth limiting member 412 and the proximity sensor respectively, the deflection amplitude, angle, etc. between the intermediate shaft 41 and the second platform 2 and the first platform 1 can be detected.

[0043] In some specific embodiments, a third assembly channel 22 is longitudinally arranged through the middle of the second platform 2. The third universal rotating assembly 44 includes a third connecting member 441 fixedly connected in the third assembly channel 22 and a third rotating member 442 ball-jointed to the third connecting member 441. A third connection channel 4421 is longitudinally arranged through the middle of the third rotating member 442. The lower end of the intermediate shaft 41 is telescopically connected in the third connection channel 4421. The radius of the intermediate shaft 41 is larger than the radius of the floating shaft 33. A fourth annular boss 221 protruding upward is arranged around the third assembly channel 22 on the upper side of the second platform 2. A limiting plate 25 is arranged on the lower side of the second platform 2. The outer periphery of the limiting plate 25 is fixedly connected to the lower side of the second platform 2. An annular concave 251 is recessed downward from the top surface in the middle of the limiting plate 25. The third connecting member 441 is axially limited between the fourth annular boss 221 and the annular concave 251 to prevent axial movement of the third connecting member 441 relative to the third assembly channel 22.

[0044] As Figure 1 、 4, as shown in FIGS. 10, in some specific embodiments, four floating structures 3 are provided. The four floating structures 3 are arranged in a matrix and are respectively disposed near the outer peripheral edges of the first platform 1 and the second platform 2, so that the balance and stability of the connection are better. On one side of the first platform 1 arranged along the length direction of the crossbeam support 100, a first extended platform 13 is extended outward. On one side of the second platform 2 arranged along the length direction of the crossbeam support 100, a second extended platform 23 corresponding to the first extended platform 13 is extended outward. A swing structure 5 is arranged between the first extended platform 13 and the second extended platform 23. Since the inertial force and the sway amplitude of the floating buffer mechanism 400 in the length direction of the crossbeam support 100 are relatively large during the horizontal movement along the length direction of the crossbeam support 100, the first extended platform 23 and the second extended platform 23 are respectively arranged on one side of the first platform 1 and the second platform 2 along the length direction of the crossbeam support 100. Compared with being arranged on one side of the first platform 1 and the second platform 2 along the width direction of the crossbeam support 100, the space occupied by the floating buffer mechanism 400 swinging along the length direction of the crossbeam support 100 during the horizontal movement along the length direction of the crossbeam support 100 is relatively small. The swing structure 5 includes a swing shaft 51 arranged longitudinally, a swing plate 52 arranged on the upper side of the first platform 1, and a fourth universal rotating assembly 53 arranged on the second platform 2. The upper end of the swing shaft 51 is rotatably connected to the swing plate 52 through a hinge shaft 54 arranged along the length direction of the crossbeam support 100, so that the swing shaft 51 and the second platform 2 are limited to radially float and deflect around the hinge shaft 54, and the floating deflection amplitude of the swing shaft 51 and the second platform 2 in the axial direction of the hinge shaft 54 is restricted, that is, the deflection amplitude of the second platform 2 and the handling mechanism 500 in the length direction of the crossbeam support 100 is reduced, avoiding violent shaking or dust raising, and is suitable for use in some production workshops with serious dust falling such as cement, chemical fertilizer, and flour. Moreover, the reliability of the rigid constraint through the hinge shaft 54 is strong, and it is economical and durable. The lower end of the swing shaft 51 is axially telescopically connected to the fourth universal rotating assembly 53, ensuring that the second platform 2 can float and deflect relative to the lower end of the swing shaft 51 through the fourth universal rotating assembly 53. At the same time, the second platform 2 can move upward along the swing shaft 51 through the fourth universal rotating assembly 53 under the action of the upward supporting force of the handling mechanism 500 to buffer the upward supporting force of the handling mechanism 500.

[0045] As Figure 10As shown in the figure, in some specific embodiments, the outer periphery of the swing plate 52 is fixedly connected to the upper side of the first extension platform 13. An installation channel 521 is longitudinally provided through the middle of the swing plate 52. The hinge shaft 54 is arranged on the swing plate 52. The inner diameter of the installation channel 521 is larger than the outer diameter of the swing shaft 51. After installation, the upper end surface of the swing shaft 51 is spaced from the upper end surface of the swing plate 52 and is located below the upper end surface of the swing plate 52, ensuring that the upper end of the swing shaft 51 can deflect within the installation channel 521. A swing groove 131 is provided through the first extension platform 13. The length direction of the swing groove 131 is perpendicular to the hinge shaft 54. The swing groove 131 is arranged as a U-shaped groove structure with an opening facing outwards. The upper end of the swing shaft 51 extends into the swing groove 131 and the installation channel 521, and can swing along the length direction of the swing groove 131 within the swing groove 131 around the hinge shaft 54. The swing groove 131 further restricts the floating deflection amplitude of the swing shaft 51 and the second platform 2 in the axial and radial directions of the hinge shaft 54. The installation channel 521 restricts the deflection amplitude of the swing shaft 51. The reliability of the restriction is stronger, and it can also prevent the hinge shaft 54 from directly bearing a large torque of the swing shaft 51, extending the service life of the hinge shaft 54.

[0046] In some specific embodiments, a fourth assembly channel 231 is longitudinally provided through the second extension platform 23. The fourth universal rotating assembly 53 includes a fourth connecting member 531 fixedly connected in the fourth assembly channel 231 and a fourth rotating member 532 ball-jointed to the fourth connecting member 531. A fourth connection channel 5321 is longitudinally provided through the middle of the fourth rotating member 532. The lower end of the swing shaft 51 is telescopically connected in the fourth connection channel 5321. A seventh limiting member 511 protruding from the outer wall of the swing shaft 51 is arranged at the lower end of the swing shaft 51 to prevent the swing shaft 51 from disconnecting from the fourth rotating member 532. The radius of the swing shaft 51 is larger than the radius of the floating shaft 33. An upward protruding fifth annular boss 2311 is provided around the fourth assembly channel 231 on the upper side of the second extension platform 23. A limiting retaining ring 26 in contact with the second mounting plate 501 is provided on the lower side of the second extension platform 23. The fourth connecting member 531 is axially limited between the fifth annular boss 2311 and the limiting retaining ring 26 to prevent the fourth connecting member 531 from axially moving relative to the fourth assembly channel 231. The inner diameters of the fifth annular boss 2311 and the limiting retaining ring 26 are larger than the inner diameter of the fourth connecting member 531 and smaller than the outer diameter of the fourth connecting member 531, thereby providing sufficient accommodation space for the lower end of the swing shaft 51 and the seventh limiting member 511 after floating deflection while axially limiting the fourth connecting member 531.

[0047] As Figure 5As shown, in some specific embodiments, a floating dust-proof plate 14 is connected to the outer periphery of the first platform 1 and is arranged between the outer sides of the first platform 1 and the second platform 2. The second platform 2 floats and deflects relative to the first platform 1 and the floating dust-proof plate 14. The first telescopic channel 421 runs through the upper and lower ends of the monitoring base 42, facilitating assembly. A monitoring dust-proof plate 45 is provided at the top of the monitoring base 42, and a swinging dust-proof plate 55 is provided at the top of the swinging plate 52. The floating dust-proof plate 14, the monitoring dust-proof plate 45, and the swinging dust-proof plate 55 can prevent external dust or impurities from falling into the interior, ensuring the normal movement of the floating deflection.

[0048] As Figure 6 shown, in some specific embodiments, a plurality of longitudinally arranged mounting columns 15 are provided on the upper side of the first platform 1. The height of the mounting columns 15 is greater than the heights of the monitoring base 42, the swinging plate 52, and the first limiting cover 35. A column channel 151 that communicates with the first channel 16 on the first platform 1 and the second channel 3011 on the first mounting plate 301 is longitudinally penetrated through the mounting columns 15. The first platform 1 is fixedly connected to the first mounting plate 301 by a first fastener such as a bolt (not shown in the figure) extending into the first channel 16, the second channel 3011, and the column channel 151. The provision of the mounting columns 15 can prevent the top surfaces of the monitoring base 42, the swinging plate 52, and the first limiting cover 35 from abutting against or rubbing against the bottom surface of the first mounting plate 301, and the heights of the mounting columns 15 are the same, which can ensure the stable connection between the first platform 1 and the first mounting plate 301.

[0049] As Figure 11 shown, in some specific embodiments, a third channel 24 is longitudinally penetrated through the second platform 2. A fourth channel 5011 corresponding to the third channel 24 is provided on the second mounting plate 501. The second platform 2 is fixedly connected to the second mounting plate 501 by a second fastener such as a bolt (not shown in the figure) extending into the third channel 24 and the fourth channel 5011. After connection, the top surface of the second mounting plate 501 abuts against the bottom surface of the second platform 2, with a large contact area and good connection stability.

[0050] In some specific embodiments, a second telescopic channel 5012 for the axial movement of the lower end of the floating shaft 33 and the second limiting member 332 therein, and a third telescopic channel 5013 for the axial movement of the lower end of the swing shaft 51 therein are longitudinally provided on the second mounting plate 501. The second telescopic channel 5012 communicates with the second assembly channel 21, and the third telescopic channel 5013 communicates with the fourth assembly channel 231, ensuring that the floating shaft 33 and the swing shaft 51 can axially telescopic relative to the second platform 2. The inner diameter of the second telescopic channel 5012 is larger than the outer diameter of the second limiting member 332, ensuring that the lower end of the floating shaft 33 and the second limiting member 332 can deflect within the second telescopic channel 5012. The inner diameter of the third telescopic channel 5013 is larger than the outer diameter of the seventh limiting member 511, ensuring that the lower end of the swing shaft 51 and the seventh limiting member 511 can deflect within the third telescopic channel 5013.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

[0052] In summary, the above are only the preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the patent of the present invention.

Claims

1. A cargo loading device for a mobile platform, characterized in that, it includes a crossbeam bracket horizontally installed on a mobile platform that can move back and forth, a lifting mechanism connected to the crossbeam bracket through a lateral movement mechanism, and a handling mechanism connected to the lifting mechanism through a floating buffer mechanism. The floating buffer mechanism includes: A first platform, the upper side of which is connected to a first mounting plate provided at the lower end of the lifting mechanism; A second platform, connected to the lower side of the first platform through a plurality of longitudinally arranged floating structures. The lower side of the second platform is connected to a second mounting plate provided at the upper end of the handling mechanism. The floating structure includes a longitudinally arranged floating shaft, an elastic reset member for keeping the floating shaft longitudinally arranged, a first universal rotating assembly provided on the first platform, and a second universal rotating assembly provided on the second platform. One of the first universal rotating assembly and the second universal rotating assembly is axially fixedly connected to one end of the floating shaft, and the other is axially telescopically connected to the other end of the floating shaft; A first connection channel is longitudinally penetrated through the middle of the first universal rotating assembly. The upper end of the floating shaft extends into the interior of the first connection channel and is axially fixedly connected to the first connection channel. A second connection channel is longitudinally penetrated through the middle of the second universal rotating assembly. The lower end of the floating shaft extends into the interior of the second connection channel and is axially telescopically connected to the second connection channel; A monitoring structure for detecting the approach or separation of the second platform from the first platform is also longitudinally arranged between the first platform and the second platform. The monitoring structure includes a longitudinally arranged middle shaft, a monitoring base provided on the first platform, a monitoring member provided on the monitoring base, and a third universal rotating assembly provided on the second platform. A fourth connection channel is longitudinally penetrated through the first platform. The upper end of the middle shaft extends into the interior of the fourth connection channel and is axially telescopically connected to the fourth connection channel. The lower end of the middle shaft is axially fixedly connected to the third universal rotating assembly. The monitoring member is used to detect the approach or separation of the upper end of the middle shaft from the first platform; A fifth limiting member protruding from the outer periphery of the outer wall of the middle shaft is arranged at the upper end of the middle shaft, and a fourth limiting member and a sixth limiting member protruding from the outer periphery of the outer wall of the middle shaft are arranged at the lower end. The third universal rotating assembly is axially limited between the fourth limiting member and the sixth limiting member. The monitoring base is arranged on the upper side of the first platform. A first telescopic channel communicating with the fourth connection channel is longitudinally provided on the monitoring base. The upper end of the middle shaft and the fifth limiting member can axially move inside the first telescopic channel. A monitoring channel communicating with the first telescopic channel is horizontally penetrated through the monitoring base. The monitoring member is installed on the detection channel.

2. The cargo loading device according to claim 1, characterized in that: A first assembly channel for installing the first universal rotating assembly is longitudinally penetrated through the first platform. The first universal rotating assembly includes a first connecting member fixedly connected in the first assembly channel and a first rotating member ball-jointed to the first connecting member. The first connection channel is provided on the first rotating member; A second assembly channel is longitudinally provided through the second platform. The second universal rotating assembly includes a second connecting member fixedly connected in the second assembly channel and a second rotating member ball-jointed to the second connecting member. The second connecting channel is provided on the second rotating member.

3. The cargo loading device according to claim 2, wherein: A first hinge channel is longitudinally provided through the middle of the first connecting member. The outer wall of the first hinge channel is provided with an inwardly concave spherical structure, and the outer wall of the first rotating member is provided with an outwardly convex spherical structure that mates with the outer wall of the first hinge channel; A second hinge channel is longitudinally provided through the middle of the second connecting member. The outer wall of the second hinge channel is provided with an inwardly concave spherical structure, and the outer wall of the second rotating member is provided with an outwardly convex spherical structure that mates with the outer wall of the second hinge channel.

4. The cargo loading device according to claim 3, wherein: The upper and lower ends of the first rotating member respectively protrude from the upper and lower ends of the first connecting member. The upper and lower ends of the second rotating member respectively protrude from the upper and lower ends of the second connecting member. A first limiting member and a third limiting member protruding from the outer wall of the floating shaft are arranged at the upper end of the floating shaft, and a second limiting member protruding from the outer wall of the floating shaft is arranged at the lower end. The first rotating member is axially limited between the first limiting member and the third limiting member. A first annular boss is inwardly protruded from the lower part of the outer wall of the first assembly channel. A first limiting cover covering the first assembly channel is provided on the upper side of the first platform. The outer periphery of the first limiting cover is fixedly connected to the first platform. A first accommodating chamber is recessed upward from the bottom surface in the middle of the first limiting cover. A second annular boss extending downward from the lower end of the outer wall of the first accommodating chamber extends into the upper end of the first assembly channel. The first connecting member is axially limited between the first annular boss and the second annular boss. The first limiting member is located in the first accommodating chamber. The inner diameters of the first annular boss and the second annular boss are larger than the inner diameter of the first connecting member and smaller than the outer diameter of the first connecting member.

5. The cargo loading device according to claim 4, wherein: The elastic resetting member is sleeved outside the floating shaft, and the upper end of the elastic resetting member abuts against the bottom surface of the first platform, and the lower end of the elastic resetting member abuts against the top surface of the second platform.

6. The cargo loading device according to claim 5, wherein: There are four floating structures, which are arranged in a matrix and are respectively arranged near the outer peripheries of the first platform and the second platform. One side of the first platform arranged along the length direction of the crossbeam support extends outward to form a first extended platform, and one side of the second platform arranged along the length direction of the crossbeam support extends outward to form a second extended platform corresponding to the first extended platform. A swing structure is arranged between the first extended platform and the second extended platform. The swing structure includes a longitudinally arranged swing shaft, a swing plate arranged on the upper side of the first platform, and a fourth universal rotating assembly arranged on the second platform. The upper end of the swing shaft is rotatably connected to the swing plate through a hinge shaft arranged along the length direction of the crossbeam support, and the lower end of the swing shaft is axially telescopically connected to the fourth universal rotating assembly.

7. The cargo loading device according to claim 6, wherein: A floating dust-proof plate arranged between the outer sides of the first platform and the second platform is connected to the outer periphery of the first platform. A monitoring dust-proof plate is arranged on the top of the monitoring base, and a swing dust-proof plate is arranged on the top of the swing plate; A plurality of longitudinally arranged mounting columns are arranged on the upper side of the first platform. The height of the mounting columns is greater than the heights of the monitoring base, the swing plate and the first limiting cover. A column body channel longitudinally penetrating through the mounting columns and communicating with the first channel on the first platform and the second channel on the first mounting plate is arranged. The first platform is fixedly connected to the first mounting plate by a first fastener extending into the first channel, the second channel and the column body channel; A third channel is longitudinally penetrated through the second platform. A fourth channel corresponding to the third channel is arranged on the second mounting plate. The second platform is fixedly connected to the second mounting plate by a second fastener extending into the third channel and the fourth channel. A second telescopic channel for the lower end of the floating shaft and the second limiting member to axially move therein and a third telescopic channel for the lower end of the swing shaft to axially move therein are longitudinally penetrated through the second mounting plate. An upper portion of the outer wall of the second assembly channel protrudes inward to form a third annular boss, and a limiting retaining ring abutting against the second mounting plate is arranged at the lower end of the second assembly channel. The second connecting member is axially limited between the third annular boss and the limiting retaining ring. The inner diameters of the third annular boss and the limiting retaining ring are greater than the inner diameter of the second connecting member and less than the outer diameter of the second connecting member; A third assembly channel is longitudinally penetrated through the middle of the second platform. A fourth annular boss protruding upward around the third assembly channel is arranged on the upper side of the second platform. A limiting plate is arranged on the lower side of the second platform. The outer periphery of the limiting plate is fixedly connected to the lower side of the second platform. An annular concave portion is recessed downward from the top surface in the middle of the limiting plate. The third universal rotating assembly is axially limited between the fourth annular boss and the annular concave portion.

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