A large-piece unloading structure and method for logistics transportation

Abstract

The present invention discloses a large-scale unloading structure and method for logistics transportation, which relates to the technical field of logistics unloading, including: a box unit, which includes: a container, a flip bottom plate symmetrically hinged at the bottom of the container, the bottom of the flip bottom plate is symmetrically fixedly connected with a main lifting lug, and the two side edges of the container are symmetrically fixedly connected with auxiliary lifting lugs; a sling unit, which includes: a sling body, a main lifting rope and an auxiliary lifting rope respectively arranged on both sides of the sling body; a rope driving unit, which includes: a reduction motor symmetrically fixedly mounted on the sling body, an output shaft fixedly connected to the output end of the reduction motor, and a main winding roller fixedly connected to the output shaft. After the present invention slowly lowers the container, after the flip bottom plate is opened to the specified unloading angle, the auxiliary lifting ropes on both sides form a nearly equilateral triangle lifting structure, thereby improving the stability of the container during unloading.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics unloading, and in particular to a large-piece unloading structure and method for logistics transportation. Background Art

[0002] With the continuous development of logistics container transportation technology, large containers have gradually become the main force in the transportation of bulk materials such as grains. These containers usually have a large volume and load-bearing capacity, and can load a large amount of grain at one time, reducing transportation costs and improving transportation efficiency. At the same time, the standardized design of large containers also makes it easier to transfer between different ports and transportation tools.

[0003] Traditional grain unloading methods often rely on manual labor and simple mechanical equipment, such as shovels, brooms, forklifts, etc. These methods are not only inefficient, but also have certain safety hazards. In order to overcome these shortcomings, modern grain unloading technology has been continuously innovated, and a series of efficient and safe unloading tools have emerged, such as: bridge crane loading and unloading, directly adjusting the container loaded with materials above the grain bin, and then opening the bottom plate of the container to allow the goods to be directly poured out.

[0004] However, this unloading method has high requirements on the stability of lifting. Since the whole container is prone to shaking and unstable swinging during the dumping process, a more stable logistics and large-scale unloading structure is needed to solve the above problems. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In view of the problems existing in the above-mentioned existing large-piece unloading structure and method for logistics transportation, the present invention is proposed.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] A large-piece unloading structure for logistics transportation, comprising:

[0009] The box unit comprises: a container, a flip bottom plate symmetrically hinged to the bottom of the container, the bottom of the flip bottom plate is symmetrically fixedly connected with main lifting ears, and the two side edges of the container are symmetrically fixedly connected with auxiliary lifting ears;

[0010] The sling unit comprises: a sling body, a main sling rope and a secondary sling rope respectively arranged on both sides of the sling body, the main sling rope is connected with a main sling lug, and the secondary sling rope is connected with the secondary sling lug;

[0011] The rope driving unit comprises: a reduction motor symmetrically fixedly mounted on the main body of the sling, an output shaft fixedly connected to the output end of the reduction motor, and a main winding roller fixedly connected to the output shaft, the main ropes on both sides are wound around the main winding rollers, and when the main winding rollers rotate forward and reversely, the main ropes are synchronously driven to be retracted and released;

[0012] Wherein, a supporting translation mechanism is also provided on the sling body, and the auxiliary sling rope is driven to be retracted and extended through the supporting translation mechanism.

[0013] As a preferred solution of the large-scale unloading structure for logistics transportation described in the present invention, the bottom of the sling body is symmetrically fixedly connected with a fixed seat, the fixed seat is rotatably connected with a guide wheel, and the main lifting rope is connected with the main lifting ear after passing around the fixed seat.

[0014] As a preferred solution of the large-piece unloading structure for logistics transportation described in the present invention, the supporting translation mechanism includes an upper toothed plate frame and a lower toothed plate frame slidably arranged on both sides of the sling body, and the end of the output shaft is also fixedly connected to a first gear, the upper toothed plate frame is meshedly connected to the upper side of the first gear, and the lower toothed plate frame is meshedly connected to the lower side of the first gear;

[0015] Wherein, the upper tooth plate frame and the lower tooth plate frame are both rotatably connected with auxiliary winding rollers, and the retracting and extending action of the auxiliary winding rollers is controlled by the translational action of the upper tooth plate frame and the lower tooth plate frame.

[0016] As a preferred solution of the large-piece unloading structure for logistics transportation described in the present invention, the rotating shaft end of the auxiliary winding roller is also fixedly connected to a second gear, and the bottom of the sling body is fixedly connected to a rack, and the rack is meshed with the second gear.

[0017] As a preferred solution of the large-scale unloading structure for logistics transportation described in the present invention, limit slide grooves are symmetrically arranged on both sides of the sling body, and the back sides of the upper tooth plate frame and the lower tooth plate frame are fixedly connected with limit sliding blocks that are slidably connected and cooperate with the limit slide grooves.

[0018] As a preferred solution of the large-scale unloading structure for logistics transportation described in the present invention, wherein: the straight-line distance between the main lifting ear and the closest auxiliary lifting ear is A, the straight-line distance between the auxiliary lifting ear and the closest auxiliary winding roller in the loading state is B, and the straight-line distance between the guide wheel and the closest main lifting ear in the loading state is C, then: straight-line distance A = straight-line distance B = straight-line distance C.

[0019] As a preferred solution of the large-scale unloading structure for logistics transportation described in the present invention, wherein: the straight-line distance between the auxiliary lifting ear and the auxiliary winding roller closest to it in the unloading state is D, and the straight-line distance between the auxiliary lifting ear at the edge position on the same side is E, then: the straight-line distance D = straight-line distance E.

[0020] As a preferred solution of the large-piece unloading structure for logistics transportation described in the present invention, a plurality of slings are fixedly connected to the sling body, and the plurality of slings are distributed at four corners and connected to the main hook of the lifting equipment.

[0021] A method for unloading large items in logistics transportation, the method comprising the following steps:

[0022] Step 1: When the container is loaded, hang the main lifting lug, auxiliary lifting lug and corresponding main lifting rope and auxiliary lifting rope tightly, and then start lifting to the designated unloading warehouse;

[0023] Step 2: After the container is hoisted to the designated location, the unloading process begins. The reduction motor drives the main reel roller to unwind the container, and the main hoisting ropes on both sides gradually move downward, thereby opening the flip floor at the bottom of the container, and the material is directly poured out along the flip floor.

[0024] Step 3: After unloading, the main winding roller rewinds to close the flip bottom plate, and the container returns to the original container vehicle to complete unloading.

[0025] As a preferred solution of a large-scale unloading structure and method for logistics transportation described in the present invention, wherein: in the step two process, during the unloading process, the first gear drives the upper toothed plate frame and the lower toothed plate frame to translate, so that the two auxiliary winding rollers begin to approach each other, and at the same time the rack begins to pay off the line. When the auxiliary winding roller moves to the designated unloading point, that is, the straight-line distance D = the straight-line distance E, the hoisting structure of an approximately equilateral triangle composed of auxiliary lifting ropes improves the stability of the container during unloading.

[0026] Beneficial effects of the present invention:

[0027] 1. During lifting, the present invention forms a plurality of nearly equilateral triangle lifting structures by connecting the main lifting rope, the auxiliary lifting rope and the main lifting lug and the auxiliary lifting lug, thereby realizing stable lifting of the container;

[0028] 2. When unloading, the present invention realizes the opening of the bottom flip floor by paying out the main lifting rope, and at the same time, the auxiliary winding rollers on both sides are displaced, that is, the auxiliary lifting ropes are gradually extended, and then the container is slowly lowered. After the flip floor is opened to the specified unloading angle, the auxiliary lifting ropes on both sides form a nearly equilateral triangle lifting structure, thereby improving the stability of the container during unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0030] Figure 1 This is a schematic diagram of the overall structure of a large-piece unloading structure for logistics transportation proposed by the present invention;

[0031] Figure 2 This is a schematic diagram of the overall structure of the bottom side of a large-piece unloading structure for logistics transportation proposed by the present invention;

[0032] Figure 3 This is a structural schematic diagram of a large-piece unloading structure and a sling unit for logistics transportation proposed by the present invention;

[0033] Figure 4 for Figure 2 A schematic diagram of the enlarged structure at point A;

[0034] Figure 5 This is a schematic diagram of the structure of a rope driving unit of a large-scale unloading structure for logistics transportation proposed by the present invention;

[0035] Figure 6 This is a front structural schematic diagram of a large-scale unloading structure for logistics transportation proposed by the present invention during hoisting;

[0036] Figure 7 This is a front structural schematic diagram of a large-piece unloading structure for logistics transportation proposed by the present invention during unloading;

[0037] Figure 8 The present invention is a flowchart of a method for unloading large items in logistics transportation.

[0038] In the figure: 100-box unit, 101-container, 102-main lifting ear, 103-auxiliary lifting ear, 104-flip bottom plate, 200-sling unit, 201-sling body, 201a-limiting slide, 202-main lifting rope, 203-auxiliary lifting rope, 204-sling, 205-fixed seat, 206-guide wheel, 207-rack, 300-sling driving unit, 301-reduction motor, 301a-output shaft, 302-main winding roller, 303-upper gear plate frame, 304-lower gear plate frame, 305-first gear, 306-auxiliary winding roller, 307-second gear, 308-limiting slider. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0040] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0041] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0042] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0043] Reference Figure 1-Figure 5 , which is an embodiment of the present invention, provides a large-piece unloading structure for logistics transportation, including: a box unit 100, a hanger unit 200 and a hanging rope driving unit 300.

[0044] The box unit 100 includes: a container 101, a flip bottom plate 104 symmetrically hinged at the bottom of the container 101, a main lifting lug 102 symmetrically fixedly connected to the bottom of the flip bottom plate 104, and auxiliary lifting lugs 103 symmetrically fixedly connected to the two side edges of the container 101;

[0045] The sling unit 200 includes: a sling body 201, a main sling rope 202 and an auxiliary sling rope 203 respectively arranged on both sides of the sling body 201, the main sling rope 202 is connected with the main lifting lug 102, and the auxiliary sling rope 203 is connected with the auxiliary lifting lug 103. The bottom of the sling body 201 is symmetrically fixedly connected with a fixing seat 205, and the fixing seat 205 is rotatably connected with a guide wheel. The main sling rope 202 is connected with the main lifting lug 102 after passing the fixing seat 205. The main sling rope 202 can be hung on the main lifting lug 102 through the guide wheel on the fixing seat 205 after passing, so as to control the opening and closing of the flip bottom plate 104. The sling body 201 is also fixedly connected with a plurality of slings 204, and the plurality of slings 204 are connected with the main hook of the lifting equipment at four corners. It is used to cooperate with the lifting equipment for overall transfer.

[0046] The rope driving unit 300 includes: a reduction motor 301 symmetrically fixedly mounted on the sling body 201, an output shaft 301a fixedly connected to the output end of the reduction motor 301, and a main winding roller 302 fixedly connected to the output shaft 301a. The main ropes 202 on both sides are wound around the main winding roller 302. When the main winding roller 302 rotates forward and reversely, the main ropes 202 are synchronously driven to be retracted and released. The sling body 201 is also provided with a support translation mechanism, which drives the auxiliary ropes 203 to be retracted and released through the support translation mechanism. The supporting translation mechanism includes an upper toothed plate frame 303 and a lower toothed plate frame 304 slidably arranged on both sides of the sling body 201, and the end of the output shaft 301a is also fixedly connected with a first gear 305, the upper toothed plate frame 303 is meshed and connected with the upper side of the first gear 305, and the lower toothed plate frame 304 is meshed and connected with the lower side of the first gear 305, and the upper toothed plate frame 303 and the lower toothed plate frame 304 are both rotatably connected with an auxiliary winding roller 306, and the retracting and releasing action of the auxiliary winding roller 306 is controlled by the translational action of the upper toothed plate frame 303 and the lower toothed plate frame 304. Since the upper toothed plate frame 303 and the lower toothed plate frame 304 are respectively meshed with the upper and lower sides of the first gear 305, their moving directions must be opposite to the rotation of the first gear 305.

[0047] Specifically, the rotating shaft end of the auxiliary winding roller 306 is also fixedly connected to the second gear 307, and the bottom of the sling body 201 is fixedly connected to the rack 207, which meshes with the second gear 307. The meshing action of the second gear 307 and the rack 207 controls the retracting and releasing action of the auxiliary winding roller 306. The two sides of the sling body 201 are symmetrically provided with limited sliding grooves 201a, and the back sides of the upper toothed plate frame 303 and the lower toothed plate frame 304 are fixedly connected with limited sliding blocks 308 that are slidably connected and matched with the limited sliding grooves 201a. This allows the upper toothed plate frame 303 and the lower toothed plate frame 304 to slide smoothly on both sides of the sling body 201.

[0048] It should be noted that the straight-line distance between the main lifting lug 102 and the closest auxiliary lifting lug 103 is A, and the auxiliary lifting lug 103 is the reference lug 103 in the loading state. Figure 6 The linear distance between the auxiliary winding roller 306 closest to the loading state is B, and the linear distance between the guide wheel 206 and the main lifting lug 102 closest to the loading state is C, so: linear distance A = linear distance B = linear distance C. When loading, the auxiliary lifting rope 203 and the main lifting rope 202 close to each other on the same side can form a stable lifting mechanism close to an equilateral triangle to achieve stable lifting;

[0049] Auxiliary lifting lug 103 and reference in unloading state Figure 7The linear distance between the auxiliary winding roller 306 closest to the container 101 and the auxiliary lifting lug 103 at the edge of the same side is D, and the linear distance between the auxiliary lifting lug 103 and the auxiliary lifting lug 103 is E, so: the linear distance D = the linear distance E. When unloading, the auxiliary lifting rope 203 gradually extends downward, and when the container 101 is slowly lowered, the auxiliary lifting rope 203 will also change with the change of the length of the main lifting rope 202, and the auxiliary lifting ropes 203 on both sides also form a lifting structure close to an equilateral triangle, thereby ensuring stability during unloading.

[0050] Reference Figure 6-8 The unloading method based on the above-mentioned large-piece unloading structure for logistics transportation includes the following steps:

[0051] Step 1: When the container 101 is in the loading state, the main lifting lug 102 and the auxiliary lifting lug 103 are hung with the corresponding main lifting rope 202 and the auxiliary lifting rope 203, and then the container 101 is lifted to the designated unloading warehouse;

[0052] Step 2: After hoisting to the designated location, unloading begins, that is, the reduction motor 301 drives the main winding roller 302 to unwind, and the main hoisting ropes 202 on both sides begin to gradually descend, so that the flip floor 104 at the bottom of the container 101 opens, and the materials are directly poured out along the flip floor 104.

[0053] Specifically, during the unloading process, the first gear 305 drives the upper tooth plate frame 303 and the lower tooth plate frame 304 to translate, so that the two auxiliary winding rollers 306 begin to approach each other, and at the same time the auxiliary winding roller 306 begins to pay out the line. When the auxiliary winding roller 306 moves to the designated unloading point, that is, the straight-line distance D = the straight-line distance E, the lifting structure of the approximately equilateral triangle formed by the auxiliary lifting rope 203 improves the stability of the container 101 during unloading.

[0054] Step 3: After unloading is completed, the main winding roller 302 is rewound to close the flip bottom plate 104, and the container 101 is hoisted back to the original container vehicle to complete unloading.

[0055] In summary, during lifting, the present invention forms a plurality of nearly equilateral triangle lifting structures by connecting the main lifting rope 202 and the auxiliary lifting rope 203 to the main lifting lug 102 and the auxiliary lifting lug 103, thereby achieving stable lifting of the container 101.

[0056] When unloading, the bottom flip floor 104 is opened by paying out the main lifting rope 202, and at the same time, the auxiliary winding rollers 306 on both sides are displaced, that is, the auxiliary lifting ropes 203 are gradually extended, and then the container 101 is slowly lowered. After the flip floor 104 is opened to the specified unloading angle, the auxiliary lifting ropes 203 on both sides form a nearly equilateral triangle lifting structure, thereby improving the stability of the container 101 during unloading.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A large-scale unloading structure for logistics transportation, characterized in that: include: The box unit (100) comprises: a container (101), a flip bottom plate (104) symmetrically hinged to the bottom of the container (101), the bottom of the flip bottom plate (104) being symmetrically fixedly connected to main lifting ears (102), and the two side edges of the container (101) being symmetrically fixedly connected to auxiliary lifting ears (103); The sling unit (200) comprises: a sling body (201), a main sling rope (202) and a secondary sling rope (203) respectively arranged on both sides of the sling body (201), the main sling rope (202) being cooperatively connected to a main sling lug (102), and the secondary sling rope (203) being cooperatively connected to the secondary sling lug (103); A hoisting rope driving unit (300) comprises: a reduction motor (301) symmetrically fixedly mounted on a hoisting device body (201), an output shaft (301a) fixedly connected to an output end of the reduction motor (301), and a main winding roller (302) fixedly connected to the output shaft (301a), wherein main hoisting ropes (202) on both sides are wound around the main winding roller (302), and when the main winding roller (302) rotates forward and reverse, the main hoisting ropes (202) are synchronously driven to be wound and released; The lifting device body (201) is also provided with a support translation mechanism, which drives the auxiliary lifting rope (203) to be retracted and extended; The bottom of the sling body (201) is symmetrically fixedly connected to a fixed seat (205), the fixed seat (205) is rotatably connected to a guide wheel, and the main lifting rope (202) passes around the fixed seat (205) and is then matched with the main lifting ear (102); the supporting translation mechanism comprises an upper toothed plate frame (303) and a lower toothed plate frame (304) which are slidably arranged on both sides of the sling body (201), and the end of the output shaft (301a) is also fixedly connected to a first gear (305), the upper toothed plate frame (303) is meshingly connected to the upper side of the first gear (305), and the lower toothed plate frame (304) is meshingly connected to the lower side of the first gear (305), and the upper toothed plate frame (303) and the lower toothed plate frame (304) are both rotatably connected to an auxiliary winding roller (306), and the retracting and extending action of the auxiliary winding roller (306) is controlled by the translational action of the upper toothed plate frame (303) and the lower toothed plate frame (304); The rotating shaft end of the auxiliary winding roller (306) is also fixedly connected to a second gear (307), and the bottom of the sling body (201) is fixedly connected to a rack (207), and the rack (207) is meshed with the second gear (307); limiting slide grooves (201a) are symmetrically provided on the two side surfaces of the sling body (201), and the back sides of the upper toothed plate frame (303) and the lower toothed plate frame (304) are fixedly connected to limiting sliders (308) that are slidably connected and matched with the limiting slide grooves (201a); The straight-line distance between the main lifting lug (102) and the closest auxiliary lifting lug (103) is A, the straight-line distance between the auxiliary lifting lug (103) and the closest auxiliary winding roller (306) in the loading state is B, the straight-line distance between the guide wheel (206) and the closest main lifting lug (102) in the loading state is C, then: straight-line distance A = straight-line distance B = straight-line distance C, the straight-line distance between the auxiliary lifting lug (103) and the closest auxiliary winding roller (306) in the unloading state is D, and the straight-line distance between the auxiliary lifting lug (103) at the edge position on the same side is E, then: straight-line distance D = straight-line distance E.

2. A large-piece unloading structure for logistics transportation according to claim 1, characterized in that: A plurality of slings (204) are also fixedly connected to the sling main body (201); the plurality of slings (204) are distributed at four corners and connected to the main hook of the lifting equipment.

3. A method for unloading large items in logistics transportation, based on the large item unloading structure in logistics transportation according to claim 2, characterized in that: The method follows these steps: Step 1: When the container (101) is in a loading state, the main lifting lug (102) and the auxiliary lifting lug (103) are fastened to the corresponding main lifting rope (202) and the auxiliary lifting rope (203), and then the container (101) is lifted to a designated unloading warehouse; Step 2: After the container is hoisted to the designated location, unloading begins, i.e., the reduction motor (301) drives the main winding roller (302) to unwind, and the main hoisting ropes (202) on both sides begin to gradually descend, thereby opening the flip bottom plate (104) at the bottom of the container (101), and the material is directly poured out along the flip bottom plate (104); Step 3: After unloading is completed, the main winding roller (302) is rewound, so that the flip bottom plate (104) is closed, and the container (101) is hoisted back to the original container vehicle to complete unloading.

4. A method for unloading large items in logistics transportation according to claim 3, characterized in that: In step 2, during the unloading process, the first gear (305) drives the upper gear plate frame (303) and the lower gear plate frame (304) to translate, so that the two auxiliary winding rollers (306) begin to approach each other, and at the same time, the auxiliary winding roller (306) begins to release the wire. When the auxiliary winding roller (306) moves to the designated unloading point, that is, the straight-line distance D = the straight-line distance E, the approximately equilateral triangle hoisting structure formed by the auxiliary hoisting rope (203) improves the stability of the container (101) during unloading.

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