Fork synchronous jacking transmission device for four-way shuttle vehicle

Abstract

The utility model relates to a fork synchronous jacking transmission device for a four-way shuttle vehicle, which comprises a driving motor, the driving motor is connected with a driving gear box, and the driving gear box is connected with a driven gear box through a transmission shaft; the transmission shaft comprises a first synchronous transmission shaft and a second synchronous transmission shaft, the first synchronous transmission shaft is connected with the driving gearbox, the second synchronous transmission shaft is connected with the driven gearbox, and the first synchronous transmission shaft and the second synchronous transmission shaft are connected through a coupler; the driving gear box and the driven gear box are both of a split type structure and comprise gear box bottom plates and two parallel gear box vertical plates connected with the gear box bottom plates, and the two gear box vertical plates are fixedly connected through a connecting rod. The four-way shuttle vehicle has the remarkable technical effects of being high in transmission efficiency, good in stability, convenient and fast to maintain, high in energy efficiency of the whole vehicle and the like, and powerful guarantee is provided for efficient and stable operation of the four-way shuttle vehicle.

Description

Technical Field

[0001] This utility model belongs to the field of four-way shuttle vehicle technology, and particularly relates to a synchronous lifting transmission device for forks of a four-way shuttle vehicle. Background Technology

[0002] In the rapid development of the modern logistics and warehousing industry, four-way shuttles, with their high efficiency and flexibility, have gradually become a core force in automated material handling equipment. These vehicles can achieve precise storage and retrieval and rapid handling of goods in complex warehouse environments, significantly improving the efficiency and accuracy of warehousing operations. The advantages of four-way shuttles are particularly prominent under the demands of high-density storage and rapid response warehousing. One of the core functions of a four-way shuttle lies in its fork synchronous lifting system, which ensures the smooth and synchronous movement of the forks during vehicle reversing and cargo lifting. Traditional four-way shuttle fork synchronous lifting transmission devices are typically designed with a drive motor driving two lifting plates via a drive shaft to achieve cargo lifting or vehicle reversing. In this design, the gearbox, as a key component of power transmission, not only transmits power from the drive motor to the lifting plates but also ensures the precise synchronous lifting of the wheels on both lifting plates to maintain the vehicle's linear stability and reversing flexibility during travel.

[0003] However, while the fully enclosed gearbox structure widely used in the current market effectively prevents external impurities from entering and extends service life due to its excellent sealing performance, it also brings a series of maintenance challenges. The complex internal structure of an integral gearbox makes it difficult to quickly repair on-site once a fault or damage occurs. Maintenance personnel typically need to disassemble the entire gearbox and return it to the factory for repair or replacement, which not only increases maintenance time and costs but also severely impacts the efficiency of warehousing operations. More seriously, these integral gearboxes are usually sold as a complete system, with the left and right gearboxes matching each other and inseparable. Therefore, in actual use, even if only one gearbox malfunctions, the entire system often needs to be replaced. This "one-size-fits-all" replacement method not only wastes resources but also significantly increases the company's operating costs. Especially in large warehousing systems with numerous four-way shuttles, frequent gearbox replacements not only severely disrupt warehousing operations but also negatively impact the company's economic benefits. In summary, existing four-way shuttle fork synchronous lifting transmission devices have significant shortcomings in terms of maintenance costs, repair efficiency, and resource utilization. Therefore, there is an urgent need for a new type of synchronous lifting transmission device for four-way shuttle forks to solve the above problems, improve the efficiency of warehousing operations, and reduce the operating costs of enterprises. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a synchronous lifting transmission device for forks of a four-way shuttle vehicle.

[0005] This utility model is implemented as follows: a synchronous lifting transmission device for forks of a four-way shuttle vehicle includes a drive motor, the drive motor is connected to a drive gearbox, the drive gearbox is connected to a driven gearbox through a transmission shaft; the transmission shaft includes a first synchronous transmission shaft and a second synchronous transmission shaft, wherein the first synchronous transmission shaft is connected to the drive gearbox, the second synchronous transmission shaft is connected to the driven gearbox, and the first synchronous transmission shaft and the second synchronous transmission shaft are connected by a coupling.

[0006] The characteristic feature is that both the driving gearbox and the driven gearbox adopt a split structure, including a gearbox base plate and two parallel gearbox upright plates connected to the gearbox base plate, and the two gearbox upright plates are fixedly connected by a connecting rod;

[0007] The drive gearbox is equipped with a drive gear system, which includes at least a first main gear connected to the output shaft of the drive motor. The first main gear meshes with a first synchronous gear, and the first main gear meshes with a main output gear through at least one intermediate gear. The main output gear is connected to a first lifting drive shaft via a key. The first synchronous gear is connected to a first synchronous transmission shaft via a key, and the first synchronous transmission shaft extends through the first synchronous gear and out of the gearbox upright plate as a second lifting drive shaft.

[0008] The driven gearbox is equipped with a driven gear system, which includes a second synchronous gear connected to a second synchronous transmission shaft. The second synchronous transmission shaft extends through the second synchronous gear and out of the gearbox vertical plate as a third lifting drive shaft. The second synchronous gear meshes with a driven output gear through at least one intermediate gear. The driven output gear is connected to a fourth lifting drive shaft through a key.

[0009] More preferably, the gearbox base plate and gearbox upright plate adopt a mortise and tenon structure, and are fastened together at the mortise and tenon joints by connecting bolts.

[0010] More preferably, the connecting rod includes a positioning rod portion for limiting the distance between the two gearbox uprights. The positioning rod portion has positioning shaft heads at both ends to ensure that the two gearbox uprights are at the same height. The positioning shaft heads at both ends are inserted into positioning holes on the inner side of the gearbox uprights. A countersunk hole is provided on the outer side of the gearbox uprights, and a fastening bolt connected to the positioning shaft head is provided in the countersunk hole.

[0011] More preferably, the gearbox base plate is provided with an external connecting part, which is fixedly connected to the bottom of the frame by fasteners.

[0012] More preferably, protective plates are installed on the upper part and / or both ends of the two gearbox uprights, and the protective plates, gearbox uprights and gearbox bottom plates enclose a gear chamber for installing the gear system, and the gear chamber is filled with lubricating grease.

[0013] More preferably, the enclosure panel is made of metal plate or non-metallic transparent plate.

[0014] A further preferred embodiment is provided with a positioning pin between the gearbox base plate and the connecting gearbox base plate.

[0015] The advantages and technical effects of this utility model are as follows: The four-way shuttle fork synchronous lifting transmission device of this utility model achieves significant technical effects through a series of carefully designed technical features, and exhibits many advantages compared with traditional enclosed gearboxes. First, the transmission device adopts a split-type drive gearbox and driven gearbox structure, which greatly improves the convenience of maintenance. When a fault occurs inside the gearbox, maintenance personnel do not need to disassemble the entire transmission device; they only need to open the faulty part for repair and inspection, which greatly reduces the difficulty and time cost of maintenance. At the same time, the tenon and mortise structure between the gearbox base plate and the upright plate, as well as the fastening effect of the connecting bolts, ensure the reliability and durability of the gearbox during long-term use, improving the performance and service life of the entire transmission device.

[0016] Furthermore, this invention features protective plates installed on the upper part and / or both ends of the gearbox upright plate, which, together with the gearbox upright plate and the base plate, form a relatively enclosed and well-lubricated gear chamber. This design not only reduces the stringent requirements for sealing performance, minimizing the risk of oil leakage and malfunctions due to seal failure, but also achieves long-term lubrication of the gear system by filling it with lubricating grease, thereby improving transmission efficiency and gear life. Simultaneously, the thickness of the protective plates is designed to be less than that of the gearbox upright plate, effectively reducing the overall weight of the vehicle and enhancing the range of the four-way shuttle.

[0017] Compared to traditional enclosed gearboxes, the transmission device described in this invention exhibits significant advantages in several aspects. Firstly, in terms of ease of maintenance, the split gearbox structure makes repairs simpler and faster. Secondly, traditional enclosed gearboxes may experience decreased transmission efficiency and increased failure rates due to sealing issues or poor lubrication, while this invention allows for grease lubrication. Finally, regarding weight and range, this invention effectively reduces the overall vehicle weight and improves range by reducing the thickness of the protective panels; whereas traditional enclosed gearboxes may increase vehicle energy consumption due to their heavier structure.

[0018] In summary, the four-way shuttle fork synchronous lifting transmission device described in this utility model achieves significant technical effects through a series of innovative design features, surpassing traditional enclosed gearboxes in several aspects. This transmission device not only improves transmission efficiency, stability, and synchronization, but also reduces maintenance difficulty and cost, providing a strong guarantee for the efficient and stable operation of the four-way shuttle. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the installation structure of the synchronous lifting transmission device for forks;

[0020] Figure 2 This is a schematic diagram of the fork synchronous lifting transmission device;

[0021] Figure 3 yes Figure 2 Sectional view of AA;

[0022] Figure 4 This is a schematic diagram of the connecting rod structure;

[0023] Figure 5 This is a three-dimensional structural diagram of the fork synchronous lifting transmission device;

[0024] Figure 6 and Figure 7 This is a schematic diagram of the structure without the gearbox vertical plate;

[0025] Figure 8 This is a schematic diagram of a structure with enclosure panels.

[0026] 1. Drive motor; 2. Drive gearbox; 2-1. Gearbox base plate; 2-10. External connecting part; 2-2. Gearbox upright plate; 2-20. Positioning hole; 2-21. Countersunk hole; 2-22. Fastening bolt; 2-3. Connecting rod; 2-30. Positioning rod part; 2-31. Positioning shaft head; 2-4. Drive gear system; 2-41. First main gear; 2-42. First synchronous gear; 2-43. Intermediate gear; 2-44. Main output gear; -45. First lifting drive shaft; 2-46. Second lifting drive shaft; 3. Driven gearbox; 3-1. Driven gear train; 3-2. Second synchronous gear; 3-3. Third lifting drive shaft; 3-4. Driven output gear; 3-5. Fourth lifting drive shaft; 3-6. Intermediate gear; 4-1. First synchronous transmission shaft; 4-2. Second synchronous transmission shaft; 4-3. Coupling; 5. Enclosure plate; 5-1. Oil inlet; 6. Positioning pin; 7. Drive shaft. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0028] Please see Figures 1 to 7 A synchronous lifting transmission device for forks in a four-way shuttle is disclosed. This device is installed within the shuttle's frame and includes a drive motor 1 connected to a drive gearbox 2. The drive gearbox is connected to a driven gearbox 3 via a drive shaft. The drive shaft includes a first synchronous drive shaft 4-1 and a second synchronous drive shaft 4-2. The first synchronous drive shaft connects to the drive gearbox, and the second synchronous drive shaft connects to the driven gearbox. The first and second synchronous drive shafts are connected by a coupling 4-3. The drive shafts transmit power from the drive gearbox to the driven gearbox, achieving synchronous lifting of the forks on both sides. This design ensures the stability and synchronization of the forks during lifting, improving the operational precision of the four-way shuttle.

[0029] Both the driving and driven gearboxes adopt a split structure, which makes gearbox maintenance more convenient. When a fault occurs inside the gearbox, it is not necessary to disassemble the entire gearbox; only the corresponding part needs to be opened for repair, greatly reducing maintenance difficulty and time costs. The gearbox includes a base plate 2-1 and two parallel gearbox uprights 2-2 connected to the base plate. The two uprights are fixedly connected by a connecting rod 2-3. This structural design enhances the rigidity and stability of the gearbox, ensuring the accuracy and durability of the gears during meshing. Simultaneously, the parallel gearbox uprights also facilitate gear installation and adjustment.

[0030] The drive gearbox houses a drive gear train 2-4, which includes at least a first main gear 2-41 connected to the output shaft of the drive motor. This first main gear meshes with a first synchronous gear 2-42. Simultaneously, the first main gear meshes with a main output gear 2-44 via at least one intermediate gear 2-43. The main output gear is connected to a first lifting drive shaft 2-45 via a key. The first synchronous gear is connected to a first synchronous transmission shaft 4-1 via a key. This first synchronous transmission shaft extends through the first synchronous gear and out of the gearbox mounting plate, serving as a second lifting drive shaft 2-46. This gear train design enables multi-stage power transmission and distribution, allowing the drive motor's power to be transmitted more precisely to the required locations. Furthermore, the meshing of the intermediate gears allows for different transmission ratios to meet various operational needs.

[0031] The driven gearbox is equipped with a driven gear system 3-1, which includes a second synchronous gear 3-2 connected to a second synchronous transmission shaft. The second synchronous transmission shaft extends through the second synchronous gear and out of the gearbox vertical plate as a third lifting drive shaft 3-3. The second synchronous gear meshes with a driven output gear 3-4 through at least one intermediate gear 3-6. The driven output gear is connected to a fourth lifting drive shaft 3-5 by a key.

[0032] The first to fourth lifting drive shafts mentioned above are all equipped with eccentric wheels that drive the lifting plate to rise or fall.

[0033] In summary, the technical features of this four-way shuttle fork synchronous lifting transmission device are reasonable and ingeniously designed. It not only improves transmission efficiency, stability and synchronization, but also reduces maintenance difficulty and cost, providing a strong guarantee for the efficient and stable operation of the four-way shuttle.

[0034] Preferably, the gearbox base plate and gearbox upright plate adopt a mortise and tenon structure, and are fastened together at the mortise and tenon joints by connecting bolts. The mortise and tenon structure itself has good self-locking and shock resistance, which can effectively prevent the gearbox from loosening or deforming under vibration or stress. At the same time, the fastening effect of the connecting bolts further strengthens the connection, ensuring the reliability and durability of the gearbox during long-term use, thereby improving the performance and service life of the entire transmission device.

[0035] More preferably, the connecting rod 2-3 includes a positioning rod portion 2-30 for limiting the distance between the two gearbox uprights. Positioning shaft heads 2-31 are provided at both ends of the positioning rod portion to ensure that the two gearbox uprights are at the same height. The positioning shaft heads at both ends are inserted into positioning holes 2-20 on the inner side of the gearbox uprights. Countersunk holes 2-21 are provided on the outer side of the gearbox uprights, and fastening bolts 2-22 connected to the positioning shaft heads are provided in the countersunk holes. This effectively limits the distance between the two gearbox uprights, ensuring the stability and accuracy of the gearbox structure. The positioning shaft heads at both ends of the positioning rod portion not only provide precise positioning but also ensure the height consistency of the two gearbox uprights, thereby improving the gear meshing accuracy and transmission efficiency. Simultaneously, the positioning shaft heads are inserted into the positioning holes on the inner side of the gearbox uprights and connected by fastening bolts in the countersunk holes on the outer side. This connection method is both robust and easy to disassemble and assemble, facilitating gearbox maintenance and replacement, and further improving the reliability and ease of maintenance of the entire transmission device.

[0036] Preferably, the gearbox base plate 2-1 is provided with an external connecting part 2-10, which is fixedly connected to the bottom of the frame by fasteners. This significantly enhances the connection strength and stability between the gearbox and the frame. This connection method not only simplifies the installation process and improves assembly efficiency, but also effectively prevents the gearbox from loosening or shifting due to vibration or external forces during vehicle operation, thereby ensuring the normal operation of the transmission device and driving safety, and improving the reliability and durability of the entire four-way shuttle.

[0037] For further recommendations, please refer to [link / reference]. Figure 8 Two gearbox uprights are fitted with protective plates 5 at their upper parts and / or both ends. These protective plates, the gearbox uprights, and the gearbox base plate enclose a gear chamber for mounting the gear train, which is filled with lubricating grease. This provides a relatively enclosed and well-lubricated working environment for the gear train. Compared to traditional enclosed gearboxes that use liquid lubricating oil and require high sealing performance, this design not only reduces the stringent requirements for sealing, decreasing the risk of oil leakage and malfunctions due to seal failure, but also achieves long-term lubrication of the gear train by filling with lubricating grease, improving transmission efficiency and gear life, while also facilitating maintenance and upkeep.

[0038] In the actual manufacturing process, the thickness of the enclosure plate was designed to be less than that of the gearbox upright plate. This ingenious design not only ensured the structural strength of the gear chamber but also effectively reduced the overall weight of the vehicle. Weight reduction is crucial for improving the range of the four-way shuttle, as it reduces energy consumption during operation and extends working time and driving distance after a single charge. Therefore, this design not only optimizes the performance of the transmission system but also contributes to improving the overall energy efficiency and range of the vehicle.

[0039] Preferably, the enclosure plate is provided with an oil inlet 5-1. This facilitates the injection or replenishment of lubricating grease into the gear chamber, simplifying maintenance and improving maintenance efficiency.

[0040] Preferably, the enclosure panel is made of transparent material. This facilitates observation of the gear system's operating status and lubrication, allowing for timely detection and handling of potential problems, thus improving the convenience and efficiency of maintenance.

[0041] Preferably, a locating pin 6 is provided between the gearbox base plate and the connecting gearbox base plate. As a positioning element, the locating pin ensures precise alignment and fixation between the two gearbox base plates and the gearbox upright plate. This helps maintain the relative positions of the internal components of the gearbox, preventing displacement due to vibration or external forces, thereby ensuring the accuracy and stability of the transmission device. Simultaneously, the use of the locating pin simplifies the assembly process, improves production efficiency, and ensures the high precision and reliability of the four-way shuttle fork synchronous lifting transmission device during long-term use.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fork synchronization lifting transmission device for a four-way shuttle vehicle, comprising a driving motor, the driving motor being connected to a driving gear box, the driving gear box being connected to a driven gear box through a transmission shaft; the transmission shaft comprising a first synchronization transmission shaft and a second synchronization transmission shaft, wherein the first synchronization transmission shaft is connected to the driving gear box, the second synchronization transmission shaft is connected to the driven gear box, and the first synchronization transmission shaft and the second synchronization transmission shaft are connected through a shaft coupling; characterized in that both the driving gear box and the driven gear box adopt a split structure, comprising a gear box bottom plate and two parallel gear box vertical plates connected to the gear box bottom plate, and the two gear box vertical plates are fixedly connected through a connecting rod; a driving gear train is installed in the driving gear box, the driving gear train at least comprises a first driving gear connected to a motor output shaft of the driving motor, the first driving gear is engaged with a first synchronization gear, and the first driving gear is engaged with a main output gear through at least one intermediate gear, the main output gear is connected to a first lifting driving shaft through a key; the first synchronization gear is connected to the first synchronization transmission shaft through a key, and the first synchronization transmission shaft extends out of the gear box vertical plate through the first synchronization gear as a second lifting driving shaft; a driven gear train is installed in the driven gear box, the driven gear train comprises a second synchronization gear connected to the second synchronization transmission shaft, and the second synchronization transmission shaft extends out of the gear box vertical plate through the second synchronization gear as a third lifting driving shaft; the second synchronization gear is engaged with a driven output gear through at least one intermediate gear, and the driven output gear is connected to a fourth lifting driving shaft through a key.

2. The fork synchronization lifting transmission device for the four-way shuttle vehicle according to claim 1, characterized in that: The gear box bottom plate and the gear box vertical plate adopt a mortise and tenon structure and are fastened and connected through connecting bolts at the mortise and tenon.

3. The fork synchronization lifting transmission device for the four-way shuttle vehicle according to claim 1, characterized in that: The connecting rod comprises a positioning rod part for limiting the distance between the two gear box vertical plates, both ends of the positioning rod part are provided with positioning shaft heads for ensuring that the heights of the two gear box vertical plates are consistent; the positioning shaft heads at both ends are inserted into positioning holes in the inner sides of the gear box vertical plates, and a counterbore is provided on the outer side of the gear box vertical plate, and a fastening bolt connected to the positioning shaft head is arranged in the counterbore.

4. The fork synchronization lifting transmission device for the four-way shuttle vehicle according to claim 1, characterized in that: An outer connecting part is arranged on the gear box bottom plate, and the outer connecting part is fixedly connected to the bottom of the vehicle frame through a fastener.

5. The fork synchronization lifting transmission device for the four-way shuttle vehicle according to claim 1, characterized in that: Surrounding plates are installed on the upper parts and / or both ends of the two gear box vertical plates, the surrounding plates, the gear box vertical plates and the gear box bottom plate form a gear chamber for installing a gear train, and the gear chamber is filled with lubricating grease.

6. The fork synchronization lifting transmission device for the four-way shuttle vehicle according to claim 5, characterized in that: An oil filling port is arranged on the surrounding plate.

7. The fork synchronization lifting transmission device for the four-way shuttle vehicle according to claim 5, characterized in that: The surrounding plate is made of a metal plate or a non-metal transparent plate.

8. The fork synchronization lifting transmission device for the four-way shuttle vehicle according to claim 1, characterized in that: Positioning pins are arranged between the gear box bottom plate and the gear box vertical plate.

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