Thin four-way shuttle vehicle

Abstract

The utility model relates to a thin four-way shuttle vehicle which comprises a vehicle frame, the vehicle frame is provided with a longitudinally-arranged lifting transmission shaft, and the two ends of the lifting transmission shaft are connected with gear assemblies respectively; gears of the gear assembly are distributed in the transverse direction of the frame; the cam power assembly is in transmission connection with the gear assembly; the lifting cross beams are installed on the two sides of the vehicle frame in the transverse direction and connected with the cam power assemblies through cam connecting grooves; the lifting driving assembly is connected with one gear assembly so as to drive the lifting cross beam to ascend or descend; through the structural arrangement, the multiple gears are integrated in the transverse direction, so that the vertical height of the shuttle vehicle is reduced, the effect of a certain thinness degree is achieved, meanwhile, reversing of the shuttle vehicle is achieved, and the cam power assembly converts the rotation action of the cam power assembly into the vertical lifting action of the lifting cross beam. The problem that the stacking height of lifting cannot be efficiently reduced due to the fact that a four-way shuttle vehicle adopts a hydraulic or rack and other structures to achieve a lifting transmission mode is solved.

Description

Technical Field

[0001] The present application relates to the technical field of warehouse shuttle vehicles, and in particular to a thin four-way shuttle vehicle. Background Art

[0002] In recent years, with the advancement of science and technology, the continuous innovation of production equipment has improved production efficiency. Automated warehouses have been widely used in production and logistics fields due to their high space utilization and intelligent warehousing and outbound operations, and their application rate has shown an increasing trend year by year.

[0003] For a high-space-utilization high-bay warehouse, the only requirement for storage capacity is to increase the number of warehouse floors while maintaining the same floor area. This places stricter demands on the appearance of the four-way shuttles that operate within them. On the premise that functions can be achieved normally, a thinner and lighter four-way shuttle can help further reduce the height between shelves, thereby increasing the number of warehouse floors. Therefore, designing a thinner and lighter four-way shuttle is crucial to achieving a leading market position.

[0004] By changing the transmission method of the lifting structure, the crankshaft structure can significantly reduce the stacking height of the lifting modules compared to traditional hydraulic or rack and pinion structures. Through the optimized design of the structural scheme, the transmission scheme of each actuator of the shuttle can be reasonably interspersed within the limited structural size range. Utility Model Content

[0005] The embodiment of the present application provides a thin four-way shuttle to solve the problem that the four-way shuttle in the prior art uses a hydraulic or rack structure to achieve lifting and lowering transmission mode, which cannot effectively reduce the stacking height of the lifting and lowering.

[0006] An embodiment of the present application provides a thin four-way shuttle vehicle, which includes: a frame, on which a longitudinally arranged lifting transmission shaft is provided, and both ends of the lifting transmission shaft are respectively connected to a gear assembly; the gears of the gear assembly are distributed along the transverse direction of the frame; a cam power assembly, which is transmission-connected to the gear assembly; a lifting beam, which is installed on both sides of the frame in the transverse direction and is connected to the cam power assembly through a cam connecting groove; and a lifting drive assembly, which is connected to one of the gear assemblies to drive the lifting beam to rise or fall.

[0007] In some embodiments, the cam power assembly includes a first rotating plate and a first circular shaft with a designed length; one end of the first rotating plate is transmission-connected to the gear assembly, and the other end is connected to the first circular shaft; a hollow roller is slidably provided in the cam connecting groove, and the first circular shaft extends into the hollow roller and is fixedly connected to it.

[0008] In some embodiments, the gear assembly includes two first drive gears, two second drive gears and two third drive gears, all of which are cylindrical structures and the centers of the circles are located on the same straight line; along the straight direction, the two first drive gears are adjacently meshed and connected, the two second drive gears are respectively meshed and connected with a corresponding first drive gear, and the two third drive gears are respectively meshed and connected with a corresponding second drive gear, forming a linear meshing structure; the lifting drive assembly includes a lifting reducer and a lifting drive motor, the lifting reducer is transmission-connected to one of the first drive gears, and the lifting drive motor is transmission-connected to the lifting reducer.

[0009] In some embodiments, the two first rotating plates are respectively connected to the third drive gear; when the two first rotating plates are in the initial position, the two first rotating plates are parallel to the length direction of the gear assembly; both ends of the lifting transmission shaft are connected to one of the third drive gears through a rigid coupling.

[0010] In some embodiments, an auxiliary cam assembly is also included, which includes a second rotating plate, a second circular shaft and a hollow shaft; one end of the second rotating plate is transmission-connected to the end of the first circular shaft, and the other end is fixedly connected to the second circular shaft, and a signal rod is fixedly provided at the end of the second circular shaft; the hollow shaft is sleeved on the second circular shaft, and a fixed horizontal plate is provided on it, and the fixed horizontal plate is fixedly connected to the lifting beam; a through hole is provided on the fixed horizontal plate for the second circular shaft and the hollow shaft to pass through, and a sensor assembly is provided around the through hole; the cam power assembly drives the signal rod to rotate to connect with the sensor assembly signal to control the different operating states of the shuttle.

[0011] In some embodiments, the sensor assembly includes a first sensor, a second sensor, and a third sensor, each of which is provided with a rotation slot; the first sensor, the second sensor, and the third sensor are distributed in a circular shape at equal intervals and are fixed to a fixed horizontal plate; the signal rod rotates around the second circular axis and passes through the rotation slots of the first sensor, the second sensor, and the third sensor, respectively.

[0012] In some embodiments, a longitudinal transmission shaft and a transverse transmission shaft are further included; two longitudinal driving wheels and a plurality of longitudinal driven wheels are provided in the longitudinal direction of the frame, and transverse driving wheels and transverse driven wheels are provided on both sides of the length direction of the lifting beam; a travel reducer is connected to the longitudinal transmission shaft, and the travel reducer is connected to the travel drive motor; the two ends of the longitudinal transmission shaft are respectively rotatably connected to longitudinal rotating components, and the longitudinal rotating components are rotatably connected to the two longitudinal driving wheels; the two ends of the transverse transmission shaft are respectively hinged with universal couplings, the universal couplings are transmission-connected to the corresponding transverse driving wheels, and the transverse transmission shaft is rotationally connected to the travel reducer through a transverse shaft auxiliary gear set.

[0013] In some embodiments, the longitudinal rotation assembly includes a first transmission sprocket, a second transmission sprocket and a third transmission sprocket; the first transmission sprocket is transmission-connected to one end of the transverse transmission shaft, the second transmission sprocket is transmission-connected to the first transmission sprocket through a first chain, and the third transmission sprocket is transmission-connected to the second transmission sprocket through a second chain; a first tensioning sprocket is provided between the first transmission sprocket and the second transmission sprocket, and a second tensioning sprocket is provided between the second transmission sprocket and the third transmission sprocket; the second transmission sprocket and the third transmission sprocket are both transmission-connected to a longitudinal drive wheel.

[0014] In some embodiments, the transverse axis auxiliary gear set includes a transverse driving gear and a transverse driven gear; the transverse driving gear is rotationally connected to the travel reducer, and the transverse driven gear is provided on the transverse transmission shaft, and the transverse driving gear and the transverse driven gear are meshed and connected.

[0015] In some embodiments, a fixing plate is provided at the hinged joints of the two universal couplings and the transverse transmission shaft, and a limiting groove is provided on the fixing plate for the transverse transmission shaft to pass through and limit the transverse transmission shaft.

[0016] The beneficial effects of the technical solution provided by this application include:

[0017] The present invention provides a thin, four-way shuttle vehicle, wherein the frame is the shuttle's basic structure, providing support and stability. Lifting beams, mounted on either side of the frame, are equipped with wheels for one direction of travel. The wheels adjust their height to contact or disengage with the corresponding track, achieving four-way travel. Cam grooves are provided within the lifting beams to guide their movement. Two sets of gear assemblies are arranged along a horizontal line, a key feature of the technical solution. Each set consists of multiple meshing gears to create a transverse drive mechanism. This connection structure can be integrated into a single unit, achieving both direction reversal and drive while significantly reducing the shuttle's vertical height. One of the gears is connected to the lifting drive assembly to transmit power. The ends of the lifting drive shaft are connected to gears in the two gear assemblies, rotating to transmit driving force and achieve the overall lifting of the lifting beams on both sides. The cam power assembly, in conjunction with the cam grooves, converts the cam power assembly's own rotational motion into vertical lifting motion of the lifting beams. This solves the problem in the prior art that the four-way shuttle adopts a transmission mode of hydraulic or rack structures to realize lifting and lowering, and cannot effectively reduce the stacking height of the lifting and lowering. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 A schematic diagram of the structure of a thin four-way shuttle provided in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of the driving system structure provided in an embodiment of the present application;

[0021] Figure 3 A schematic diagram of the lifting system structure provided in an embodiment of the present application;

[0022] Figure 4 A schematic diagram of the lifting beam structure provided in an embodiment of the present application;

[0023] Figure 5 A schematic diagram of the explosion structure of the lifting beam provided in an embodiment of the present application;

[0024] Figure 6 A schematic diagram of the sensor assembly and signal component structure provided in an embodiment of the present application;

[0025] Figure 7 This is an overall schematic diagram of the thin four-way shuttle provided in an embodiment of the present application.

[0026] In the figure: 1. Frame; 2. Lifting beam; 31. Transverse driving wheel; 32. Transverse driven wheel; 33. Longitudinal driving wheel; 34. Longitudinal driven wheel; 41. Transverse driving gear; 42. Transverse driven gear; 5. Cam power assembly; 51. First rotating plate; 52. First circular shaft; 6. Fixed plate; 7. Lifting drive assembly; 71. Lifting reducer; 72. Lifting drive motor; 8. Gear assembly; 81. First driving gear; 82. Second driving gear; 83. Third driving gear; 9. Lifting transmission shaft; 10. Rigid coupling; 11. Auxiliary cam assembly; 111. Second rotating plate Moving plate; 112, hollow shaft; 113, second circular shaft; 12, signal rod; 13, sensor assembly; 131, first sensor; 132, second sensor; 133, third sensor; 14, longitudinal transmission shaft; 15, transverse transmission shaft; 16, travel reducer; 17, travel drive motor; 18, universal coupling; 191, first transmission sprocket; 192, second transmission sprocket; 193, third transmission sprocket; 194, first tensioning sprocket; 195, second tensioning sprocket; 196, first chain; 197, second chain; 20, fixed cross plate; 21, cam connecting groove. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0028] The embodiment of the present application provides a thin four-way shuttle, which can solve the problem that the four-way shuttle in the related art uses a hydraulic or rack structure to achieve lifting and lowering transmission mode, and cannot effectively reduce the stacking height of the lifting and lowering.

[0029] Since the four-way shuttle with a lighter thickness can further reduce the height between shelves and increase the number of warehouse floors under the premise of normal function, and the existing shuttle adopts other structural forms such as hydraulic or rack and pinion, which cannot greatly reduce the stacking height of the lifting modules, a crankshaft structure is designed. Through the optimization design of the structural scheme, the transmission scheme of each actuator of the shuttle can be reasonably interspersed within the limited structural size range.

[0030] refer to Figures 1-7 A thin four-way shuttle vehicle comprises: a frame 1, on which a longitudinally arranged lifting transmission shaft 9 is provided, and both ends of the lifting transmission shaft 9 are respectively connected to a gear assembly 8; the gears of the gear assembly 8 are distributed along the transverse direction of the frame 1; a cam power assembly 5, which is transmission-connected to the gear assembly 8; a lifting beam 2, which is installed on both sides of the frame 1 in the transverse direction and is connected to the cam power assembly 5 through a cam connecting groove 21; a lifting drive assembly 7, which is connected to one of the gear assemblies 8 to drive the lifting beam 2 to rise or fall.

[0031] With this structural arrangement, the frame 1 serves as the shuttle's foundation, providing support and stability. Lifting beams 2, mounted on either side of the frame 1, are equipped with wheels for one direction of travel. These wheels can be adjusted in height to engage or disengage with the corresponding track, enabling four-way travel. Cam grooves 21 are incorporated into the lifting beams 2 to guide their movement. Two sets of gear assemblies 8, arranged along a horizontal line, are key to solving the technical problem. Each set consists of multiple meshing gears to create a transverse drive mechanism. This connection allows for integrated transverse integration, enabling both direction reversal and drive while significantly reducing the shuttle's vertical height. One of the gears is connected to the lifting drive assembly 7 for power transmission. The ends of the lifting drive shaft 9 are connected to gears in the two gear assemblies 8, rotating to transmit driving force and achieving the integrated lifting of the lifting beams 2 on both sides. The cam power assembly 5, in conjunction with the cam grooves 21, converts its rotational motion into vertical lifting motion of the lifting beam 2. This solves the problem in the prior art that the four-way shuttle adopts a transmission mode of hydraulic or rack structures to realize lifting and lowering, and cannot effectively reduce the stacking height of the lifting and lowering.

[0032] In some preferred embodiments, the cam power assembly 5 includes a first rotating plate 51 and a first circular shaft 52 with a designed length; one end of the first rotating plate 51 is transmission-connected to the gear assembly 8, and the other end is connected to the first circular shaft 52; a hollow roller is slidingly provided in the cam connecting groove 21, and the first circular shaft 52 extends into the hollow roller and is fixedly connected to it.

[0033] This embodiment specifically describes the structure and function of the cam power assembly 5, wherein one end of the first rotating plate 51 is transmission-connected to the gear assembly 8 so that it can rotate along with the gear assembly 8, and a first circular shaft 52 is provided at the other end, and a hollow roller connected to it is provided in the cam connecting groove 21 so that it can slide laterally in the cam connecting groove 21, thereby transmitting the motion to the cam part and converting the rotational motion into linear lifting motion.

[0034] In some preferred embodiments, the gear assembly 8 includes two first drive gears 81, two second drive gears 82 and two third drive gears 83, all of which are cylindrical structures, and the centers of the circles are located on the same straight line; along the straight direction, the two first drive gears 81 are adjacently meshed and connected, the two second drive gears 82 are respectively meshed and connected with a corresponding first drive gear 81, and the two third drive gears 83 are respectively meshed and connected with a corresponding second drive gear 82, forming a linear meshing structure; the lifting drive assembly 7 includes a lifting reducer 71 and a lifting drive motor 72, the lifting reducer 71 is transmission-connected to one of the first drive gears 81, and the lifting drive motor 72 is transmission-connected to the lifting reducer 71.

[0035] Through this structural design, each group is laterally configured with two adjacent first drive gears 81, and these two gears are engaged with each other to realize the initial transmission of the transmission power, and the lifting reducer 71 is connected to one of the first drive gears 81 to provide power for it; a gear structure is provided on the side of each first drive gear 81, and the two corresponding second drive gears 82 are respectively engaged with the first drive gear 81, thereby further transmitting the motion; each second drive gear 82 is engaged with the corresponding two third drive gears 83 to realize the final output transmission to the lifting transmission shaft 9; the lifting drive motor 72 is responsible for providing the power required by the lifting reducer 71, and the main function of the lifting reducer 71 is to convert the high speed and low torque output by the lifting drive motor 72 into low speed and high torque, so as to more effectively drive the lifting beam 2.

[0036] In some preferred embodiments, the two first rotating plates 51 are respectively connected to the third driving gear 83. When the two first rotating plates 51 are in the initial position, the two first rotating plates 51 are parallel to the length direction of the gear assembly 8; both ends of the lifting transmission shaft 9 are connected to one of the third driving gears 83 through a rigid coupling 10.

[0037] In this embodiment, both ends of the lifting drive shaft 9 are rotationally connected to the third drive gears 83 of the two gear sets via rigid couplings 10, ensuring efficient power transmission to the anchored load. When in the initial position, the first rotating plates 51 of the two cam power assemblies 5, mounted on the same gear assembly 8, are parallel to the gear assembly 8. This means that when they rotate, they better mate with their corresponding cam connection slots 21, rotating in a mirror-image manner. This arrangement facilitates smooth raising and lowering of the lifting beam 2.

[0038] In some preferred embodiments, an auxiliary cam assembly 11 is further included, which includes a second rotating plate 111, a second circular shaft 113 and a hollow shaft 112; one end of the second rotating plate 111 is transmission-connected to the end of the first circular shaft 52, and the other end is fixedly connected to the second circular shaft 113, and a signal rod 12 is fixedly provided at the end of the second circular shaft 113; the hollow shaft 112 is sleeved on the second circular shaft 113, and a fixed horizontal plate 20 is provided on it, and the fixed horizontal plate 20 is fixedly connected to the lifting beam 2; a through hole is provided on the fixed horizontal plate 20 for the second circular shaft 113 and the hollow shaft 112 to pass through, and a sensor assembly 13 is provided around the through hole; the cam power assembly 5 drives the signal rod 12 to rotate to connect with the sensor assembly 13 signal to control the different operating states of the shuttle.

[0039] Through this structural design, when the cam power assembly 5 drives the second rotating plate 111 and the second circular shaft 113 to rotate, the hollow shaft 112 sleeved on the second circular shaft 113 does not rotate therewith. A fixed horizontal plate 20 is also fixed on the hollow shaft 112, and a signal rod 12 that rotates therewith is provided on the second circular shaft 113. When the signal rod 12 rotates, it can trigger the sensor assembly 13 connected to the fixed horizontal plate 20 to be inductively connected to it, thereby controlling the different operating states of the shuttle vehicle.

[0040] In some preferred embodiments, the sensor assembly 13 includes a first sensor 131, a second sensor 132 and a third sensor 133, each of which is provided with a rotation slot; the first sensor 131, the second sensor 132 and the third sensor 133 are distributed in a circular shape at equal intervals and are fixed on the fixed horizontal plate 20; the signal rod 12 rotates around the second circular axis 113, passing through the rotation slots of the first sensor 131, the second sensor 132 and the third sensor 133 respectively.

[0041] In this embodiment, the first sensor 131 is a mid-lift sensor, the second sensor 132 is a lower lift sensor, and the third sensor is an upper lift sensor. The signal rod 12 rotates around the end of the second circular shaft 113. As the signal rod 12 rotates, it passes through the rotation slots of the first sensor 131, the second sensor 132, and the third sensor 133. When the lower lift sensor is triggered, the shuttle switches to a lateral travel posture; when the mid-lift sensor is triggered, the shuttle switches to a longitudinal travel posture; when the upper lift sensor is triggered, the shuttle switches to a lifting and picking up posture. This means that the top of this thin four-way shuttle is also equipped with a lifting system. When the signal rod 12 passes through the slot of each sensor, the information is transmitted in real time to the control system to control the different operating states of the shuttle.

[0042] In this embodiment, in some preferred embodiments, it also includes a longitudinal transmission shaft 14 and a transverse transmission shaft 15; two longitudinal driving wheels 33 and multiple longitudinal driven wheels 34 are provided in the longitudinal direction of the frame 1, and transverse driving wheels 31 and transverse driven wheels 32 are respectively provided on both sides of the length direction of the lifting beam 2; the longitudinal transmission shaft 14 is connected to a travel reducer 16, and the travel reducer 16 is connected to a travel drive motor 17; the two ends of the longitudinal transmission shaft 14 are respectively rotatably connected to longitudinal rotation components, and the longitudinal rotation components are rotatably connected to the two longitudinal driving wheels 33; the two ends of the transverse transmission shaft 15 are respectively hinged with universal couplings 18, the universal couplings 18 are transmission-connected to the corresponding transverse driving wheels 31, and the transverse transmission shaft 15 is rotationally connected to the travel reducer 16 through a transverse axis auxiliary gear set.

[0043] With this structural design, the longitudinal drive shaft 14 serves as the longitudinal power transmission axis of the equipment. It is connected to a travel reducer 16, which in turn is connected to a travel drive motor 17, providing the necessary power to the longitudinal drive wheels 33. Universal joints 18 are hinged at each end of the transverse drive shaft 15, which in turn are connected to transverse drive wheels 31, enabling the transverse drive wheels 31 to rise and fall with the lifting beam 2. When the travel drive motor 17 is activated and transmits power to the longitudinal drive shaft 14 via the travel reducer 16, the longitudinal rotation assembly drives the longitudinal drive wheels 33, simultaneously driving the longitudinal driven wheels 34, thereby achieving longitudinal movement of the lifting beam 2. After receiving power from the travel reducer 16, the transverse drive shaft 15 transmits this power to the universal joint 18 via a transverse shaft auxiliary gear set, which in turn drives the transverse drive wheels 31. This integrated longitudinal and transverse transmission system, through rational structural design, dynamic drive control, and multi-point connection, achieves flexible and efficient motion for the shuttle.

[0044] In some preferred embodiments, the longitudinal rotation assembly includes a first transmission sprocket 191, a second transmission sprocket 192 and a third transmission sprocket 193; the first transmission sprocket 191 is transmission-connected to one end of the transverse transmission shaft 15, the second transmission sprocket 192 is transmission-connected to the first transmission sprocket 191 through a first chain 196, and the third transmission sprocket 193 is transmission-connected to the second transmission sprocket 192 through a second chain 197; a first tensioning sprocket 194 is provided between the first transmission sprocket 191 and the second transmission sprocket 192, and a second tensioning sprocket 195 is provided between the second transmission sprocket 192 and the third transmission sprocket 193; the second transmission sprocket 192 and the third transmission sprocket 193 are both transmission-connected to the longitudinal drive wheel 33.

[0045] In this embodiment, a first transmission sprocket 191 is connected to one end of the transverse transmission shaft 15 and is responsible for obtaining power from the transverse transmission shaft 15. A second transmission sprocket 192 is connected to the first transmission sprocket 191 via a first chain 196 and serves as a transmission element for power transmission, transmitting the rotational motion transmitted from the first transmission sprocket 191 to the second transmission sprocket 192. A third transmission sprocket 193 is connected to the second transmission sprocket 192 via a second chain 197, further transmitting power and providing direct drive to the longitudinal drive wheel 33. A first tensioning sprocket 194 and a second tensioning sprocket 195 are respectively provided between the two adjacent sprockets to keep the chains taut and prevent them from loosening and causing transmission failure. The longitudinal drive wheel 33 is directly connected to the second transmission sprocket 192 and the third transmission sprocket 193, and the motion of the rotating sprockets enables the longitudinal movement of the shuttle.

[0046] In some preferred embodiments, the transverse axis auxiliary gear set includes a transverse driving gear 41 and a transverse driven gear 42; the transverse driving gear 41 is rotationally connected to the travel reducer 16, and the transverse driven gear 42 is provided on the transverse transmission shaft 15, and the transverse driving gear 41 and the transverse driven gear 42 are meshed and connected.

[0047] Through this structural design, the transverse driving gear 41 is rotationally connected to the travel reducer 16, is responsible for obtaining power from the travel reducer 16, and transmits the power to the transverse driven gear 42 through gear meshing. The transverse driven gear 42 is located on the transverse transmission shaft 15 and meshes with the transverse driving gear 41. It is used to receive power from the transverse driving gear 41 and convert it into rotational motion of the transverse transmission shaft 15.

[0048] In some preferred embodiments, a fixing plate 6 is provided at the hinged joints of the two universal couplings 18 and the transverse transmission shaft 15 . The fixing plate 6 is provided with a limiting groove for the transverse transmission shaft 15 to pass through and limit the transverse transmission shaft 15 .

[0049] In this embodiment, the universal joint 18 is used to connect two shafts that move relative to each other, allowing a certain angle of offset between the shafts to ensure smooth power transmission; the fixed plate 6 is located at the hinge between the universal joint 18 and the transverse transmission shaft 15, and plays a supporting and limiting role.

[0050] The beneficial effects brought by the utility model include:

[0051] The present invention provides a thin, four-way shuttle vehicle, wherein a frame 1 forms the shuttle's basic structure, providing support and stability. Lifting beams 2, mounted on either side of the frame 1, are equipped with wheels for one direction of travel. The wheels adjust their height to engage or disengage with the corresponding track, achieving four-way travel. Cam connecting grooves 21 are provided within the lifting beams 2 to guide their elevation. Two sets of gear assemblies 8 are arranged along a horizontal line, a key feature of the technical solution. Each set consists of multiple meshing gears to create a transverse drive mechanism. This connection allows for integrated transverse integration, enabling both direction reversal and drive while significantly reducing the shuttle's vertical height. One of the gears is connected to a lifting drive assembly 7 for power transmission. The ends of a lifting drive shaft 9 are connected to gears in the two gear assemblies 8, respectively. Rotationally transmitting driving force, the lifting beams 2 on either side are raised and lowered. The cam power assembly 5, in conjunction with the cam connecting grooves 21, converts its rotational motion into vertical lifting motion for the lifting beam 2. This solves the problem in the prior art that the four-way shuttle adopts a transmission mode of hydraulic or rack structures to realize lifting and lowering, and cannot effectively reduce the stacking height of the lifting and lowering.

[0052] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0053] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0054] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A thin four-way shuttle vehicle, characterized in that: It includes: A vehicle frame (1) is provided with a longitudinally arranged lifting transmission shaft (9), with gear assemblies (8) connected to both ends of the lifting transmission shaft (9); the gears of the gear assembly (8) are distributed along the transverse direction of the vehicle frame (1); A cam power assembly (5) is transmission-connected to the gear assembly (8); A lifting beam (2) is mounted on both sides of the vehicle frame (1) in the transverse direction and is connected to the cam power assembly (5) via a cam connection groove (21); A lifting drive assembly (7) is connected to one of the gear assemblies (8) to drive the lifting beam (2) to rise or fall.

2. The thin four-way shuttle according to claim 1, characterized in that: The cam power assembly (5) comprises a first rotating plate (51) having a designed length and a first circular shaft (52); One end of the first rotating plate (51) is in transmission connection with the gear assembly (8), and the other end is connected to the first circular shaft (52); A hollow roller is slidably provided in the cam connection groove (21), and the first circular shaft (52) extends into the hollow roller and is fixedly connected thereto.

3. The thin four-way shuttle according to claim 2, characterized in that: The gear assembly (8) comprises two first drive gears (81), two second drive gears (82) and two third drive gears (83), all of which are cylindrical structures, and the centers of the circles are located on the same straight line; Along the straight line direction, the two first drive gears (81) are adjacently meshed and connected, the two second drive gears (82) are respectively meshed and connected with a corresponding first drive gear (81), and the two third drive gears (83) are respectively meshed and connected with a corresponding second drive gear (82), forming a straight line meshing structure; The lifting drive assembly (7) includes a lifting reducer (71) and a lifting drive motor (72), wherein the lifting reducer (71) is transmission-connected to one of the first drive gears (81), and the lifting drive motor (72) is transmission-connected to the lifting reducer (71).

4. The thin four-way shuttle according to claim 3, characterized in that: The two first rotating plates (51) are respectively connected to the third driving gear (83); when the two first rotating plates (51) are in the initial position, the two first rotating plates (51) are parallel to the length direction of the gear assembly (8); Both ends of the lifting transmission shaft (9) are connected to one of the third driving gears (83) through a rigid coupling (10).

5. The thin four-way shuttle according to claim 4, characterized in that: Also included is an auxiliary cam assembly (11), which includes a second rotating plate (111), a second circular shaft (113) and a hollow shaft (112); One end of the second rotating plate (111) is drivingly connected to the end of the first circular shaft (52), and the other end is fixedly connected to the second circular shaft (113), and a signal rod (12) is fixedly provided at the end of the second circular shaft (113); The hollow shaft (112) is sleeved on the second circular shaft (113), and a fixed transverse plate (20) is provided on the hollow shaft, and the fixed transverse plate (20) is fixedly connected to the lifting beam (2); the fixed transverse plate (20) is provided with a through hole for the second circular shaft (113) and the hollow shaft (112) to pass through, and a sensor assembly (13) is provided around the through hole; The cam power assembly (5) drives the signal rod (12) to rotate so as to be connected to the sensor assembly (13) by signal, thereby controlling different operating states of the shuttle vehicle.

6. The thin four-way shuttle according to claim 5, characterized in that: The sensor assembly (13) comprises a first sensor (131), a second sensor (132) and a third sensor (133), and each of the sensors is provided with a rotation slot; The first sensor (131), the second sensor (132), and the third sensor (133) are distributed in a circular pattern at equal intervals and are fixed on the fixed horizontal plate (20); The signal rod (12) rotates around the second circular axis (113) and passes through the rotation slots of the first sensor (131), the second sensor (132) and the third sensor (133) respectively.

7. The thin four-way shuttle according to claim 1, characterized in that: Also includes a longitudinal transmission shaft (14) and a transverse transmission shaft (15); The vehicle frame (1) is provided with two longitudinal driving wheels (33) and a plurality of longitudinal driven wheels (34) in the longitudinal direction, and the lifting beam (2) is provided with transverse driving wheels (31) and transverse driven wheels (32) on both sides in the longitudinal direction. The longitudinal transmission shaft (14) is connected to a travel reducer (16), and the travel reducer (16) is connected to a travel drive motor (17); both ends of the longitudinal transmission shaft (14) are rotatably connected to longitudinal rotation components, and the longitudinal rotation components are rotatably connected to the two longitudinal drive wheels (33); Universal couplings (18) are respectively hinged at both ends of the transverse transmission shaft (15), and the universal couplings (18) are transmission-connected to the corresponding transverse drive wheels (31), and the transverse transmission shaft (15) is rotationally connected to the travel reducer (16) via a transverse shaft auxiliary gear set.

8. The thin four-way shuttle according to claim 7, characterized in that: The longitudinal rotation assembly comprises a first transmission sprocket (191), a second transmission sprocket (192) and a third transmission sprocket (193); The first transmission sprocket (191) is transmission-connected to one end of the transverse transmission shaft (15); the second transmission sprocket (192) is transmission-connected to the first transmission sprocket (191) via a first chain (196); and the third transmission sprocket (193) is transmission-connected to the second transmission sprocket (192) via a second chain (197); A first tensioning sprocket (194) is provided between the first transmission sprocket (191) and the second transmission sprocket (192), and a second tensioning sprocket (195) is provided between the second transmission sprocket (192) and the third transmission sprocket (193); The second transmission sprocket (192) and the third transmission sprocket (193) are both transmission-connected to the longitudinal drive wheel (33).

9. The thin four-way shuttle according to claim 7, characterized in that: The transverse axis auxiliary gear set includes a transverse driving gear (41) and a transverse driven gear (42); The transverse driving gear (41) is rotatably connected to the travel reducer (16), the transverse driven gear (42) is provided on the transverse transmission shaft (15), and the transverse driving gear (41) and the transverse driven gear (42) are meshed and connected.

10. The thin four-way shuttle according to claim 7, characterized in that: A fixing plate (6) is provided at the hinged joints between the two universal couplings (18) and the transverse transmission shaft (15). The fixing plate (6) is provided with a limiting groove for the transverse transmission shaft (15) to pass through and limit the transverse transmission shaft (15).

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