Intelligent cargo handling equipment for coal mines

By designing a limiting mechanism on the intelligent warehouse transportation forklift, and utilizing the drive motor and the limiting mechanism, the problem of pallet displacement due to inertia during high-speed transportation is solved, achieving stable pallet lifting and protection, and improving transportation safety.

CN224430094UActive Publication Date: 2026-06-30QILU YUNSHANG DIGITAL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QILU YUNSHANG DIGITAL TECH CO LTD
Filing Date
2025-07-23
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

During high-speed transport, pallets on existing intelligent warehouse forklifts are prone to displacement due to inertia, lacking effective protection and posing a safety hazard.

Method used

A smart cargo handling device for coal mine storage was designed. It adopts a limiting mechanism, including a transmission unit and a protection unit. The drive motor drives the lead screw to rotate, and the movable plate and forklift arm move vertically. The device uses a force block, movable block, spring and gear mechanism to achieve stable lifting and protection of the pallet.

Benefits of technology

It effectively prevents pallets from shifting due to inertia during high-speed transportation, improving transportation safety and ensuring pallet stability and protective effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an intelligent warehousing and cargo handling device for coal mines, relating to the field of intelligent warehousing and transportation vehicles. It includes a forklift front end and a drive motor installed on the top horizontal plate of the forklift front end to provide power for the rotation of a lead screw. A movable plate is also installed on the outer wall of the forklift front end, vertically slidably connected to the outer walls of two vertical plates at the forklift front end, and threadedly connected to the outer wall of the lead screw via a slider. A forklift arm is fixed to the outer wall of the movable plate to provide support for lifting the pallet. This utility model, by setting a limiting mechanism, provides power for the vertical movement of the movable plate and forklift arm by rotating the lead screw driven by the drive motor. This allows the forklift arm, inserted into the bottom of the pallet, to lift the pallet. During the lifting process, the force-bearing block receives a reaction force from the pallet, giving the protective block an upward rotating squeezing force, causing the end of the forklift arm to be at a right angle to the protective block, thus protecting the end of the forklift arm and the lifted pallet.
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Description

Technical Field

[0001] This utility model relates to the field of intelligent warehousing and transportation vehicles, specifically to an intelligent warehousing and cargo handling device for coal mines. Background Technology

[0002] Smart warehousing refers to a link in the logistics process that supports "multi-person + remote + simultaneous" inventory counting. Inventory counting can be carried out simultaneously with inbound and outbound accounting. The inventory counting is very intuitive, reproduces the inventory situation of historical periods, and facilitates financial auditing.

[0003] In existing technologies, in intelligent warehousing, goods are generally handled by transport forklifts. An automatic lifting forklift arm installed on one side of the transport forklift inserts into the bottom gap of the pallet to lift the pallet containing materials for transport. To facilitate the insertion of the forklift arm, the forklift arm is generally in a horizontal position and there is no protective plate for the pallet. During the relatively fast travel of the transport vehicle, the pallet is at risk of displacement due to inertia. Based on this, this utility model proposes an intelligent warehousing goods handling device for coal mines. Utility Model Content

[0004] The purpose of this utility model is to provide an intelligent coal mine warehousing and cargo handling device in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a coal mine intelligent warehousing and cargo handling device, including a forklift front end, and a drive motor installed on the top horizontal plate of the forklift front end to provide power for the rotation of the lead screw. The outer wall of the forklift front end is also equipped with a movable plate that is vertically slidably connected to the outer wall of the two vertical plates of the forklift front end and threadedly connected to the outer wall of the lead screw through a slider. The outer wall of the movable plate is fixed with a forklift arm that provides support for lifting the pallet.

[0006] It also includes a limiting mechanism installed on the forklift arm to protect the pallet being lifted;

[0007] The limiting mechanism includes a transmission unit and a protection unit;

[0008] The transmission unit is used to provide power for the movement of the protective unit;

[0009] The protective unit is used to protect the pallet during transportation.

[0010] As a further embodiment of this utility model: the transmission unit includes a force-bearing block, a movable block, a spring, a transmission rod, and a rack;

[0011] The force-bearing block is vertically slidably installed inside the forklift arm and extends to the outside of the top of the forklift arm. The force-bearing block is used to receive the reaction force from the pallet during the process of lifting the pallet.

[0012] The movable block is axially slidably installed inside the forklift arm. One end of the movable block is formed with a pressure-receiving inclined surface, and the pressure-receiving inclined surface is in contact with the bottom of the force-receiving block. The movable block is used to synchronously push the transmission rod fixed on the outer wall and the rack fixed at the end of the transmission rod to move axially. The axially moving rack is used to give the gear rotation thrust.

[0013] The two ends of the spring are respectively engaged with the inner wall of the forklift arm and the outer wall of the movable block, and the spring is used to provide a restoring force for the movable block after it has been moved.

[0014] As a further improvement of this utility model: the protective unit includes a protective block and a gear;

[0015] The protective block is rotatably connected to the inner side of the forklift arm end via a shaft and extends to the outer side of the forklift arm end. The gear is fixed to the outer wall of the shaft and meshes with the outer wall of the rack. The gear is used to receive the squeezing force from the rack to drive the protective block to rotate, so that the protective block and the end of the forklift arm are in an "L" shape to protect the pallet.

[0016] As a further embodiment of this utility model: the end of the forklift arm is formed with a rotating groove for the protective block to rotate, and the gear outer wall teeth are distributed at 270 degrees on the outer wall of the shaft of the protective block.

[0017] As a further embodiment of this utility model: the inside of the forklift arm is formed with a sliding groove for axial movement of the rack, and the outer wall of the rack meshes with the outer wall of the gear.

[0018] As a further improvement of this utility model: the distance by which the force-bearing block moves downward to be level with the top of the forklift arm is the same as the distance by which the rack rotates the gear by ninety degrees.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] By setting a limiting mechanism, the vertical movement of the movable plate and forklift arm can be powered by the rotation of the lead screw driven by the drive motor. This allows the forklift arm, inserted into the bottom of the pallet, to lift the pallet. During the lifting process, the force block receives the reaction force from the pallet, which in turn gives the protective block an upward rotating squeezing force, making the end of the forklift arm and the protective block at a right angle, thus protecting the end of the forklift arm and the lifted pallet. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the installation structure of the lead screw and movable plate of this utility model;

[0023] Figure 3This is a schematic diagram of the limiting mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the holder of this utility model.

[0025] In the diagram: 1. Forklift front end; 2. Drive motor; 3. Lead screw; 4. Movable plate; 5. Forklift arm; 6. Limiting mechanism; 601. Force-bearing block; 602. Movable block; 603. Spring; 604. Transmission rod; 605. Rack; 606. Protective block; 607. Gear; 7. Pallet. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-4 In this embodiment of the utility model, the intelligent warehousing and cargo handling device for coal mines includes a forklift front end 1, and a drive motor 2 installed on the top horizontal plate of the forklift front end 1 to provide power for the rotation of the lead screw 3. The outer wall of the forklift front end 1 is also equipped with a movable plate 4 that is vertically slidably connected to the outer wall of the two vertical plates of the forklift front end 1 and threadedly connected to the outer wall of the lead screw 3 through a slider. The outer wall of the movable plate 4 is fixed with a forklift arm 5 that provides support for lifting the pallet 7.

[0028] It also includes a limiting mechanism 6 provided on the forklift arm 5 to protect the pallet 7 being lifted;

[0029] The limiting mechanism 6 includes a transmission unit and a protection unit;

[0030] The transmission unit is used to provide power for the movement of the protective unit;

[0031] The protective unit is used to protect pallet 7 during transportation;

[0032] The transmission unit includes a force-receiving block 601, a movable block 602, a spring 603, a transmission rod 604, and a rack 605;

[0033] The force-bearing block 601 is vertically slidably installed inside the forklift arm 5 and extends to the outside of the top of the forklift arm 5. The force-bearing block 601 is used to receive the reaction force from the pallet 7 during the process of lifting the pallet 7.

[0034] The movable block 602 is axially slidably installed inside the forklift arm 5. One end of the movable block 602 is formed with a pressure-receiving inclined surface, and the pressure-receiving inclined surface is in contact with the bottom of the force-receiving block 601. The movable block 602 is used to synchronously push the transmission rod 604 fixed on the outer wall and the rack 605 fixed at the end of the transmission rod 604 to move axially. The axially moving rack 605 is used to give the gear 607 rotational thrust.

[0035] The two ends of the spring 603 are respectively engaged with the inner wall of the forklift arm 5 and the outer wall of the movable block 602. The spring 603 is used to provide a restoring force for the movable block 602 after it has been moved.

[0036] The protective unit includes a protective block 606 and a gear 607;

[0037] The protective block 606 is rotatably connected to the inner side of the end of the forklift arm 5 via a shaft and extends to the outer side of the end of the forklift arm 5. The gear 607 is fixed to the outer wall of the shaft and meshes with the outer wall of the rack 605. The gear 607 is used to receive the squeezing force from the rack 605 to drive the protective block 606 to rotate, so that the protective block 606 and the end of the forklift arm 5 are in an "L" shape to protect the pallet 7.

[0038] In this embodiment: the forklift arm 5 is moved to the bottom of the bottom slot of the pallet 7 by the forklift front end 1. The drive motor 2 is started. The operation of the drive motor 2 will drive the lead screw 3 connected to the output end to rotate. The rotating lead screw 3 gives the movable plate 4 an upward force, so that the movable plate 4 drives the forklift arm 5 fixed on the outer wall and the pallet 7 that the top of the forklift arm 5 contacts to move upward synchronously, so that the top of the forklift arm 5 contacts the bottom of the pallet 7 and the pallet 7 is separated from the ground, thereby transporting the materials on the pallet 7.

[0039] During the contact process between the forklift arm 5 and the bottom of the pallet 7, the force-bearing block 601 at the top of the forklift arm 5 will also contact the bottom of the pallet 7 and receive a reaction force from the pallet 7, which will enter the interior of the forklift arm 5. The top of the force-bearing block 601 is flush with the top of the forklift arm 5. The downward-moving force-bearing block 601 will exert a squeezing force on the inclined surface of the bottom-contacting movable block 602. The force-bearing movable block 602 will slide axially along the internal axis of the forklift arm 5 under the external squeezing force. The axial movement of the movable block 602 will exert a squeezing force on the spring 603 and simultaneously drive the transmission rod 604. The rack 605 moves, and the axially moving rack 605 provides rotational thrust to the gear 607 meshing with the outer wall, causing the gear 607 fixed to the outer wall of the shaft of the protective block 606 to rotate. This synchronously drives the protective block 606 to rotate 90 degrees circumferentially around the shaft, so that the protective block 606 and the end of the forklift arm 5 are in an "L" shape, protecting the pallet 7 and the side away from the front end 1 of the forklift. It also cooperates with the concave groove of the pallet 7 to further protect the movement of the pallet 7, preventing the pallet 7 from shifting due to inertia due to excessive vehicle speed, and further improving safety.

[0040] Please refer to this carefully. Figures 1-4 The end of the forklift arm 5 is formed with a rotating groove for the protective block 606 to rotate. The outer wall teeth of the gear 607 are distributed at 270 degrees on the outer wall of the shaft of the protective block 606. The inside of the forklift arm 5 is formed with a sliding groove for the rack 605 to move axially. The outer wall of the rack 605 meshes with the outer wall of the gear 607. The distance by which the force block 601 moves downward to be flush with the top of the forklift arm 5 is the same as the distance by which the rack 605 rotates the gear 607 by 90 degrees.

[0041] In this embodiment: With this structure, after the force block 601 is subjected to the squeezing force from the pallet 7 and enters the interior of the forklift arm 5, the rack 605 provides the squeezing thrust to the gear 607, which can rotate the gear 607 by ninety degrees, so that the protective block 606 is vertically distributed at the end of the forklift arm 5, and the protective block 606 will always remain in a vertical state while the pallet is always in contact with the force block 601.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A coal mine intelligent warehouse goods carrying device, comprising a forklift front end (1), characterized in that, It also includes a drive motor (2) installed on the top horizontal plate of the forklift front end (1) to provide power for the rotation of the lead screw (3). The outer wall of the forklift front end (1) is also equipped with a movable plate (4) that is vertically slidably connected to the outer wall of the two vertical plates of the forklift front end (1) and threadedly connected to the outer wall of the lead screw (3) by a slider. The outer wall of the movable plate (4) is fixed with a forklift arm (5) that provides support for lifting the pallet (7). It also includes a limiting mechanism (6) provided on the forklift arm (5) to protect the pallet (7) being lifted. The limiting mechanism (6) includes a transmission unit and a protection unit; The transmission unit is used to provide power for the movement of the protective unit; The protective unit is used to protect the pallet (7) during transportation.

2. The intelligent coal mine warehousing and cargo handling device according to claim 1, characterized in that, The transmission unit includes a force-receiving block (601), a movable block (602), a spring (603), a transmission rod (604), and a rack (605); The force-bearing block (601) is vertically slidably installed inside the forklift arm (5) and extends to the outside of the top of the forklift arm (5). The force-bearing block (601) is used to receive the reaction force from the pallet (7) during the lifting process of the pallet (7). The movable block (602) is axially slidably installed inside the forklift arm (5). One end of the movable block (602) is formed with a pressure-bearing inclined surface, and the pressure-bearing inclined surface is in contact with the bottom of the force block (601). The movable block (602) is used to synchronously push the transmission rod (604) fixed on the outer wall and the rack (605) fixed at the end of the transmission rod (604) to move axially. The axially moving rack (605) is used to give the gear (607) rotational thrust. The two ends of the spring (603) are respectively engaged with the inner wall of the forklift arm (5) and the outer wall of the movable block (602). The spring (603) is used to provide a restoring force for the movable block (602) after it has been moved.

3. The intelligent coal mine warehousing and cargo handling device according to claim 1, characterized in that, The protective unit includes a protective block (606) and a gear (607). The protective block (606) is rotatably connected to the inner side of the end of the forklift arm (5) via a shaft and extends to the outer side of the end of the forklift arm (5). The gear (607) is fixed to the outer wall of the shaft and meshes with the outer wall of the rack (605). The gear (607) is used to receive the squeezing force from the rack (605) to drive the protective block (606) to rotate, so that the protective block (606) and the end of the forklift arm (5) are in an "L" shape to protect the pallet (7).

4. The intelligent coal mine warehousing and cargo handling device according to claim 3, characterized in that, The forklift arm (5) has a rotating groove formed at its end for the protective block (606) to rotate, and the gear (607) outer wall teeth are distributed at 270 degrees on the outer wall of the shaft of the protective block (606).

5. The intelligent coal mine warehousing and cargo handling device according to claim 3, characterized in that, The forklift arm (5) has a groove formed inside for the axial movement of the rack (605), and the outer wall of the rack (605) meshes with the outer wall of the gear (607).

6. The intelligent coal mine warehousing and cargo handling device according to claim 2, characterized in that, The distance by which the force-bearing block (601) moves downward to be level with the top of the forklift arm (5) is the same distance by which the rack (605) rotates the gear (607) by ninety degrees.