Lightweight high-speed belt pulley stacker

Abstract

The application discloses a light high-speed belt pulley falling stacker, and relates to the technical field of stereoscopic warehouses.The falling stacker comprises a stacker body, two shells are slidably connected to two stand columns of the stacker body, a loading platform is fixedly connected between the two shells, an anti-falling mechanism is arranged in the shell, the anti-falling mechanism comprises a first gear rack and a second gear, the first gear rack is fixedly connected to one side of the stand column away from the loading platform, the second gear is fixedly connected to a second fixing frame, a second rod is fixedly connected to one side of the second fixing frame, the second rod penetrates through and is slidably connected to one side of the shell, a second spring is fixedly connected between the second fixing frame and the inner wall of the shell, a first rod penetrates through and is slidably connected to the side wall of the shell, and one end of the first rod in the shell is fixedly connected with a first fixing frame.The gear teeth of the second gear are matched with the gear teeth on the first gear rack, the second gear cannot rotate, the locking of the loading platform is realized, and the downward falling of the loading platform is avoided.

Description

Technical Field

[0001] This invention relates to the field of automated warehouse technology, specifically a lightweight, high-speed stacker crane with pulleys. Background Technology

[0002] A stacker crane is a large warehousing equipment that moves goods from one location to another in a semi-automatic or fully automatic manner. According to a utility model patent with Chinese patent application number CN2019217038767, a high-speed stacker crane is disclosed, comprising a lower crossbeam and traveling wheels, the traveling wheels being rotatably mounted on the lower crossbeam; a servo motor, mounted on the lower crossbeam and connected to the traveling wheels; and a shock-absorbing component, located between the lower crossbeam and the servo motor, and connected to both. This utility model significantly improves the stacker crane's operating speed by using a high-speed servo motor, thus ensuring stacking efficiency. Simultaneously, the shock-absorbing component buffers the vibrations generated by the servo motor during operation, effectively reducing noise.

[0003] However, existing stacker cranes have the following drawbacks during use: after prolonged use, the cables are prone to breakage due to wear, resulting in the loading platform falling from a height; and the current protection devices of stacker cranes are ineffective, requiring the loading platform to reach a certain speed after falling before activating the protection device, which also poses a significant safety hazard before the loading platform reaches that speed, potentially leading to device malfunction. Therefore, this invention provides a lightweight, high-speed stacker crane with pulleys. Summary of the Invention

[0004] The purpose of this invention is to provide a lightweight, high-speed stacker with pulleys.

[0005] The technical problem solved by this invention is that after long-term use, the cables of a stacker crane are prone to breakage due to wear, resulting in the loading platform falling from a height. Currently, the protection devices of stacker cranes are not very effective, and they only activate after the loading platform has fallen to a certain speed. However, there is also a significant safety hazard before the loading platform reaches the speed, and the device may malfunction. Therefore, this invention provides a lightweight, high-speed stacker crane with pulleys.

[0006] This invention can be achieved through the following technical solution: a lightweight high-speed stacker crane with pulleys, comprising a stacker body, a housing slidably connected to two columns of the stacker body, a loading platform fixed between the two housings, and an anti-fall mechanism provided inside the housing, the anti-fall mechanism comprising a first rack and a second gear; the first rack is fixedly connected to the side of the column away from the loading platform; the second gear is fixedly connected to a second fixed frame, a second rod is fixedly connected to one side of the second fixed frame, and the second rod passes through and is slidably connected to one side of the housing.

[0007] A further technical improvement of the present invention is that: a second spring is fixedly connected between the second fixing frame and the inner wall of the housing; a first rod is also slidably connected through the side wall of the housing; a first fixing frame is fixedly connected to one end of the first rod located inside the housing; a first gear is rotatably connected to the first fixing frame; a cable is wound around the hook at the top of the loading platform; the cable passes through the housing and is wound around the guide wheel on the first fixing frame; and a first spring is fixedly connected between the first fixing frame and the inner wall of the housing.

[0008] A further technical improvement of the present invention is that a U-shaped piston cylinder is fixedly connected to the inner wall of the housing, and the two piston rods of the U-shaped piston cylinder are respectively located on one side of the first fixed frame and the second fixed frame.

[0009] A further technical improvement of the present invention is that: two guide rails are symmetrically fixed to the top of the loading platform, a loading plate is slidably connected to the top of the guide rails, triangular blocks are fixed to both sides of the loading plate, a rectangular block is fixed to the top of the loading platform, a groove is opened on the side of the rectangular block near the loading plate, a trapezoidal block is slidably connected in the groove, and one end of the trapezoidal block is fixed to the inner wall of the groove by a No. 4 spring.

[0010] A further technical improvement of the present invention is as follows: a groove is provided at the bottom center of the loading plate, and a No. 3 rod is rotatably connected at the top center of the groove. A No. 3 gear is sleeved and fixed to the outside of the No. 3 rod, and a No. 3 rack is fixed to the top of the loading platform; two push rods are also fixed to the outside of the No. 3 rod; a cavity is provided inside the loading plate, and a clamping plate is slidably connected inside the cavity; an L-shaped plate is fixed to the two clamping plates on their adjacent sides, and the two L-shaped plates are respectively located on both sides of the No. 3 rod; a No. 3 spring is also fixed between the clamping plate and the inner wall of the groove.

[0011] A further technical improvement of the present invention is that: a No. 4 rod is fixedly connected to the clamping plate on the side away from the L-shaped plate, and through holes are opened on both sides of the carrying plate, the through holes are connected to the groove, and the No. 4 rod and the through holes are in a sliding fit state; a hydraulic cylinder is installed on the top of the loading platform, a baffle is fixedly connected to the end of the output rod of the hydraulic cylinder, and a No. 2 rack is fixedly connected to the other side of the baffle.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This invention incorporates a fall prevention mechanism. When the cable breaks, the force exerted by the cable on the first fixing frame disappears, causing the first fixing frame to return to its initial position under the elastic force of the first spring. This causes the piston rod at one end of the U-shaped piston cylinder to press against one side of the second fixing frame, which in turn causes the second fixing frame to move the second gear towards the rack. This allows the teeth of the second gear to engage with the teeth on the rack, preventing the second gear from rotating and thus locking the loading platform to prevent it from falling.

[0014] 2. In this invention, the cable is taut without breaking. The cable moves the first fixing frame towards the rack, so that the first gear and the first rack are engaged. When the loading platform slides up and down along the column, the first rack and the first gear engage, which improves the stability of the loading platform's movement, reduces the vibration generated when the loading platform moves up and down, and provides better protection for the goods.

[0015] 3. In this invention, when the loading plate moves along the guide rail to the top of the loading platform, the triangular block will press against the trapezoidal block, causing the trapezoidal block to retract into the groove. At the same time, the second spring is compressed. When the triangular block leaves the trapezoidal block, the elastic force of the second spring will cause the trapezoidal block to return to its initial position, thus restricting the triangular block from moving in the opposite direction. At this time, one side of the loading plate also contacts the second rack at the end of the output rod of the hydraulic cylinder. Therefore, the loading plate will be fixed on the top of the loading platform, preventing the loading plate from sliding randomly on the top of the loading platform and improving the stability of cargo transportation. Attached Figure Description

[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the cross-sectional structure connection at the shell in this invention;

[0018] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure connection at the loading plate in this invention;

[0020] Figure 4 In this invention Figure 1 A magnified view of a section at point A in the middle;

[0021] Figure 5 In this invention Figure 3 A magnified view of a section at point B in the middle;

[0022] Figure 6 In this invention Figure 3A magnified view of a section at point C.

[0023] In the diagram: 1. Stacker crane body; 2. Pulley dropper; 3. Cable; 4. Column; 5. Loading platform; 6. Housing; 7. Rack No. 1; 8. Gear No. 1; 9. Fixing frame No. 1; 10. Rod No. 1; 11. Spring No. 1; 12. Rod No. 2; 13. Fixing frame No. 2; 14. Spring No. 2; 15. Gear No. 2; 16. U-shaped piston cylinder; 17. Guide rail; 18. Loading plate; 19. Triangular block; 20. Rectangular block; 21. Trapezoidal block; 22. Rod No. 3; 23. Gear No. 3; 24. Rack No. 3; 25. Push rod; 26. Clamping plate; 27. L-shaped plate; 28. Spring No. 3; 29. ​​Rod No. 4; 30. Hydraulic cylinder; 31. Rack No. 2; 32. Baffle. Detailed Implementation

[0024] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided.

[0025] Please see Figures 1-6 As shown, a lightweight high-speed stacker crane with pulleys includes a stacker body 1. A pulley 2 is installed on a vertically arranged guide rail 17 on the stacker body 1. The lifting cable 3 passes around the pulley 2. When the loading platform 5 is lifted, the loading platform 5 moves together with the cable 3 and the pulley 2. In this way, the cable 3 will not sway under the action of its own weight and guidance of the pulley 2, which solves the problem of the lifting cable 3 swaying too much when the stacker crane is traveling at high speed in existing lightweight high-speed stackers.

[0026] The stacker crane body 1 has two uprights 4, and a loading platform 5 is slidably arranged between the two uprights 4. Housings 6 are fixed to the left and right sides of the loading platform 5, and the housings 6 are fitted onto and slidably connected to the outer surfaces of the uprights 4. An anti-fall mechanism is installed inside the housing 6, which includes a first rack 7 and a first gear 8. The first rack 7 is fixed to the surface of the upright 4, and the first gear 8 is rotatably connected to a first fixed frame 9. A first rod 10 is fixed to the side of the first fixed frame 9 away from the first gear 8, and the first rod 10 passes through and slidably connects to the side wall of the housing 6. A first spring is fixed between the first fixed frame 9 and the housing 6. 11; A hook is fixed to the top of the loading platform 5, and a cable 3 is wound around the hook. The cable 3 passes over the guide wheel on the side wall of the first fixed frame 9. When the cable 3 is not broken, the cable 3 is in a taut state. The cable 3 moves the first fixed frame 9 towards the rack, so that the first gear 8 and the first rack 7 are in a meshing state. When the loading platform 5 slides up and down along the column 4, the first rack 7 and the first gear 8 will mesh, which improves the stability of the movement of the loading platform 5, reduces the vibration generated when the loading platform 5 moves up and down, and has a better protection effect on the goods.

[0027] On the side of the housing 6 away from the column 4, a second rod 12 is also slidably connected through it. One end of the second rod 12, located inside the housing 6, is fixedly connected to a second fixing bracket 13. A second spring 14 is fixedly connected between the second fixing bracket 13 and the inner wall of the housing 6. A second gear 15 is fixedly installed at the other end of the second fixing bracket 13. A U-shaped piston cylinder 16 is fixedly connected to the inner wall of the housing 6, and the piston rods at both ends of the U-shaped piston cylinder 16 can contact the side walls of the two fixing brackets. When the cable 3 is broken, the force exerted by the cable 3 on the first fixing bracket 9 disappears, causing the first fixing bracket 9 to... Under the elastic force of spring 11, it returns to its initial position, causing gear 8 to disengage from the rack. During the retraction process, the first fixing frame 9 will press the piston rod at one end of the U-shaped piston cylinder 16, causing the piston rod at the other end of the U-shaped piston cylinder 16 to press one side of the second fixing frame 13. This causes the second fixing frame 13 to drive gear 15 to move towards the rack, so that the teeth of gear 15 engage with the teeth on the rack. Since gear 15 cannot rotate, it will lock the loading platform 5 and prevent the loading platform 5 from falling downwards.

[0028] Two guide rails 17 are symmetrically fixed to the top of the loading platform 5. A carrying plate 18 is slidably connected to the top of the guide rails 17. Triangular blocks 19 are fixed to both sides of the carrying plate 18. A rectangular block 20 is fixed to the top of the loading platform 5. A groove is opened on the side of the rectangular block 20 near the carrying plate 18. A trapezoidal block 21 is slidably connected in the groove. One end of the trapezoidal block 21 is fixed to the inner wall of the groove by a No. 4 spring. When the carrying plate 18 moves along the guide rails 17 to the top of the loading platform 5, the triangular blocks 19 will press against the trapezoidal block 21. This causes the trapezoidal block 21 to retract into the groove, while the fourth spring is compressed. When the triangular block 19 leaves the trapezoidal block 21, the elastic force of the fourth spring will cause the trapezoidal block 21 to return to its initial position, thus restricting the triangular block 19 from moving in the opposite direction. At this time, one side of the loading plate 18 also contacts the second rack 31 at the end of the output rod of the hydraulic cylinder 30. Therefore, the loading plate 18 will be fixed on the top of the loading platform 5, preventing the loading plate 18 from sliding freely on the top of the loading platform 5 and improving the stability of cargo transportation.

[0029] A groove is formed at the bottom center of the loading platform 18, and a third rod 22 is rotatably connected to the top center of the groove. A third gear 23 is sleeved and fixed to the outside of the third rod 22, and a third rack 24 is fixed to the top of the loading platform 5. Two push rods 25 are also fixed to the outside of the third rod 22. A cavity is provided inside the loading platform 18, and a clamping plate 26 is slidably connected inside the cavity. An L-shaped plate 27 is fixed to each clamping plate 26 on its closest side, and the two L-shaped plates 27 are located on both sides of the third rod 22. There is also a gap between the clamping plate 26 and the inner wall of the trough. A third spring 28 is fixedly connected; when the carrying plate 18 slides along the guide rail 17, it will cause the third gear 23 and the third rack 24 to mesh, causing the third gear 23 to rotate. The third gear 23 drives the third rod 22 to rotate, and the third rod 22 drives the two push rods 25 to rotate. The two push rods 25 respectively squeeze the two L-shaped plates 27, causing the two clamping plates 26 to move in opposite directions. The two clamping plates 26 clamp the goods on the top of the carrying plate 18, preventing the goods from sliding freely on the top of the carrying plate 18 and ensuring the stability of the goods during up and down transportation.

[0030] A fourth rod 29 is fixedly connected to the side of the clamping plate 26 away from the L-shaped plate 27. Through holes are opened on both sides of the carrying plate 18, communicating with the groove. The fourth rod 29 and the through holes are in a sliding fit. A hydraulic cylinder 30 is installed on the top of the loading platform 5. A baffle 32 is fixedly connected to the end of the output rod of the hydraulic cylinder 30. A second rack 31 is fixedly connected to the side of the baffle 32 near the carrying plate 18. When it is necessary to push the carrying plate 18 away from the top of the loading platform 5, the hydraulic cylinder 30 is activated, causing the second rack 31 at the end of the output rod of the hydraulic cylinder 30 to mesh with the third gear 23, causing the third gear... Wheel 23 drives rod 22 to rotate, rod 22 drives push rod 25 to leave L-shaped plate 27, and with the elastic force of spring 28, the two clamping plates 26 move in opposite directions, and rod 29 squeezes trapezoidal block 21, so that trapezoidal block 21 returns to its initial position. At this time, trapezoidal block 21 no longer restricts the movement of triangular block 19, which will facilitate the push of loading plate 18 from the top of loading platform 5. After rack 31 moves a certain distance, baffle 32 will contact loading plate 18. As hydraulic cylinder 30 continues to work, baffle 32 pushes loading plate 18 away from loading platform 5.

[0031] In use, when the cable 3 is not broken, it remains taut. The cable 3 moves the first fixing bracket 9 towards the rack, causing the first gear 8 and the first rack 7 to mesh. This meshing motion between the rack 7 and the first gear 8 improves the stability of the loading platform 5's movement, reduces vibration during its vertical movement, and provides better protection for the goods. When the cable 3 breaks, the force exerted by the cable 3 on the first fixing bracket 9 disappears, allowing the first fixing bracket 9 to... Under the elastic force of the first spring 11, the first fixing frame 9 returns to its initial position, causing the first gear 8 to disengage from the rack. During the retraction process, the first fixing frame 9 will press the piston rod at one end of the U-shaped piston cylinder 16, causing the piston rod at the other end of the U-shaped piston cylinder 16 to press one side of the second fixing frame 13. This causes the second fixing frame 13 to drive the second gear 15 to move towards the rack, so that the teeth of the second gear 15 engage with the teeth on the rack. Since the second gear 15 cannot rotate, it will lock the loading platform 5 and prevent the loading platform 5 from falling downwards.

[0032] When the loading plate 18 slides along the guide rail 17, it causes the meshing motion between the third gear 23 and the third rack 24, causing the third gear 23 to rotate. The third gear 23 drives the third rod 22 to rotate, which in turn drives the two push rods 25 to rotate. The two push rods 25 press against the two L-shaped plates 27, causing the two clamping plates 26 to move towards each other. The two clamping plates 26 clamp the goods on top of the loading plate 18, preventing the goods from sliding freely on top of the loading plate 18 and ensuring the stability of the goods during up and down transportation. When the loading plate 18 moves a certain distance along the guide rail 17, the triangular block 19 presses against the trapezoidal block 21, causing the trapezoidal block 21 to retract into the groove. At the same time, the fourth spring is compressed. When the triangular block 19 leaves the trapezoidal block 21, the elastic force of the fourth spring causes the trapezoidal block 21 to return to its initial position, thus restricting the triangular block 19 from moving in the opposite direction. At this time, one side of the loading plate 18 is also in contact with the end of the output rod of the hydraulic cylinder 30. The second rack 31 contacts the third gear, thus fixing the loading plate 18 to the top of the loading platform 5, preventing the loading plate 18 from sliding freely on the top of the loading platform 5 and improving the stability of cargo transportation; when it is necessary to push the loading plate 18 away from the top of the loading platform 5, the hydraulic cylinder 30 is activated, so that the second rack 31 at the output rod end of the hydraulic cylinder 30 meshes with the third gear 23, causing the third gear 23 to drive the third rod 22 to rotate, and the third rod 22 drives the push rod 25 to move away from the L-shaped plate 27. With the elastic force of spring 28, the two clamps 26 move in opposite directions, and the rod 29 presses the trapezoidal block 21, causing the trapezoidal block 21 to return to its initial position. At this time, the trapezoidal block 21 no longer restricts the movement of the triangular block 19, which will facilitate the ejection of the loading plate 18 from the top of the loading platform 5. After the rack 31 moves a certain distance, the baffle 32 will contact the loading plate 18. As the hydraulic cylinder 30 continues to work, the baffle 32 pushes the loading plate 18 away from the loading platform 5.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A lightweight high-speed stacker crane with pulley system, comprising a stacker body (1), characterized in that: The stacker crane body (1) has two uprights (4) with a housing (6) slidably connected to them. A loading platform (5) is fixed between the two housings (6). An anti-fall mechanism is provided inside the housing (6). The anti-fall mechanism includes a first rack (7) and a second gear (15). The first rack (7) is fixed to the side of the upright (4) away from the loading platform (5). The second gear (15) is fixed to the second fixed frame (13). A second rod (12) is fixed to one side of the second fixed frame (13). The second rod (12) passes through and is slidably connected to one side of the housing (6). The top of the loading platform (5) is symmetrically fixed with two guide rails (17), and the top of the guide rails (17) is slidably connected with a loading plate (18). Triangular blocks (19) are fixed on both sides of the loading plate (18), and a rectangular block (20) is fixed on the top of the loading platform (5). The rectangular block (20) has a groove on the side near the loading plate (18), and a trapezoidal block (21) is slidably connected in the groove. One end of the trapezoidal block (21) is fixed to the inner wall of the groove by a No. 4 spring. The bottom center of the loading plate (18) has a groove, and the top center of the groove is rotatably connected to a No. 3 rod (22). A No. 3 gear (23) is sleeved and fixed to the outside of the No. 3 rod (22). A No. 3 rack (24) is fixed to the top of the loading platform (5). Two push rods (25) are also fixed to the outside of the No. 3 rod (22). The inside of the loading plate (18) is provided with a cavity. A clamping plate (26) is slidably connected in the cavity. An L-shaped plate (27) is fixed to the two clamping plates (26) on the side that is close to each other. The two L-shaped plates (27) are located on both sides of the No. 3 rod (22). A No. 3 spring (28) is also fixed between the clamping plate (26) and the inner wall of the groove. The clamping plate (26) has a fourth rod (29) fixedly connected to the side away from the L-shaped plate (27). The loading plate (18) has through holes on both sides, which are connected to the groove. The fourth rod (29) and the through holes are in a sliding fit. The top of the loading platform (5) is equipped with a hydraulic cylinder (30). The output rod end of the hydraulic cylinder (30) is fixedly connected with a baffle (32). The other side of the baffle (32) is fixedly connected with a second rack (31).

2. The lightweight high-speed stacker crane with pulley system according to claim 1, characterized in that, A second spring (14) is fixed between the second fixing frame (13) and the inner wall of the housing (6). A first rod (10) is also slidably connected through the side wall of the housing (6). A first fixing frame (9) is fixed to one end of the first rod (10) located inside the housing (6). A first gear (8) is rotatably connected to the first fixing frame (9). A cable (3) is wound around the hook on the top of the loading platform (5). The cable (3) passes through the housing (6) and is wound around the guide wheel on the first fixing frame (9). A first spring (11) is fixed between the first fixing frame (9) and the inner wall of the housing (6).

3. A lightweight high-speed stacker crane with pulley system according to claim 1, characterized in that, A U-shaped piston cylinder (16) is fixed to the inner wall of the housing (6), and the two piston rods of the U-shaped piston cylinder (16) are located on one side of the first fixed frame (9) and the second fixed frame (13), respectively.

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