Anti-falling mechanism for lifting fork of stacking machine

Abstract

The anti-falling mechanism comprises a base, the top end of the base is fixedly connected with a stand column, one side of the stand column is provided with a square groove penetrating through the stand column, the two sides of the stand column are each provided with a sliding groove, sliding blocks are connected into the two sliding grooves in a sliding mode, one side of each sliding block is fixedly connected with a mounting plate, and the other side of each sliding block is fixedly connected with a clamping plate. Wherein one side of one sliding block is fixedly connected with a gear motor, a rotating shaft is rotationally connected between the two sliding blocks through a bearing, one end of the rotating shaft penetrates through the sliding blocks to be connected with the gear motor, and ratchet wheels are in key connection with the positions, located at the two ends, of the outer side of the rotating shaft. According to the device, the probability that the pallet fork falls off accidentally can be reduced, the damage rate of goods is reduced, the lifting of the goods can be met, the carrying efficiency of the device is improved, the movement of the goods can be met, and the convenience of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of stacker crane technology, and in particular to a mechanism for preventing stacker crane lifting forks from falling. Background Technology

[0002] Stacker cranes, as an important type of automated logistics equipment, are widely used in warehousing, logistics, and manufacturing industries to efficiently store and retrieve goods. With the continuous development of automation technology, especially the rapid progress of intelligent control and robotics technology in recent years, stacker cranes are gradually developing towards high automation and intelligence, greatly improving the efficiency and safety of warehouse management.

[0003] Traditional stacker cranes mostly rely on manual operation or simple mechanical control to select goods at different stacking heights and move them to designated locations when using forks to select goods. While their stability and safety have been adequately designed and considered, safety hazards still exist during operation. When goods are at a height, if the forks accidentally fall off, it can not only damage the goods but also cause serious personnel and equipment accidents. Therefore, it is necessary to improve the existing technology to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a mechanism to prevent stacker crane lifting forks from falling.

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

[0006] A stacker crane lifting fork anti-fall mechanism includes a base, a column fixedly connected to the top of the base, a square groove penetrating one side of the column, and sliding grooves on both sides of the column. Sliding blocks are slidably connected within the two sliding grooves, and mounting plates are fixedly connected to one side of the two sliding blocks. A lifting assembly for moving the mounting plate up and down is provided within the square groove, and a fork-lifting assembly for moving goods is provided at the top of the mounting plate. A circular groove is provided on one side of each of the two sliding blocks, and a rotating shaft is rotatably connected within the two circular grooves via bearings. A reduction motor for driving the rotating shaft is fixedly connected to one side of one of the sliding blocks. A ratchet is keyed to the outer side of the rotating shaft within the circular groove. Two electric push rods are fixedly connected to each of the two circular grooves, and the two electric push rods are evenly positioned below the ratchet. A toothed ring is fixedly connected to one side of each of the two electric push rods, and the toothed ring meshes with the ratchet.

[0007] As a further embodiment of this utility model, the lifting assembly includes a rack, which is vertically fixedly connected in a square groove, and a gear is keyed to the outside of the rotating shaft, and the gear meshes with the rack.

[0008] As a further embodiment of this utility model, the fork assembly includes two stacking forks, linear motors are fixedly connected to both sides of the mounting plate, a carriage is fixedly connected between the two linear motors, and the two stacking forks are fixedly connected to the top of the carriage.

[0009] As a further embodiment of this utility model, a control box is fixedly connected to one side of the column, and a display screen, a control button group and a storage battery are integrated on one side of the control box.

[0010] As a further embodiment of this utility model, a support platform is fixedly connected to one side of the column, and guardrails are fixedly connected to both sides of the support platform, with the control box located between the two guardrails.

[0011] As a further embodiment of this utility model, the bottom of the base is provided with multiple electric drive wheels, the surfaces of the multiple electric drive wheels are integrally formed with anti-slip textures, and a wheel-side motor is provided on one side of each of the multiple electric drive wheels.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model is equipped with a ratchet, and the ratchet is keyed to the outside of the rotating shaft. A fixed block is provided in the circular groove, and a pawl is rotatably connected in the fixed block. When the lifting mechanism moves the mounting plate up and down, the ratchet and pawl can engage, so that the rotating shaft can only rotate in one direction. When the lifting mechanism malfunctions and falls, the ratchet and pawl work together to stop the rotating shaft from rotating, thereby reducing the probability of the forks accidentally falling off, reducing the damage rate of goods, and improving safety.

[0014] 2. This utility model is equipped with a lifting assembly, which includes a rack, the rack being vertically welded in a square groove. A gear is keyed to the outside of the rotating shaft. The gear meshes with the rack, driving the sliders at both ends of the rotating shaft to move up and down, thereby driving the mounting plate and the forklift assembly to move up and down, satisfying the lifting and lowering of goods and increasing the efficiency of the device's handling.

[0015] 3. This utility model is equipped with a fork-lifting assembly, which includes two stacking forks. Linear motors are fixedly connected to both sides of the mounting plate by bolts. A carriage is fixedly connected between the two linear motors by bolts. The two stacking forks are welded to the top of the carriage. The linear motors drive the carriage to move the stacking forks in a linear motion, thereby lifting and transferring goods on the shelf, satisfying the need for moving goods and increasing the convenience of the device. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a stacker crane lifting fork anti-fall mechanism proposed in this utility model;

[0017] Figure 2 This is a partial cross-sectional view of the anti-fall mechanism for the lifting forks of a stacker crane proposed in this utility model.

[0018] Figure 3 This is a partially enlarged structural schematic diagram of a stacker crane lifting fork anti-fall mechanism proposed in this utility model;

[0019] Figure 4 This is a schematic cross-sectional view of the slider structure of the anti-fall mechanism for the lifting forks of a stacker crane proposed in this utility model;

[0020] In the diagram: 1. Base; 2. Mounting plate; 3. Column; 4. Square groove; 5. Slide; 6. Control box; 7. Guardrail; 8. Support platform; 9. Rack; 10. Gear; 11. Shaft; 12. Linear motor; 13. Stacking fork; 14. Carriage; 15. Slider; 16. Gear motor; 17. Circular groove; 18. Gear ring; 19. Electric push rod; 23. Electric drive wheel; 24. Ratchet. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. The described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Reference Figures 1-4A stacker crane lifting fork anti-fall mechanism includes a base 1, a column 3 fixedly connected to the top of the base 1, a square groove 4 penetrating one side of the column 3, and sliding grooves 5 on both sides of the column 3. Sliding blocks 15 are slidably connected within the two sliding grooves 5, and mounting plates 2 are fixedly connected to one side of the two sliding blocks 15. A lifting assembly for moving the mounting plate 2 up and down is provided within the square groove 4. A fork-lifting assembly for moving goods is provided at the top of the mounting plate 2. A circular groove 17 is provided on one side of each of the two sliding blocks 15, and a rotating shaft 11 is rotatably connected to the two circular grooves 17 via bearings. A drive rotating shaft 1 is fixedly connected to one side of one of the sliding blocks 15. A rotating geared motor 16 is provided. A ratchet 24 is keyed to the outer side of the rotating shaft 11 within a circular groove 17. Two electric push rods 19 are fixedly connected to each of the two circular grooves 17, and the two electric push rods 19 are evenly arranged below the ratchet 24. A toothed ring 18 is fixedly connected to one side of each of the two electric push rods 19, and the toothed ring 18 meshes with the ratchet 24. In use, the first pawl 18 engages with the ratchet 24 to stop the rotating shaft 11 from rotating. At this time, the adjustment component is activated to engage the first pawl 18 and the second pawl 25 with the ratchet 24, thereby locking the rotating shaft 11. This reduces the probability of the forks accidentally falling off, lowers the damage rate of goods, and improves safety.

[0023] The lifting assembly includes a rack 9, which is vertically welded into a square groove 4. A gear 10 is keyed to the outside of the rotating shaft 11, and the gear 10 meshes with the rack 9, enabling the rotating shaft 11 to drive the gear 10 to rotate. Since the gear 10 meshes with the rack 9, the gear 10 moves along the rack 9, thereby driving other components fixed to the gear 10 and the rotating shaft 11 to move up and down, achieving a lifting effect and improving the efficiency of cargo handling.

[0024] The forklift assembly includes two stacking forks 13. Linear motors 12 are fixedly connected to both sides of the mounting plate 2 by bolts. A carriage 14 is fixedly connected between the two linear motors 12 by bolts. The two stacking forks 13 are welded to the top of the carriage 14. The linear motors 12 can drive the carriage 14 and the stacking forks 13 to move, so that the stacking forks 13 can be inserted into the pallet and the goods can be moved out. This satisfies the forward and backward movement of the carriage 14 and the two stacking forks 13 fixed to its top, increasing the convenience of the device.

[0025] In this invention, a control box 6 is bolted to one side of the column 3. The control box 6 integrates a display screen, control button group, and battery on one side. The geared motor 16, linear motor 12, dual-axis cylinder 22, and wheel-side motors on the electric drive wheel 23 are electrically connected to the display screen, control button group, and battery on the control box 6, enabling corresponding operations via the control button group on the control box 6. A support platform 8 is welded to one side of the column 3. Guardrails 7 are bolted to both sides of the support platform 8, and the control box 6 is located between the two guardrails 7, allowing passage through the two guardrails 7. The protection control box 6 is designed to prevent damage from external impacts or vibrations, ensuring the safety of personnel during operation. The base 1 has multiple electric drive wheels 23 at its bottom. The surfaces of the multiple electric drive wheels 23 are integrally formed with anti-slip textures. Each of the multiple electric drive wheels 23 has a wheel-side motor on one side. By controlling the speed and direction of each wheel-side motor, the corresponding electric drive wheel 23 can be driven to rotate, which can realize the steering and path planning of the base 1. The wheel-side motor can stop the rotation of the motor through the resistance generated by the resistor or electromagnet, thereby locking the electric drive wheel 23.

[0026] Working principle: When the forks need to be moved, the device is moved to the designated position, and the reduction motor 16 is started, causing the rotating shaft 11 to drive the gear 10 to rotate. Since the gear 10 meshes with the rack 9, the gear 10 moves along the rack 9, causing the sliders 15 at both ends of the rotating shaft 11 to move along the slide groove 5, and causing the mounting plate 2 on one side of the slider 15 to move. When it moves to the designated height, the stacking fork 13 is aligned with the pallet at the bottom of the goods. The linear motor 12 is started, causing it to drive the carriage 14 and the stacking fork 13 to move, so that the stacking fork 13 is inserted into the pallet and the goods are removed. When the fork falls, the electric push rod 19 is started, causing it to drive the toothed ring 18 to move, so that the toothed ring 18 meshes with the ratchet 24, thereby locking the ratchet 24, and then locking the rotating shaft 11. This reduces the probability of the fork accidentally falling off, reduces the damage rate of goods, and improves safety.

[0027] Furthermore, although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stacker crane lifting fork anti-fall mechanism, comprising a base (1), characterized in that, A column (3) is fixedly connected to the top of the base (1). A square groove (4) is provided on one side of the column (3) and passes through the column (3). Sliding grooves (5) are provided on both sides of the column (3). Sliding blocks (15) are slidably connected in the two sliding grooves (5). A mounting plate (2) is fixedly connected to one side of the two sliding blocks (15). A lifting assembly for moving the mounting plate (2) up and down is provided in the square groove (4). A forklift assembly for moving goods is provided on the top of the mounting plate (2). A circular groove (17) is provided on one side of each of the two sliding blocks (15). (17) is connected to a rotating shaft (11) via a bearing. One of the sliders (15) is fixedly connected to a reduction motor (16) that drives the rotating shaft (11) to rotate. The outer side of the rotating shaft (11) is connected to a ratchet (24) in a circular groove (17). Two electric push rods (19) are fixedly connected in both circular grooves (17), and the two electric push rods (19) are evenly arranged below the ratchet (24). A toothed ring (18) is fixedly connected to one side of the two electric push rods (19), and the toothed ring (18) meshes with the ratchet (24).

2. The anti-fall mechanism for the lifting forks of a stacker crane according to claim 1, characterized in that, The lifting assembly includes a rack (9), which is vertically fixed in a square groove (4). A gear (10) is keyed to the outside of the rotating shaft (11), and the gear (10) meshes with the rack (9).

3. The anti-fall mechanism for the lifting forks of a stacker crane according to claim 1, characterized in that, The fork assembly includes two stacking forks (13), and linear motors (12) are fixedly connected to both sides of the mounting plate (2). A carriage (14) is fixedly connected between the two linear motors (12), and the two stacking forks (13) are fixedly connected to the top of the carriage (14).

4. The anti-fall mechanism for the lifting forks of a stacker crane according to claim 3, characterized in that, A control box (6) is fixedly connected to one side of the column (3), and a display screen, control button group and battery are integrated on one side of the control box (6).

5. The anti-fall mechanism for the lifting forks of a stacker crane according to claim 3, characterized in that, One side of the column (3) is fixedly connected to a support platform (8), and both sides of the support platform (8) are fixedly connected to guardrails (7), and the control box (6) is located between the two guardrails (7).

6. The anti-fall mechanism for the lifting forks of a stacker crane according to claim 4, characterized in that, The base (1) is provided with a plurality of electric drive wheels (23) at its bottom. The surfaces of the plurality of electric drive wheels (23) are integrally formed with anti-slip textures, and a wheel-side motor is provided on one side of each of the plurality of electric drive wheels (23).

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