A four-way shuttle vehicle jacking mechanism

Abstract

This utility model discloses a lifting mechanism for a four-way shuttle vehicle, belonging to the technical field of four-way shuttle vehicles. The lifting mechanism adopts a side-mounted layout, including a reversing motor, a reversing gearbox, and a reversing transmission assembly connected to it. Through a combination of shaft transmission, gear transmission, and eccentric wheel transmission, it drives the lifting frames on both sides of the vehicle body to rise and fall synchronously, thereby realizing the lifting and reversing actions of the X-direction traveling wheels. The reversing motor drives the first reversing bevel gear to rotate the main shaft, transmitting power through the reversing transmission gearbox and eccentric wheel structure. The lifting frames are slidably mounted on the vehicle body via guide rails and are equipped with guide columns and guide seats to improve operational stability. This lifting mechanism avoids the space occupied by the traditional centrally located drive shaft, effectively freeing up battery installation area and improving range. It also has advantages such as compact structure, high transmission efficiency, stable operation, and easy maintenance, making it suitable for various working conditions and possessing good versatility and application prospects.

Description

Technical Field

[0001] This utility model relates to the field of four-way shuttle technology, and in particular to a four-way shuttle lifting mechanism. Background Technology

[0002] Huzhou Yinfeng Robotics Co., Ltd. disclosed a four-way shuttle structure in its utility model patent application filed in 2021, titled "A Four-Way Tray Shuttle" (patent number: 202122027360.9). The shuttle's lifting synchronous drive shaft adopts a centrally located layout, meaning it passes directly through the battery and connects to the reduction gearboxes on the left and right sides to achieve synchronous transmission for lifting movements. However, this centrally located drive shaft layout has a drawback: because the lifting synchronous drive shaft passes through the battery area, it restricts the battery installation space, resulting in limited battery capacity and affecting the device's battery life. Utility Model Content

[0003] To address the aforementioned issues, this invention provides a four-way shuttle lifting mechanism for four-way shuttle manufacturers to choose from. This mechanism expands the battery installation space, enabling the four-way shuttle to use batteries with larger capacity.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A four-way shuttle lifting mechanism is installed inside the body of the four-way shuttle and is side-mounted. The lifting reversing mechanism includes a reversing motor and a reversing gearbox that is driven by the reversing motor. The reversing gearbox is driven by a reversing transmission assembly equipped with an eccentric wheel. The reversing transmission assembly adopts a combination of shaft transmission structure, gear transmission structure and eccentric wheel transmission structure to drive the lifting frames located on the left and right sides of the vehicle body to rise and fall relative to the vehicle body, so that the X-direction traveling wheels installed on the lifting frames rise and fall relative to the vehicle body.

[0006] Furthermore, the output shaft of the commutation motor extends into the commutation gearbox and is equipped with a first commutation bevel gear; the commutation main shaft passes through the commutation gearbox and is rotatably connected to the commutation gearbox via bearings; a second commutation bevel gear that meshes with the first commutation bevel gear is installed on the shaft section of the commutation main shaft inside the commutation gearbox; both ends of the commutation main shaft are connected to the lifting frame via a set of commutation transmission gearboxes and an eccentric wheel transmission structure fixedly installed inside the vehicle body.

[0007] Furthermore, five meshing spur gears are symmetrically arranged inside the reversing gearbox; the outermost spur gear of any one of the five spur gears is fixedly connected to the end of the reversing main shaft, and a through hole for the reversing main shaft to enter is provided on one side of the reversing gearbox.

[0008] Furthermore, the two reversing spur gears in the middle position of the five reversing drive spur gears are arranged so that their rotation directions are opposite.

[0009] Furthermore, the eccentric wheel transmission structure includes an eccentric wheel and an eccentric wheel mating plate; the eccentric wheel is installed on the side of the two eccentric transmission spur gears located in the middle position among the five eccentric transmission spur gears, the eccentric wheel is exposed outside the eccentric transmission gearbox, and the other side of the eccentric transmission gearbox is provided with a circular hole for mating with the eccentric wheel shaft; a set of eccentric wheel mating plates is fixedly installed on the side of the lifting frame near the vehicle body, and an oblong hole is opened on the eccentric wheel mating plate, the wheel body of the eccentric wheel is located in the oblong hole.

[0010] Furthermore, four first guide rails are fixedly installed on the front and rear sides of the vehicle body; second guide rails are provided at both ends of the inner side of the lifting frame, and the lifting frame is slidably installed on the front and rear sides of the vehicle body through the cooperation of the first guide rails and the second guide rails, and a gap is left between the lifting frame and the vehicle body to cooperate with the eccentric wheel transmission structure.

[0011] Furthermore, the lifting frames on the left and right sides of the vehicle body are fixedly connected to each other by support plates on the left and right sides of the vehicle body. The bottom of the support plate is provided with a guide column, and a guide seat that cooperates with the guide column is installed on the vehicle body; an anti-slip plate is installed on the upper surface of the support plate.

[0012] Furthermore, the four-way shuttle vehicle has four X-axis traveling wheels on its front and rear sides, with two X-axis traveling wheels on one side forming a group; each group of X-axis traveling wheels includes one X-axis active traveling wheel and one X-axis passive traveling wheel, and both the active and passive X-axis traveling wheels are equipped with inter-wheel transmission sprockets and are connected by inter-wheel transmission chains.

[0013] Furthermore, the lifting frame has several pairs of tensioning sprockets fixedly installed on the side near the vehicle body to tension the inter-wheel transmission chains.

[0014] The beneficial effects of this utility model are:

[0015] The four-way shuttle lifting mechanism provided by this utility model has the following significant advantages compared with the prior art:

[0016] 1. Optimize spatial layout and increase battery capacity: The lifting mechanism adopts a side-mounted structure design, which avoids the problem of the traditional center-mounted drive shaft passing through the battery area, thereby effectively freeing up battery installation space. This allows the four-way shuttle to be equipped with a larger capacity battery, significantly improving the equipment's endurance and extending continuous operation time.

[0017] 2. Achieve efficient and stable lifting and reversing functions: The reversing motor drives the bevel gear transmission system, which drives the main shaft to rotate. The power is then transmitted to the lifting frames on both sides through the reversing transmission gearbox and eccentric wheel structure, realizing synchronous lifting and lowering control of the X-axis traveling wheels, ensuring smooth, precise and rapid reversing action.

[0018] 3. Compact structure and high transmission efficiency: The reversing gearbox and the reversing transmission gearbox adopt multi-stage gear meshing transmission, combined with an eccentric wheel structure, making the overall transmission path more reasonable, the structural layout more compact, reducing energy loss and improving transmission efficiency.

[0019] 4. Enhanced lifting stability: The lifting frame is connected to the first and second guide rails through sliding cooperation, and is equipped with guide columns and guide seats to ensure stable operation during lifting, prevent shaking and deviation, and improve the safety and reliability of equipment operation.

[0020] 5. Adaptable to complex working conditions and highly expandable: This lifting mechanism is not only suitable for standard pallet handling scenarios, but can also be flexibly adapted to different sized shelves and various terrain environments. It has good versatility and expandability, and is suitable for widespread application in various automated warehousing systems.

[0021] In summary, the four-way shuttle lifting mechanism provided by this utility model solves the problem of limited battery capacity in traditional structures without sacrificing performance, thereby improving the overall performance and practicality of the four-way shuttle and demonstrating good application prospects and promotional value. Attached Figure Description

[0022] Figure 1 This is a schematic diagram showing the installation of the four-way shuttle lifting mechanism of this utility model inside the four-way shuttle.

[0023] Figure 2 , Figure 3 This is a schematic diagram of the transmission structure between the commutating motor, commutating gearbox, and commutating transmission assembly of this utility model.

[0024] Figure 4 This utility model Figure 3 Cross-sectional view at point CC;

[0025] Figure 5 This utility model Figure 3 Cross-sectional view at point AA;

[0026] Figure 6 This is a schematic diagram showing the installation position of the guide structure of the support plate of this utility model;

[0027] In the diagram, 1—vehicle body, 2—reversing motor, 3—reversing gearbox, 4—reversing transmission assembly, 5—X-direction traveling wheel, 6—first reversing bevel gear, 7—reversing main shaft, 8—second reversing bevel gear, 9—reversing transmission gearbox, 10—lifting frame, 11—first reversing transmission spur gear, 12—second reversing transmission spur gear, 13—third reversing transmission spur gear, 14—fourth reversing transmission spur gear, 15—fifth reversing transmission spur gear, 16—eccentric wheel, 17—eccentric wheel mating plate, 18—round hole, 19—slender hole, 20—first guide rail, 21—second guide rail, 22—support plate, 23—guide column, 24—guide seat, 25—X-direction driving traveling wheel, 26—X-direction driven traveling wheel, 27—inter-wheel transmission sprocket, 28—tensioning sprocket, 29—Y-direction traveling wheel, 30—battery installation area. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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] This utility model provides a four-way shuttle lifting mechanism, which is installed inside the body 1 of the four-way shuttle and adopts a side-mounted structure design to avoid the space limitation problem caused by the traditional central drive shaft passing through the battery area.

[0030] like Figure 1 As shown, the lifting mechanism of the four-way shuttle mainly includes: a reversing motor 2, a reversing gearbox 3, a reversing transmission assembly 4, and a lifting frame 10. The reversing motor 2 is connected to the reversing gearbox 3, which is connected to the reversing transmission mechanism equipped with an eccentric wheel. The reversing transmission mechanism uses a combination of shaft transmission, gear transmission, and eccentric wheel transmission to drive the lifting frames 10 located on the left and right sides of the four-way shuttle body 1 to rise and fall relative to the body 1. The X-axis traveling wheels 5 are installed on the lifting frames 10, thereby realizing the rising and falling of the X-axis traveling wheels 5 and satisfying the reversing travel of the four-way shuttle with the eccentric wheel mechanism.

[0031] Specifically, such as Figure 1 , Figure 2 and Figure 3As shown, the reversing motor 2 and the reversing gearbox 3 are fixedly installed inside the four-way shuttle vehicle body 1. The output shaft of the reversing motor 2 extends into the reversing gearbox 3 and is fitted with a first reversing bevel gear 6. The reversing transmission mechanism includes a reversing main shaft 7 and a reversing gearbox 3. The reversing main shaft 7 passes through the reversing gearbox 3 and is rotatably connected to the reversing gearbox 3 via bearings. A second reversing bevel gear 8, which meshes with the first reversing bevel gear 6, is installed on the shaft section of the reversing main shaft 7 within the reversing gearbox 3. When the reversing motor 2 rotates, the output shaft of the reversing motor 2 drives the first reversing bevel gear 6 to rotate in the forward or reverse direction. Since the first reversing bevel gear 6 meshes with the second reversing bevel gear 8, the reversing motor 2 can drive the reversing main shaft 7 to rotate in the forward or reverse direction.

[0032] Furthermore, such as Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, both ends of the reversing main shaft 7 extend into a set of reversing transmission gearboxes 9 fixedly installed inside the vehicle body 1. One side of the reversing transmission gearbox 9 has a through hole for the reversing main shaft 7 to enter. Symmetrically arranged inside the reversing transmission gearbox 9 are a first reversing transmission spur gear 11, a second reversing transmission spur gear 12, a third reversing transmission spur gear 13, a fourth reversing transmission spur gear 14, and a fifth reversing transmission spur gear 15, which mesh with each other. All of these gears are rotatably mounted inside the reversing transmission gearbox 9 via shafts. Furthermore, the second reversing transmission spur gear 12 and the fourth reversing transmission spur gear 14 rotate in opposite directions. The fifth reversing transmission spur gear 15, located on the far right, is fixedly connected to the end of the reversing main shaft 7.

[0033] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the eccentric wheel transmission structure in this embodiment includes an eccentric wheel 16 and an eccentric wheel mating plate 17. Figure 4As shown, eccentric wheels 16 are rotatably mounted on the sides of the second reversing drive spur gear 12 and the fourth reversing drive spur gear 14. The eccentric wheels 16 are exposed outside the reversing drive gearbox 9. A circular hole 18 for the axle of the eccentric wheel 16 is provided on the other side of the reversing drive gearbox 9. When the reversing motor 2 drives the reversing main shaft 7 to rotate in the forward or reverse direction, the reversing main shaft 7 drives each reversing drive spur gear in the reversing drive gearbox 9 to rotate. The second reversing drive spur gear 12 and the fourth reversing drive spur gear 14 rotate inward or outward at the same time. Therefore, the second reversing drive spur gear 12 and the fourth reversing drive spur gear 14 drive the eccentric wheel 16 to rotate relative to the shaft of the drive spur gear, thereby driving the lifting frame 10 to rise and fall smoothly on both sides of the vehicle body 1, realizing the lifting action of the X-direction traveling wheel 5. When the X-axis traveling wheel 5 rises and disengages from the track, the four-way shuttle can travel along the Y direction via the Y-axis traveling wheels 29 on the front and rear sides of the vehicle body 1; conversely, when the X-axis traveling wheel 5 descends and engages with the track, the four-way shuttle can travel along the X direction via the X-axis traveling wheels 5 on the left and right sides of the vehicle body 1, thus completing the switch between the X and Y directions.

[0034] Regarding the installation of the lifting frame 10, such as Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, four first guide rails 20 are fixedly installed on the front and rear sides of the vehicle body 1; second guide rails 21 are provided at both ends of the inner side of the lifting frame 10, and the lifting frame 10 is slidably installed on the front and rear sides of the vehicle body 1 through the cooperation of the first guide rails 20 and the second guide rails 21. Figure 6 As shown, the lifting frames 10 on the left and right sides of the vehicle body 1 are fixedly connected by support plates 22 on both sides of the vehicle body 1. The bottom of the support plate 22 is provided with guide posts 23, and guide seats 24 that cooperate with the guide posts 23 are installed on the vehicle body 1 to ensure that the lifting process of the support plate 22 is stable and reliable. The upper surface of the support plate 22 is provided with an anti-slip plate to enhance the stability of palletized goods.

[0035] like Figure 1 Figure 2 and Figure 3 As shown, a gap is left between the lifting frame 10 and the vehicle body 1, and a set of eccentric wheel mating plates 17 are fixedly installed on the side of the lifting frame 10 near the vehicle body 1; as Figure 5 As shown, an oblong hole 19 is provided on the eccentric wheel mating plate 17, and the wheel body of the eccentric wheel 16 is located in the oblong hole 19. When the eccentric wheel 16 rotates eccentrically through the second reversing drive spur gear 12 and the fourth reversing drive spur gear 14, the lifting frame 10 is laterally limited by the first guide rail 20 and the second guide rail 21, and then the eccentric wheel 16 drives the lifting frame 10 to rise and fall relative to the vehicle body 1 through the eccentric wheel mating plate 17.

[0036] In summary, the four-way shuttle vehicle's lifting mechanism is positioned on one side of the vehicle body 1, avoiding the problem of the traditional centrally located driveshaft penetrating the battery area. Figure 2 As shown, this design allows for a larger battery mounting area 30 within the vehicle body 1, enabling the installation of larger capacity batteries and significantly improving the equipment's range. Furthermore, this four-way shuttle lifting mechanism offers advantages such as a clear transmission path, stable operation, rapid response, and ease of maintenance, making it suitable for various logistics and warehousing automation scenarios.

[0037] Furthermore, as a preferred technical solution in this embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, the four-way shuttle equipped with the above-mentioned lifting and reversing mechanism can have four X-direction traveling wheels 5 on the front and rear sides of its body 1. The two X-direction traveling wheels 5 on one side form a group. Each group of X-direction traveling wheels 5 includes an X-direction active traveling wheel 25 and an X-direction driven traveling wheel 26. The X-direction active traveling wheel 25 is connected to the drive system inside the vehicle. Since there is a gap between the lifting frame 10 and the body 1, a wheel-to-wheel transmission sprocket 27 can be installed on the axle of both the X-direction active traveling wheel 25 and the X-direction driven traveling wheel 26, and the transmission connection between the X-direction active traveling wheel 25 and the X-direction driven traveling wheel 26 is achieved through the wheel-to-wheel transmission chain.

[0038] In addition, to ensure the transmission stability between the X-direction active traveling wheel 25 and the X-direction driven traveling wheel 26, several tension sprockets 28 can be fixedly installed on the side of the lifting frame 10 near the vehicle body 1.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A four-way shuttle lifting mechanism, characterized in that: The lifting mechanism is installed inside the body of the four-way shuttle and is side-mounted. The lifting and reversing mechanism includes a reversing motor and a reversing gearbox that is connected to the reversing motor. The reversing gearbox is connected to a reversing transmission assembly with an eccentric wheel. The reversing transmission assembly uses a combination of shaft transmission, gear transmission, and eccentric wheel transmission to drive the lifting frames located on the left and right sides of the vehicle body to rise and fall relative to the vehicle body, so that the X-direction traveling wheels installed on the lifting frames rise and fall relative to the vehicle body.

2. The four-way shuttle lifting mechanism according to claim 1, characterized in that: The output shaft of the commutation motor extends into the commutation gearbox and is equipped with a first commutation bevel gear. The commutation main shaft passes through the commutation gearbox and is rotatably connected to the commutation gearbox via bearings. A second commutation bevel gear that meshes with the first commutation bevel gear is installed on the shaft section of the commutation main shaft inside the commutation gearbox. Both ends of the commutation main shaft are connected to the lifting frame via a set of commutation transmission gearboxes and an eccentric wheel transmission structure fixedly installed inside the vehicle body.

3. The four-way shuttle lifting mechanism according to claim 2, characterized in that: The reversing gearbox contains five meshing reversing spur gears symmetrically arranged inside; the outermost of any one of the five reversing spur gears is fixedly connected to the end of the reversing main shaft, and a through hole is provided on one side of the reversing gearbox to allow the reversing main shaft to enter.

4. The four-way shuttle lifting mechanism according to claim 3, characterized in that: The two reversing spur gears in the middle position of the five reversing drive spur gears are arranged so that their rotation directions are opposite.

5. The four-way shuttle lifting mechanism according to claim 3, characterized in that: The eccentric wheel transmission structure includes an eccentric wheel and an eccentric wheel mating plate; the eccentric wheel is installed on the side of the two eccentric spur gears located in the middle position among the five eccentric transmission spur gears, and the eccentric wheel is exposed outside the eccentric transmission gearbox. The other side of the eccentric transmission gearbox is provided with a round hole for mating with the eccentric wheel shaft; a set of eccentric wheel mating plates is fixedly installed on the side of the lifting frame near the vehicle body, and an oblong hole is opened on the eccentric wheel mating plate, with the wheel body of the eccentric wheel located in the oblong hole.

6. The four-way shuttle lifting mechanism according to claim 1, characterized in that: Four first guide rails are fixedly installed on the front and rear sides of the vehicle body; second guide rails are provided at both ends of the inner side of the lifting frame. The lifting frame is slidably installed on the front and rear sides of the vehicle body through the cooperation of the first and second guide rails, and a gap is left between the lifting frame and the vehicle body to cooperate with the eccentric wheel transmission structure.

7. The four-way shuttle lifting mechanism according to claim 1, characterized in that: The lifting frames on the left and right sides of the vehicle body are fixedly connected by support plates on the left and right sides of the vehicle body. The bottom of the support plate is provided with a guide column, and the vehicle body is equipped with a guide seat that cooperates with the guide column; the upper surface of the support plate is equipped with an anti-slip plate.

8. The four-way shuttle lifting mechanism according to claim 1, characterized in that: The four-way shuttle has four X-axis traveling wheels on its front and rear sides. The two X-axis traveling wheels on one side form a group. Each group of X-axis traveling wheels includes one X-axis active traveling wheel and one X-axis passive traveling wheel. Both the active and passive X-axis traveling wheels are equipped with inter-wheel drive sprockets and are connected by inter-wheel drive chains.

9. The four-way shuttle lifting mechanism according to claim 8, characterized in that: The lifting frame has several pairs of tensioning sprockets fixedly installed on the side near the vehicle body to tension the inter-wheel drive chain.

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