Rotary pallet fork device and loading and unloading system

Abstract

The utility model provides a rotary pallet fork device and a loading and unloading system, and belongs to the technical field of loading and unloading equipment. According to the technical scheme, the rotary pallet fork device comprises a mounting base and a pallet fork, the mounting base comprises a first mounting part, the pallet fork comprises a fixing part and an operating part, the fixing part is connected with the first mounting part, the mounting base is fixedly connected with a rotating mechanism, and the rotating mechanism is at least used for driving the mounting base and the pallet fork to rotate around a first axis; the extending direction of the operation part is perpendicular to the first axis. According to the device, the rotating mechanism is arranged on the mounting base to drive the mounting base and the pallet fork to rotate along the designated axis, forward and reverse 360-degree rotation can be achieved, the rotating radius of the pallet fork during cargo loading and unloading is reduced, the space utilization rate is maximized, the situation that the position of cargoes is adjusted repeatedly during cargo loading and unloading is avoided, and the loading and unloading efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of loading and unloading equipment technology, and in particular to a rotating fork device and loading and unloading system. Background Technology

[0002] As the volume of general cargo handling at ports increases, the volume of plywood handling also increases, and the on-site loading and unloading operations place higher and higher demands on the cargo capacity inside the ship's hold. Due to the limited size of the ship's hold hatch, gantry cranes cannot directly lift plywood into the surrounding area of ​​the ship's hold. In order to make more efficient use of the space inside the ship's hold, excavators need to be parked inside the hold to carry out cargo lifting operations.

[0003] However, when traditional excavator attachments are used for jacking operations, the limited space inside the ship's hold makes it impossible to move the cargo to the correct position in one go. When loading and unloading into the corners of the ship's hold, the cargo needs to be adjusted multiple times before it can be stacked in place, resulting in low work efficiency. At the same time, the cargo transportation process requires workers to perform hook and unhook operations, which is inefficient and poses a safety risk of mechanical injury. Utility Model Content

[0004] This invention addresses the problems of low efficiency and safety in traditional transportation operations due to limited workspace, the need for multiple cargo adjustments, and the requirement for manual assistance. It proposes a rotating forklift device and a loading / unloading system.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a rotating fork device, including a mounting base and forks. The mounting base includes a first mounting part, and the forks include a fixing part and a working part. The fixing part is connected to the first mounting part. A rotating mechanism is fixedly connected to the mounting base. The rotating mechanism is used to drive the mounting base and forks to rotate around a first axis. The extension direction of the working part is perpendicular to the first axis. By setting a rotating mechanism on the mounting base to drive the mounting base and forks to rotate along a specified axis, this device can achieve 360-degree rotation in both directions, reducing the rotation radius of the forks when loading and unloading goods, maximizing space utilization, avoiding multiple adjustments to the position of goods during loading and unloading, and improving loading and unloading efficiency.

[0007] Furthermore, the rotating mechanism includes a slewing bearing and a drive motor. The output end of the drive motor is connected to the slewing bearing for transmission, and the slewing bearing is fixedly connected to the mounting base. This structure is simple, has high operating accuracy and rotational stability, and is easy to implement.

[0008] Furthermore, the mounting base includes a fixed frame, a slewing bearing fixedly connected to the fixed frame, and a mounting plate at one end of the fixed frame to form a first mounting part. The mounting plate includes at least two crossbeams and multiple vertical beams connected between the two crossbeams. The fixed part is movably connected to the crossbeams, and the forks can move along the crossbeams. This structure of crossbeams and vertical beams reduces the weight of the mounting plate while increasing its structural strength, ensuring the strength of the forks and the stability during cargo handling. The forks can move along the extension direction of the crossbeams, improving applicability.

[0009] Furthermore, the forks have an "L" shaped structure. The long side of the fork forms the working part, and the short side forms the fixing part. The end of the fixing part furthest from the working part has a lug with an inverted "U" shaped mounting groove. A mounting plate is provided on the crossbeam, and the lug is attached to the crossbeam. The mounting plate engages with the mounting groove. This facilitates the installation and removal of the forks and provides guidance and limitation for fork movement.

[0010] Furthermore, the mounting plate has multiple evenly spaced locking slots along its extension direction, and locking blocks are installed inside the slots. These locking blocks engage with the locking slots, effectively preventing the forks from shifting relative to the crossbeam during cargo handling and improving the stability of cargo transport.

[0011] Furthermore, the mounting base is connected to multiple locking pins, the fixing part has a first fixing hole, and the crossbeam has multiple second fixing holes. These second fixing holes are evenly spaced along the extension direction of the crossbeam. The locking pins pass through the first and second fixing holes to securely connect the forks to the crossbeam. This further improves the connection strength between the forks and the crossbeam, enhancing transport stability.

[0012] Furthermore, the fixing frame includes a first support plate and a second support plate connected to each other. Both the first and second support plates are fixedly connected to the mounting plate, so that the first support plate, the second support plate, and the mounting plate form a triangular structure. One end of the first support plate is connected to the slewing bearing. This improves the structural strength and stability.

[0013] Furthermore, multiple forks are provided, arranged along the extension direction of the first mounting part. This further expands the applicability.

[0014] This utility model also provides a loading and unloading system, including a rotating fork device and a crane as described in any of the above. The rotating fork device further includes a connecting seat, which is connected to the mounting seat through a rotating mechanism, so that the mounting seat can rotate relative to the connecting seat about a first axis. The connecting seat is provided with a first hinge portion and a second hinge portion. The crane includes a boom, a first hydraulic cylinder disposed on the boom, a fork, and a second hydraulic cylinder disposed on the fork. The free end of the boom is hinged to the fork. The middle part of the first hydraulic cylinder is hinged to the middle part of the boom, the end of the first hydraulic cylinder is hinged to the tail of the fork, the free end of the fork is hinged to the first hinge portion, the middle part of the second hydraulic cylinder is hinged to the middle part of the fork, and the end of the second hydraulic cylinder is hinged to the second hinge portion. This system uses the boom and fork to drive the forks to pitch, and then uses a rotating mechanism to drive the forks to rotate 360 ​​degrees in both directions, increasing the movement of the forks, further improving automation, reducing the number of manual operations such as hooking and unhooking, and allowing the entire operation to be completed by the crane operator, reducing personnel usage, improving work efficiency, and eliminating the risk of worker injury.

[0015] As can be seen from the above technical solutions, the advantages of this utility model are:

[0016] 1. This utility model, by setting a rotating mechanism on the mounting base, drives the mounting base and forks to rotate along a specified axis, which can achieve 360-degree rotation in both directions, reduce the rotation radius of the forks when loading and unloading goods, maximize space utilization, avoid multiple adjustments to the position of goods during loading and unloading, and improve loading and unloading efficiency.

[0017] 2. This utility model uses the boom and forearm to drive the forks to pitch, and then uses a rotating mechanism to drive the forks to rotate 360 ​​degrees in both directions, increasing the movement of the forks, further improving automation, reducing the operation process of unhooking and hooking by workers, and all operations can be completed by the crane operator, reducing personnel usage, improving work efficiency, and eliminating the risk of worker injury. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the mounting base in one embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the fork structure in one embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the rotating fork device in one embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the loading and unloading system in one embodiment of the present invention.

[0023] Explanation of key figure labels:

[0024] 100. Mounting base; 110. Fixing frame; 111. First support plate; 112. Second support plate; 120. Mounting plate; 121. Horizontal beam; 122. Vertical beam; 123. Hanging plate; 124. Locking slot; 130. Connecting seat; 131. First hinge part; 132. Second hinge part; 200. Fork; 210. Fixing part; 211. Hanging lug; 212. Hanging slot; 213. Locking block; 220. Working part; 310. Slewing bearing; 400. Crane; 410. Boom; 420. First hydraulic cylinder; 430. Arm; 440. Second hydraulic cylinder. Detailed Implementation

[0025] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0026] Example 1

[0027] Please see Figures 1-3 A rotating fork device includes a mounting base 100 and forks 200. The mounting base 100 includes a first mounting portion, and the forks 200 include a fixing portion 210 and a working portion 220. The fixing portion 210 is connected to the first mounting portion. The mounting base 100 is fixedly connected to a rotating mechanism, which is at least used to drive the mounting base 100 and the forks 200 to rotate around a first axis. The extension direction of the working portion 220 is perpendicular to the first axis.

[0028] In the working state of this embodiment, the first axis is vertical, the mounting base 100 is placed horizontally, and a first mounting part is provided on one side of the mounting base 100. The fixing part 210 of the fork 200 is connected to the first mounting part, so that the fork 200 is fixed on the mounting base 100. The working part 220 of the fork 200 is located on the lower side of the mounting base 100, and the working part 220 of the fork 200 extends horizontally. When loading and unloading goods, the working part 220 of the fork 200 is extended to the bottom of the goods, or the working part 220 of the fork 200 is placed above the goods, and the goods are hung by hooks or ropes. A rotating mechanism is also provided on the mounting base 100. This rotating mechanism can drive the mounting base 100 to rotate around the first axis, thereby driving the fork 200 to rotate around the first axis, so that the fork 200 rotates in the horizontal direction. In practical work, when loading and unloading goods in a narrow space, the working part 220 of the fork 200 is extended to the bottom of the goods, and the working part 220 is moved to a certain distance from the ground or operating platform. Then, the mounting base 100 is rotated by the rotating mechanism, thereby causing the fork 200 and the goods to rotate together to a certain angle to reach the corresponding position. Then, the fork 200 is moved to the designated position for unloading, which reduces the rotation radius of the fork 200 and the goods.

[0029] In the above structure, such as Figure 3 As shown, by setting a rotating mechanism on the mounting base 100 to drive the mounting base 100 and the forks 200 to rotate along a specified axis, 360-degree rotation in both directions can be achieved, reducing the turning radius of the forks 200 when loading and unloading goods, saving the working space for adjusting the direction of goods, maximizing the space utilization, facilitating loading and unloading operations in narrow working environments, avoiding multiple adjustments to the position of goods when loading and unloading goods, and improving the efficiency of loading and unloading.

[0030] In terms of the structure of the rotating mechanism, the rotating mechanism includes a slewing bearing 310 and a drive motor. The output end of the drive motor is connected to the slewing bearing 310 for transmission, and the slewing bearing 310 is fixedly connected to the mounting base 100.

[0031] In this embodiment, a drive motor is installed in the middle of the slewing bearing 310. The rotation direction and speed of the drive motor are controlled by a hydraulic valve. A mounting base 100 is connected to the lower end of the slewing bearing 310. The drive motor drives the slewing bearing 310 to rotate, thereby driving the mounting base 100 and the forks 200 to rotate. This structure is simple, has high operating accuracy and rotational stability, and is easy to implement.

[0032] In the specific structure of the mounting base 100 and the forks 200, such as Figure 1 , 2As shown, the mounting base 100 includes a fixed frame 110, and a slewing bearing 310 is fixedly connected to the fixed frame 110. One end of the fixed frame 110 is provided with a mounting plate 120 to form a first mounting part. The mounting plate 120 includes at least two crossbeams 121 and a plurality of vertical beams 122 connected between the two crossbeams 121. The fixing part 210 is movably connected to the crossbeams 121, and the fork 200 can move along the crossbeams 121. The fork 200 has an "L" shaped structure. The long side of the fork 200 forms a working part 220, and the short side of the fork 200 forms a fixing part 210. The end of the fixing part 210 away from the working part 220 is provided with a lug 211. The lug 211 is provided with an inverted "U" shaped hanging groove 212. The crossbeam 121 is provided with a hanging plate 123. The lug 211 is hung on the crossbeam 121, and the hanging plate 123 is engaged with the hanging groove 212.

[0033] In this embodiment, a mounting plate 120 is provided on one side of the fixing frame 110. The mounting plate 120 has a rectangular structure, wherein the width direction of the mounting plate 120 is consistent with the extension direction of the first axis, and the fixing member is located at the middle of the mounting plate 120 along its length direction. The fork 200 has an "L"-shaped structure, and the extension direction of the short side of the fork 200 is consistent with the width direction of the mounting plate 120, that is, it extends vertically, so that the fixing part 210 fits against the mounting plate 120. The extension direction of the long side of the fork 200 is perpendicular to the vertical direction, thereby facilitating the handling of goods. The mounting plate 120 is composed of at least two crossbeams 121 and multiple vertical beams 122. The two crossbeams 121 are arranged in parallel and spaced apart, and the multiple vertical beams 122 are evenly fixed between the two crossbeams 121, thereby reducing the weight of the mounting plate 120 while improving the structural strength of the mounting plate 120, ensuring the strength of the fork 200, and ensuring the stability when handling goods.

[0034] Additionally, a lug 211 is provided at the upper end of the fixing part 210 of the fork 200, and a hanging plate 123 is provided on the crossbeam 121 located on the opposite upper side. The hanging plate 123 can be integrally set with the crossbeam 121, and the extension direction of the hanging plate 123 is consistent with the extension direction of the crossbeam 121. An inverted "U"-shaped hanging groove 212 is provided on the inner side of the lug 211, with the opening of the hanging groove 212 facing downward. When the fork 200 is installed on the crossbeam 121, the lug 211 is hung on the crossbeam 121, so that the hanging groove 212 and the scraper are engaged, thereby facilitating the installation and removal of the fork 200. Furthermore, the fork 200 can move along the extension direction of the crossbeam 121, thereby facilitating the handling of goods of different sizes or goods with different centers of gravity. At this time, the structure of the lug 211 and the hanging plate 123 provides guidance and limiting function for the movement of the fork 200.

[0035] Specifically, the mounting plate 123 has multiple evenly spaced locking slots 124 along its extension direction, and the mounting groove 212 has locking blocks 213 inside, which engage with the locking slots 124. Multiple locking slots 124 are located on the top of the mounting plate 123, with their openings facing upwards. Correspondingly, locking blocks 213 are provided on the inner arm of the mounting groove 212. When the mounting groove 212 and the mounting plate 123 engage, the locking blocks 213 insert into the locking slots 124, further improving the engagement and limiting capability. This effectively prevents the forks 200 from easily shifting relative to the crossbeam 121 due to stress during cargo handling, thus improving the stability of cargo handling.

[0036] In the fixing structure of the fork 200 of the crossbeam 121, the mounting base 100 is connected with a plurality of locking pins, the fixing part 210 is provided with a first fixing hole, and the crossbeam 121 is provided with a plurality of second fixing holes. The plurality of second fixing holes are evenly spaced along the extension direction of the crossbeam 121. The locking pins pass through the first fixing hole and the second fixing hole to fix the fork 200 to the crossbeam 121. In this embodiment, after the fork 200 is moved relative to the crossbeam 121 to the predetermined working position, to prevent the fork 200 from moving during cargo transport, it needs to be fixed to the crossbeam 121. A first fixing hole is provided on the fixing part 210 of the fork 200, and correspondingly, a second fixing hole is provided on the crossbeam 121. To ensure that the fork 200 can be fixed to the crossbeam 121 in different positions, multiple second fixing holes are provided on the crossbeam 121 along its extension direction. After the crossbeam 121 moves to the corresponding position, the first fixing hole and the second fixing hole connect accordingly, and then the locking pin is passed through the first fixing hole and the second fixing hole for fixation. This structure is convenient to operate, easy to install and disassemble, further improving the connection strength between the fork 200 and the crossbeam 121 and enhancing transport stability. Furthermore, the locking pin can be a bolt structure, and the first fixing hole and the second fixing hole can be corresponding threaded hole structures.

[0037] In the specific structure of the fixing frame 110, such as Figure 1 As shown, the fixing frame 110 includes a first support plate 111 and a second support plate 112 connected to each other. The first support plate 111 and the second support plate 112 are both fixedly connected to the mounting plate 120, so that the first support plate 111, the second support plate 112 and the mounting plate 120 form a triangular structure. One end of the first support plate 111 is connected to the rotating mechanism.

[0038] In this embodiment, the first support plate 111 is placed horizontally, and its upper end is fixedly connected to the slewing bearing 310. One end of the first support plate is fixed to the mounting plate 120, and the other end is fixed to one end of the second support plate. The second support plate is inclined so that one end of the second support plate is fixedly connected to the mounting plate 120. The first support plate, the second support plate, and the mounting plate 120 form a triangular structure, which improves the structural strength and stability.

[0039] Furthermore, multiple forks 200 are provided, arranged along the extension direction of the first mounting portion. The presence of multiple forks 200 allows for the handling of goods of different sizes, weights, and structures, further expanding its applicability.

[0040] Example 2

[0041] Please see Figure 4 A loading and unloading system includes the aforementioned rotating fork assembly and a crane 400. The rotating fork assembly further includes a connecting seat 130, which is connected to a mounting base 100 via a rotating mechanism, allowing the mounting base 100 to rotate relative to the connecting seat 130 around a first axis. The connecting seat 130 is provided with a first hinge portion 131 and a second hinge portion 132. The crane 400 includes a boom 410, a first hydraulic cylinder 420 disposed on the boom 410, and a fork 430. The forearm 430 is provided with a second hydraulic cylinder 440. The free end of the boom 410 is hinged to the forearm 430. The middle part of the first hydraulic cylinder 420 is hinged to the middle part of the boom 410. The end of the first hydraulic cylinder 420 is hinged to the tail of the forearm 430. The free end of the forearm 430 is hinged to the first hinge part 131. The middle part of the second hydraulic cylinder 440 is hinged to the middle part of the forearm 430. The end of the second hydraulic cylinder 440 is hinged to the second hinge part 132.

[0042] In this embodiment, the rotating fork device also includes a connecting seat 130. The upper end of the connecting seat 130 is provided with a first hinge portion 131 and a second hinge portion 132. The lower end of the connecting seat 130 is connected to the slewing bearing 310. When the drive motor drives the fork 200 to rotate, the mounting seat 100 rotates relative to the connecting seat 130, and the connecting seat 130 remains fixed. The crane 400 includes a boom 410 and a fork 430. A first hydraulic cylinder 420 is installed on the boom 410, and a second hydraulic cylinder 440 is installed on the fork 430. The middle part of the first hydraulic cylinder 420 is hinged to the middle part of the boom 410, and the end of the first hydraulic cylinder 420 is hinged to one end of the fork 430, so that the boom 410 can drive the fork 430 to move. The middle part of the second hydraulic cylinder 440 is hinged to one end of the middle part of the fork 430, and the other end of the fork 430 is hinged to a first hinge part 131. The end of the second hydraulic cylinder 440 is hinged to a second hinge part 132, so that the fork 430 can drive the connecting seat 130 to move, and thus drive the fork 200 to move accordingly.

[0043] In the above structure, the boom 410 and fork 430 drive the forks 200 to pitch, and the rotating mechanism drives the forks 200 to rotate 360 ​​degrees in both directions, increasing the movement of the forks 200, further improving automation, reducing the operation process of unhooking and hooking by workers, and all operations can be completed by the crane operator 400, reducing personnel usage, improving work efficiency, and eliminating the risk of worker injury.

[0044] Among them, the crane 400 can be an excavator structure without the bucket, which improves its applicability.

[0045] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rotating fork device, characterized in that, The device includes a mounting base and forks. The mounting base includes a first mounting portion, and the forks include a fixing portion and a working portion. The fixing portion is connected to the first mounting portion. The mounting base is fixedly connected to a rotating mechanism, which is at least used to drive the mounting base and the forks to rotate around a first axis. The extension direction of the working portion is perpendicular to the first axis.

2. The rotating fork device according to claim 1, characterized in that, The rotating mechanism includes a slewing bearing and a drive motor. The output end of the drive motor is connected to the slewing bearing for transmission, and the slewing bearing is fixedly connected to the mounting base.

3. The rotating fork device according to claim 2, characterized in that, The mounting base includes a fixed frame, the slewing bearing is fixedly connected to the fixed frame, one end of the fixed frame is provided with a mounting plate to form the first mounting part, the mounting plate includes at least two crossbeams and a plurality of vertical beams connected between the two crossbeams, the fixed part is movably connected to the crossbeams, and the forks can move along the crossbeams.

4. The rotating fork device according to claim 3, characterized in that, The fork has an "L" shaped structure. The long side of the fork forms the working part, and the short side of the fork forms the fixing part. The end of the fixing part away from the working part is provided with a hanging lug. The hanging lug is provided with an inverted "U" shaped hanging groove. The crossbeam is provided with a hanging plate. The hanging lug is hung on the crossbeam, and the hanging plate is engaged with the hanging groove.

5. The rotating fork device according to claim 4, characterized in that, The hanging plate has multiple evenly spaced slots along its extension direction, and a locking block is provided inside the slot, which engages with the slot.

6. The rotating fork device according to claim 5, characterized in that, The mounting base is connected to multiple locking pins. The fixing part is provided with a first fixing hole, and the crossbeam is provided with multiple second fixing holes. The multiple second fixing holes are evenly spaced along the extension direction of the crossbeam. The locking pins pass through the first fixing hole and the second fixing hole to fix the forks to the crossbeam.

7. The rotating fork device according to claim 3, characterized in that, The fixing frame includes a first support plate and a second support plate connected to each other. Both the first support plate and the second support plate are fixedly connected to the mounting plate, so that the first support plate, the second support plate and the mounting plate form a triangular structure. One end of the first support plate is connected to the slewing bearing.

8. A rotating fork device according to any one of claims 1-7, characterized in that, Multiple forks are provided, and the multiple forks are arranged along the extension direction of the first mounting part.

9. A loading and unloading system, characterized in that, The invention includes a rotating fork assembly and a crane as described in any one of claims 1-8. The rotating fork assembly further includes a connecting seat, which is connected to the mounting seat via the rotating mechanism, allowing the mounting seat to rotate relative to the connecting seat about the first axis. The connecting seat has a first hinge portion and a second hinge portion. The crane includes a boom, a first hydraulic cylinder disposed on the boom, a fork, and a second hydraulic cylinder disposed on the fork. The free end of the boom is hinged to the fork. The middle portion of the first hydraulic cylinder is hinged to the middle portion of the boom. The end portion of the first hydraulic cylinder is hinged to the tail portion of the fork. The free end of the fork is hinged to the first hinge portion. The middle portion of the second hydraulic cylinder is hinged to the middle portion of the fork. The end portion of the second hydraulic cylinder is hinged to the second hinge portion.

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