Ultra-long pallet fork unloading mechanism

Abstract

The utility model provides a super-long pallet fork unloading mechanism which comprises a lifting crank arm, a lower shaft of the lifting crank arm is connected with a lifting small wheel, a middle shaft of the lifting crank arm is connected with a pallet fork lifting fulcrum, and a crank arm hinge point is connected with a crank arm linkage rod. One end of the crank arm linkage rod is connected with the crank arm stress application lever, a long arm is connected with the electric push rod, a short arm is connected with the crank arm linkage rod, and the electric push rod is driven by the lifting motor; a pallet fork walking fulcrum on the super-long pallet fork is connected with the pallet fork walking chain. According to the super-long pallet fork unloading mechanism, the pallet fork is forked into the bottom of the goods for a long distance through chain driving, the goods are lifted through the lifting wheels, the goods are separated from the bottom plate of the truck bed, then the pallet fork and the goods are driven by the chain to move out of the truck bed to the lifting platform together, one-time unloading can be achieved, labor intensity is greatly relieved, and working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of unloading mechanisms, in particular to an extra-long fork unloading mechanism. Background Art

[0002] The unloading mechanism is mainly used for loading and unloading goods. It is a bridging device that makes loading and unloading goods more convenient and quick. It belongs to the classification of logistics equipment and is widely used in warehouses, logistics centers, distribution centers and other places. There are many types of unloading platforms, including mechanical, hydraulic, telescopic, pneumatic, vertical, table-side, mobile and fixed, etc. Each type has its specific application scenarios and advantages; for example, the hydraulic unloading platform uses a hydraulic power unit for loading and unloading operations, while the telescopic type can make up for the height difference and distance difference between the truck and the building platform. The fence and safety device of the unloading platform are also important components to ensure safety during use.

[0003] However, in the prior art, it is impossible to achieve one-time unloading, the labor intensity is high, multiple processes are required, and the efficiency is low. In order to solve this technical problem, an extra-long fork unloading mechanism is proposed. Utility Model Content

[0004] In view of the above-mentioned defects or shortcomings in the prior art, the present application aims to provide an extra-long fork unloading mechanism, comprising a lifting crank arm, the lower axis of the lifting crank arm is connected to a lifting wheel, the middle axis of the lifting crank arm is connected to the fork lifting fulcrum, and the crank arm hinge point is connected to the crank arm linkage rod; one end of the crank arm linkage rod is connected to the crank arm force lever, the long arm is connected to an electric push rod, and the short arm is connected to the crank arm linkage rod, and the electric push rod is driven by a lifting motor; the fork walking fulcrum on the extra-long fork is connected to the fork walking chain, the fork walking chain is connected to the walking sprocket, and the walking sprocket is driven by a walking motor, the fork walking chain is installed on the periphery of the lifting platform, and an infrared probe is arranged on the left side of the lifting platform.

[0005] Preferably, there are multiple groups of crank arm wheels on a fork.

[0006] Preferably, the lifting crank arm is connected in series to the crank arm linkage rod through a crank arm hinge point.

[0007] Preferably, the extra-long forks are grouped in two, and each group is driven by fork travel chains and travel sprockets that are symmetrical on both sides.

[0008] Preferably, the left side of the extra-long fork unloading mechanism is provided with a truck and a cargo pallet, and cargo can be placed on the upper end of the cargo pallet.

[0009] Beneficial effect: The extra-long fork unloading mechanism uses a chain drive to make the fork fork into the bottom of the cargo for a long distance. The cargo is lifted by the lifting wheels to leave the bottom plate of the car box. The chain drives the fork to move out of the car box together with the cargo to the lifting platform, which can realize one-time unloading, greatly reducing labor intensity and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0011] Figure 1 This is a front view of the super-long fork unloading mechanism of the utility model;

[0012] Figure 2 It is a top view of the super-long fork unloading mechanism of the utility model;

[0013] Figure 3 It is a partial structural schematic diagram of the super-long fork unloading mechanism of the utility model;

[0014] In the figure: 1. Fork lifting fulcrum; 2. Crank arm hinge point; 3. Lifting crank arm; 4. Lifting small wheel; 5. Crank arm linkage rod; 6. Extra-long fork; 7. Fork travel fulcrum; 8. Lifting platform; 9. Lifting motor; 10. Electric push rod; 11. Crank arm boost lever; 12. Fork travel chain; 13. Travel drive sprocket; 14. Travel motor; 15. Infrared probe; 16. Cargo; 17. Cargo pallet; 18. Truck. DETAILED DESCRIPTION

[0015] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0016] The accompanying drawings in the embodiments of the present invention: different types of section lines in the drawings are not marked according to national standards, nor do they impose any requirements on the materials of the components. Instead, they are used to distinguish the cross-sectional views of the components in the drawings.

[0017] See also Figure 1-3A super-long fork unloading mechanism includes a lifting crank arm 3, the lower axis of the lifting crank arm 3 is connected to a lifting wheel 4, the middle axis of the lifting crank arm 3 is connected to the fork lifting fulcrum 1, and the crank arm hinge point 2 is connected to the crank arm linkage rod 5; one end of the crank arm linkage rod 5 is connected to the crank arm force lever 11, the long arm is connected to the electric push rod 10, and the short arm is connected to the crank arm linkage rod 5, and the electric push rod 10 is driven by the lifting motor 9; the fork walking fulcrum 7 on the super-long fork 6 is connected to the fork walking chain 12, the fork walking chain 12 is connected to the walking sprocket 13, and the walking sprocket 13 is driven by the walking motor 14, the fork walking chain 12 is installed on the periphery of the lifting platform 8, and an infrared probe 15 is arranged on the left side of the lifting platform 8.

[0018] Among them, there are multiple sets of small wheels on the crank arm of a fork.

[0019] The lifting crank arm 3 is connected in series to the crank arm linkage rod 5 via the crank arm hinge point 2 .

[0020] Among them, two extra-long forks 6 form a group, and each group is driven by a fork walking chain 12 and a walking sprocket 13 symmetrical on both sides.

[0021] The left side of the extra-long fork unloading mechanism is provided with a truck 18 and a cargo pallet 17 , and cargo 16 can be placed on the upper end of the cargo pallet 17 .

[0022] It should be noted that the fork insertion: two extra-long forks 6 are driven by the symmetrical fork walking chains 12 and walking sprockets 13 on both sides, and slowly fork into the bottom groove of the cargo pallet 17, and can be forked into the entire vehicle box at one time. The front end of the extra-long fork 6 is designed as a guide shape, which makes the fork insertion smoother.

[0023] Lifting of goods: After the extra-long fork 6 is forked into the bottom groove of the cargo pallet 17, the lifting motor 9 is started, pushing the electric push rod 10 to extend, applying force to the crank arm force lever 11, the crank arm force lever 11 drives the crank arm linkage rod 5, the crank arm linkage rod 5 drives several lifting crank arms 3 connected in series thereto, the lifting crank arm 3 drives the lifting wheel 4 to rotate downward, and the reaction force of the bottom plate of the truck 18 forces the extra-long fork 6 to rise upward, thereby lifting the goods 16 through the cargo pallet 17.

[0024] Unloading of goods: Start the travel motor 14 again, reverse drive the fork travel chain 12, drive the extra-long fork 6 together with the cargo pallet 17 and the goods 16 to slowly move out of the car box to the lifting platform 8, and thus complete the car box unloading task, and adjust the lifting platform to the next process.

[0025] The above process is guided by the information from the infrared probe 15 and can be operated fully manually or automatically in conjunction with an electronic control system.

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. An extra-long fork unloading mechanism, comprising a lifting arm (3), characterized in that: The lower shaft of the lifting crank arm (3) is connected to a lifting wheel (4), the middle shaft of the lifting crank arm (3) is connected to a fork lifting fulcrum (1), and the crank arm hinge point (2) is connected to a crank arm linkage rod (5); one end of the crank arm linkage rod (5) is connected to a crank arm force lever (11), the long arm is connected to an electric push rod (10), and the short arm is connected to the crank arm linkage rod (5), and the electric push rod (10) is driven by a lifting motor (9); the fork travel fulcrum (7) on the extra-long fork (6) is connected to a fork travel chain (12), the fork travel chain (12) is connected to a travel sprocket (13), and the travel sprocket (13) is driven by a travel motor (14), the fork travel chain (12) is installed on the periphery of a lifting platform (8), and an infrared probe (15) is arranged on the left side of the lifting platform (8).

2. The super-long fork unloading mechanism according to claim 1, characterized in that: There are multiple sets of crankshaft wheels on a fork.

3. The super-long fork unloading mechanism according to claim 1, characterized in that: The lifting crank arm (3) is connected in series to the crank arm linkage rod (5) via the crank arm hinge point (2).

4. The super-long fork unloading mechanism according to claim 1, characterized in that: The extra-long forks (6) are grouped in two, and each group is driven by a fork travel chain (12) and a travel sprocket (13) symmetrical on both sides.

5. The super-long fork unloading mechanism according to claim 1, characterized in that: The left side of the extra-long fork unloading mechanism is provided with a truck (18) and a cargo pallet (17), and cargo (16) can be placed on the upper end of the cargo pallet (17).

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