Jacking mechanism of four-way shuttle vehicle

Abstract

The utility model relates to the technical field of logistics storage, discloses a jacking mechanism of a four-way shuttle vehicle, and solves the problems that a jacking mechanism of a conventional shuttle vehicle adopts rotation of an eccentric wheel to enable a movable side plate to move up and down to lift goods, the goods are in an arc-shaped track in the moving process, and at the moment, the goods tend to topple towards one side of the movable plate; a jacking assembly comprises a double-shaft motor, a bidirectional lead screw is arranged on the double-shaft motor, two sliding blocks are arranged on the bidirectional lead screw, two connecting plates are arranged on the two sliding blocks, a first connecting column is arranged between the two connecting plates, a rotating plate is arranged on the first connecting column, and a second rotating column is arranged at one end of the rotating plate. The double-shaft motor is started, the two-way lead screw rotates, the two sliding blocks get close to each other, and the rotating plate rotates from the horizontal state to the inclined state, so that the fixing blocks are driven to move upwards, the carrying plate moves upwards, and goods are lifted.

Description

Technical Field

[0001] This utility model relates to the field of logistics and warehousing technology, specifically to a lifting mechanism for a four-way shuttle vehicle. Background Technology

[0002] With the rapid development of the modern logistics and warehousing industry, the application of four-way shuttles is becoming increasingly widespread. Traditional four-way shuttles mostly use hydraulic lifting mechanisms. However, hydraulic lifting mechanisms have many problems, such as the need for multiple hydraulic cylinders, cumbersome piping, and frequent hydraulic oil leakage and pressure loss, which can not only contaminate the shuttle's operating environment and even the goods, but also lead to lifting failures. Moreover, it is difficult to guarantee the synchronization of the matching hydraulic cylinders, affecting the stability and accuracy of lifting. In addition, some existing lifting mechanisms use a combination of worm gear mechanisms, cam mechanisms, etc., which have poor stability in the lifting state, require high precision in component installation, and have high maintenance and manufacturing costs. Therefore, a new lifting mechanism is needed to solve the above problems and improve the reliability, stability, and efficiency of four-way shuttle lifting.

[0003] A Chinese patent with publication number CN220845327U discloses a body lifting mechanism for a four-way shuttle, including a motor, a drive shaft, a drive sprocket assembly, and two first drive wheel assemblies. The motor is fixedly mounted on a base plate. The drive shaft is mounted on the base plate via a first bearing seat. The two first drive wheel assemblies are respectively mounted at both ends of the drive shaft. Each first drive wheel assembly includes a first rotating shaft, a first eccentric wheel, and a first bearing. One end of the first rotating shaft is connected to the drive shaft, and the other end is used to mount the first eccentric wheel. The first bearing is mounted on the side of the first eccentric wheel away from the drive shaft.

[0004] The problem with the aforementioned technologies is that the lifting mechanism of conventional shuttle cars uses an eccentric wheel to rotate, causing the movable side plate to move up and down to lift the goods. During the movement of the goods, they will follow an arc trajectory. At this time, the goods tend to tilt to one side of the movable plate, which may cause the goods to tip over. Utility Model Content

[0005] The purpose of this invention is to provide a lifting mechanism for a four-way shuttle. By using this device, the problem of conventional shuttle lifting mechanisms using eccentric wheel rotation to move the movable side plate up and down to lift goods is solved. During the movement of goods, the goods will follow an arc trajectory, and at this time, the goods tend to tilt to one side of the movable plate, which may cause the goods to tip over.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lifting mechanism for a four-way shuttle, including a base, a carrying plate on the upper side of the base, and a lifting assembly between the base and the carrying plate. Two sets of lifting assemblies are symmetrically installed at both ends of the base. Each lifting assembly includes a dual-axis motor, which is mounted through the base. Moving components are installed on both drive ends of the dual-axis motor. Each moving component includes a bidirectional lead screw, which is rotatably mounted on the base. One end of the bidirectional lead screw is fixedly connected to the drive end of the dual-axis motor. Multiple sliding grooves are provided at the upper end of the base. Two sliding blocks are threaded through the bidirectional lead screw, and the sliding blocks are slidably connected to the sliding grooves. Two connecting plates are installed on the upper ends of the two sliding blocks. A connecting column one is installed between the two connecting plates. A rotating plate rotatably passes through the connecting column one. A rotating column two rotatably passes through the end of the rotating plate away from the connecting column one. Fixed blocks are installed at both ends of the rotating column two, and the upper ends of the fixed blocks are fixedly connected to the lower side of the carrying plate.

[0007] Start the dual-axis motor. The drive end of the dual-axis motor drives the two bidirectional lead screws to rotate, which causes the two sliding blocks on the bidirectional lead screws to move closer to each other. This causes the rotating plate to rotate, changing from a horizontal state to an inclined state. This causes the fixed block to move upward, which in turn causes the carrying plate to move upward, thereby lifting the goods. The four sets of moving components under the carrying plate simultaneously perform the lifting operation, so that the goods rise at a uniform speed and prevent the goods from tipping over.

[0008] Preferably, the drive ends of the dual-axis motors at both ends of the base rotate in the same direction and at the same speed.

[0009] By ensuring that the rotation direction and speed of the four bidirectional lead screws are the same, the load plate can rise at a uniform and stable speed.

[0010] Preferably, the two ends of the rotating plate are arranged in an arc shape.

[0011] To ensure that when the rotating plate rotates, the two ends of the rotating plate will not collide with the inner wall of the sliding groove, causing the rotating plate to get stuck and unable to rotate.

[0012] Preferably, the base has two balancing components in the middle. Each balancing component includes a gear sleeve 1, which is fixedly mounted on a bidirectional lead screw. Two symmetrical gear sleeves 1 are fitted with toothed belts. A rotating shaft is located in the middle of the toothed belt and is rotatably mounted on the base. A gear sleeve 2 is fixedly mounted on the outer side of the rotating shaft and is meshed with the toothed belt. A bevel gear 1 is mounted on one end of the rotating shaft. A support column is located on one side of the bevel gear 1 and is rotatably mounted on the base. A bevel gear 2 is mounted on the support column and is meshed with the bevel gear 1. A threaded column is threaded through the middle of the support column and is fixedly connected to the lower side of the carrying plate.

[0013] While the dual-axis motor drives the bidirectional lead screw to rotate, the first gear sleeve rotates, which in turn drives the toothed belt to rotate, causing the second gear sleeve to rotate. This, in turn, drives the rotating shaft to rotate, causing the first bevel gear to rotate, which in turn drives the second bevel gear to rotate, and in turn drives the support column to rotate. This causes the threaded column to move upward along the support column, which supports both ends of the load plate, sharing part of the weight of the goods and preventing the device from being damaged by excessive load.

[0014] Preferably, the distance between the upper end of the support column and the upper side of the base is less than the distance between the connecting plate and the upper side of the base.

[0015] When the rotating plate is not rotating, it is in a horizontal position, at which point the lower side of the loading plate is in contact with the upper end of the support column.

[0016] Preferably, the upper side of the carrier plate is provided with multiple friction grooves.

[0017] The friction groove increases the friction between the goods and the carrying plate, preventing the goods from falling off the carrying plate.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This utility model proposes a lifting mechanism for a four-way shuttle vehicle. Starting a dual-axis motor causes two bidirectional lead screws to rotate, bringing two sliding blocks on the lead screws closer together. This causes a rotating plate to rotate, changing from a horizontal to an inclined state, which in turn moves a fixed block upwards, thus moving the cargo platform upwards and lifting the goods. Four sets of moving components on the underside of the cargo platform simultaneously perform the lifting operation, ensuring the goods rise at a uniform speed and preventing them from tipping over. Attached Figure Description

[0020] Figure 1 This is an overall schematic diagram of the lifting mechanism of the four-way shuttle vehicle of this utility model;

[0021] Figure 2 This is a front view schematic diagram of the lifting mechanism of the four-way shuttle vehicle of this utility model;

[0022] Figure 3 This is a schematic diagram of the lifting mechanism of the four-way shuttle vehicle of this utility model in its lifting state.

[0023] Figure 4 This is a front sectional view of the lifting mechanism of the four-way shuttle vehicle of this utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of the lifting mechanism of the four-way shuttle vehicle of this utility model;

[0025] Figure 6 This is a schematic diagram of the moving component structure of the lifting mechanism of the four-way shuttle vehicle of this utility model;

[0026] Figure 7 This is a schematic diagram of the balancing component structure of the lifting mechanism of the four-way shuttle vehicle of this utility model;

[0027] In the diagram: 1. Base; 11. Sliding groove; 2. Carrying plate; 21. Friction groove; 3. Lifting assembly; 31. Dual-axis motor; 32. Moving assembly; 321. Two-way lead screw; 322. Sliding block; 323. Connecting plate; 324. Connecting column one; 325. Rotating plate; 326. Rotating column two; 327. Fixing block; 33. Balancing assembly; 331. Gear sleeve one; 332. Toothed belt; 333. Rotating shaft; 334. Gear sleeve two; 335. Bevel gear one; 336. Support column; 337. Bevel gear two; 338. Threaded column. Detailed Implementation

[0028] 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.

[0029] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0030] Combination Figures 1-6A lifting mechanism for a four-way shuttle includes a base 1, a carrying plate 2 on the upper side of the base 1, and a lifting assembly 3 between the base 1 and the carrying plate 2. Two sets of lifting assemblies 3 are symmetrically installed at both ends of the base 1. Each lifting assembly 3 includes a dual-axis motor 31, which is mounted through the base 1. Moving components 32 are mounted on both drive ends of the dual-axis motor 31. Each moving component 32 includes a bidirectional lead screw 321, which is rotatably mounted on the base 1. One end of the bidirectional lead screw 321 is fixedly connected to the drive end of the dual-axis motor 31. Multiple sliding grooves 11 are provided at the upper end of the base 1. Two sliding blocks 322 are threaded through the bidirectional lead screw 321 and slidably connected to the sliding grooves 11. Two connecting plates 323 are mounted on the upper ends of the two sliding blocks 322. A connecting column 324 is installed between the connecting plates 323. A rotating plate 325 is rotatably inserted through the connecting column 324. A rotating column 326 is rotatably inserted through the end of the rotating plate 325 away from the connecting column 324. Fixed blocks 327 are installed at both ends of the rotating column 326. The upper end of the fixed block 327 is fixedly connected to the lower side of the carrying plate 2. When the dual-axis motor 31 is started, the drive end of the dual-axis motor 31 drives the two bidirectional lead screws 321 to rotate, thereby causing the two sliding blocks 322 on the bidirectional lead screws 321 to move closer to each other, thereby causing the rotating plate 325 to rotate. The rotating plate 325 rotates from a horizontal state to an inclined state, thereby causing the fixed block 327 to move upward, thereby causing the carrying plate 2 to move upward, thus lifting the goods. The four sets of moving components 32 on the lower side of the carrying plate 2 simultaneously perform lifting operations, so that the goods rise at a uniform speed and prevent the goods from tipping over.

[0031] Combination Figure 1 , Figures 5-6 The drive ends of the dual-axis motors 31 at both ends of the base 1 rotate in the same direction and at the same speed, ensuring that the four bidirectional lead screws 321 rotate in the same direction and at the same speed, so that the carrying plate 2 can rise at a uniform and stable speed. The two ends of the rotating plate 325 are set in an arc shape to ensure that when the rotating plate 325 rotates, the two ends of the rotating plate 325 will not collide with the inner wall of the sliding groove 11, causing the rotating plate 325 to get stuck and unable to rotate. Multiple friction grooves 21 are provided on the upper side of the carrying plate 2. The friction grooves 21 increase the friction between the goods and the carrying plate 2, preventing the goods from falling off the carrying plate 2.

[0032] Combination Figures 3-5 , Figure 7Two balancing components 33 are provided in the middle of the base 1. Each balancing component 33 includes a gear sleeve 331, which is fixedly sleeved on a bidirectional lead screw 321. Two symmetrical gear sleeves 331 are fitted with meshing toothed belts 332. A rotating shaft 333 is located in the middle of the toothed belts 332 and is rotatably mounted on the base 1. A gear sleeve 334 is fixedly sleeved on the outer side of the rotating shaft 333, and the gear sleeve 334 meshes with the toothed belts 332. A bevel gear 335 is installed at one end of the rotating shaft 333. A support column 336 is provided on one side of the bevel gear 335 and rotatably passes through the base 1. A bevel gear 337 is installed through the support column 336 and meshes with the bevel gear 335. A threaded post 338 is threaded through the middle of the support column 336. The upper end of column 338 is fixedly connected to the lower side of the carrying plate 2. When the drive end of the dual-axis motor 31 drives the bidirectional lead screw 321 to rotate, the gear sleeve 331 rotates together, thereby driving the toothed belt 332 to rotate, causing the gear sleeve 334 to rotate, thereby driving the rotating shaft 333 to rotate, causing the bevel gear 335 to rotate, driving the bevel gear 337 to rotate, and then driving the support column 336 to rotate, causing the threaded column 338 to move upward along the support column 336. The support column 336 supports both ends of the carrying plate 2, sharing part of the weight of the goods and preventing the device from being damaged by excessive load. The distance between the upper end of the support column 336 and the upper side of the base 1 is less than the distance between the connecting plate 323 and the upper side of the base 1. When the rotating plate 325 is not rotating, it is in a horizontal state. At this time, the lower side of the carrying plate 2 is in contact with the upper end of the support column 336.

[0033] Working principle: When the dual-axis motor 31 is started, the drive end of the dual-axis motor 31 drives the two bidirectional lead screws 321 to rotate, thereby causing the two sliding blocks 322 on the bidirectional lead screws 321 to move closer to each other, thereby causing the rotating plate 325 to rotate. The rotating plate 325 rotates from a horizontal state to an inclined state, thereby causing the fixed block 327 to move upward, thus causing the carrying plate 2 to move upward, thereby lifting the goods. The four sets of moving components 32 on the lower side of the carrying plate 2 simultaneously perform lifting operations, so that the goods rise at a uniform speed and prevent the goods from tipping over.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] 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 lifting mechanism for a four-way shuttle, characterized in that: The device includes a base, with a carrying plate on its upper side. A lifting assembly is located between the base and the carrying plate. Two sets of lifting assemblies are symmetrically installed at both ends of the base. Each lifting assembly includes a dual-axis motor, which is mounted through the base. Moving components are mounted on both drive ends of the dual-axis motor. Each moving component includes a bidirectional lead screw, which is rotatably mounted on the base. One end of the bidirectional lead screw is fixedly connected to the drive end of the dual-axis motor. Multiple sliding grooves are formed at the upper end of the base. Two sliding blocks are threaded through the bidirectional lead screw, and the sliding blocks are slidably connected to the sliding grooves. Two connecting plates are mounted on the upper ends of the two sliding blocks. A connecting column one is installed between the two connecting plates. A rotating plate rotatably passes through the connecting column one. A rotating column two rotatably passes through the end of the rotating plate away from the connecting column one. Fixed blocks are mounted at both ends of the rotating column two, and the upper ends of the fixed blocks are fixedly connected to the lower side of the carrying plate.

2. The lifting mechanism of the four-way shuttle according to claim 1, characterized in that: The drive ends of the dual-axis motors at both ends of the base rotate in the same direction and at the same speed.

3. The lifting mechanism of the four-way shuttle according to claim 1, characterized in that: The two ends of the rotating plate are arranged in an arc shape.

4. The lifting mechanism of the four-way shuttle according to claim 1, characterized in that: Two balancing components are provided in the middle of the base. Each balancing component includes a gear sleeve 1, which is fixedly sleeved on a bidirectional lead screw. Two symmetrical gear sleeves 1 are fitted with toothed belts. A rotating shaft is provided in the middle of the toothed belt, which is rotatably mounted on the base. A gear sleeve 2 is fixedly sleeved on the outside of the rotating shaft, and the gear sleeve 2 is meshed with the toothed belt. A bevel gear 1 is installed at one end of the rotating shaft. A support column is provided on one side of the bevel gear 1, which rotatably passes through the base. A bevel gear 2 is installed through the support column, and the bevel gear 2 is meshed with the bevel gear 1. A threaded post is threaded through the middle of the support column, and the upper end of the threaded post is fixedly connected to the lower side of the carrying plate.

5. The lifting mechanism of the four-way shuttle according to claim 4, characterized in that: The distance between the upper end of the support column and the upper side of the base is less than the distance between the connecting plate and the upper side of the base.

6. The lifting mechanism of the four-way shuttle according to claim 1, characterized in that: The upper side of the carrier plate is provided with multiple friction grooves.

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