Four-way shuttle vehicle

Abstract

The utility model relates to four -way shuttle vehicle field discloses a four -way shuttle vehicle, it includes the vehicle body, carries thing subassembly, drive component and two groups of transmission components, two groups of lifting assemblies, drive component sets up between two groups of transmission components along the width direction of vehicle body, two groups of lifting assemblies are arranged respectively at both ends of the width direction of vehicle body, transmission component includes a plurality of transmission gear that is sequentially engaged along the width direction, transmission gear rotatably installs on the vehicle body around the length direction, transmission gear has one for input gear, sets up in transmission component along the width direction close to one end of drive component, and the output end transmission connection of drive component, transmission gear has one for output gear, and the output gear is located at lifting assembly along the width direction, and drives the lifting assembly to drive the carrying thing subassembly to lift relative vehicle body through the drive. Transmission component sets up into a plurality of transmission gear engagement, and the lifting stability is good, and the bearing capacity is good.

Description

Technical Field

[0001] This utility model relates to the field of four-way shuttle vehicles. Background Technology

[0002] Four-way shuttles are used to move goods in warehousing systems, but existing four-way shuttle lifting and transmission structures have defects such as excessive size, insufficient load capacity, and insufficient stability. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of the existing four-way shuttle car, such as insufficient load capacity and inadequate stability, and to provide a four-way shuttle car.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] A four-way shuttle vehicle includes a vehicle body, a cargo-carrying assembly, a drive assembly, and two sets of corresponding transmission assemblies and two sets of lifting assemblies. The drive assembly is disposed between the two sets of transmission assemblies along the width direction of the vehicle body. The two sets of lifting assemblies are respectively disposed at both ends of the width direction of the vehicle body. The transmission assembly includes a plurality of transmission gears meshing sequentially along the width direction. The transmission gears are rotatably mounted on the vehicle body about the length direction of the vehicle body. Two of the transmission gears are an input gear and an output gear. The input gear is disposed in the transmission assembly at one end along the width direction near the drive assembly and is connected to the output end of the drive assembly. The output gear is located at the lifting assembly along the width direction and drives the lifting assembly to lift the cargo-carrying assembly relative to the vehicle body.

[0006] In this design: the cargo-carrying component is used to hold items, and the transmission component transmits power from the drive component along the width of the vehicle body to the lifting component, which then drives the cargo-carrying component to lift. Two sets of lifting components are respectively located at both ends of the vehicle body width direction. The drive component is positioned between the two sets of transmission components along the width direction. Through multiple transmission gears meshing sequentially along the width direction in the transmission component, the power of the drive component is transmitted to the outer lifting component. This design ensures accurate and reliable power transmission, prevents the transmission component from tilting due to the weight of the cargo-carrying component and the items it holds, and provides good lifting stability. Furthermore, it offers good load-bearing capacity.

[0007] Preferably, the four-way shuttle further includes a dual-output assembly, which includes an active component and two driven components mounted on the vehicle body. The active component is drivenly connected to the output end of the drive assembly. The two driven components are respectively disposed at both ends of the active component along the width direction and are drivenly connected to the active component. The two driven components correspond one-to-one with the input gears in the two sets of transmission assemblies, and the driven components are drivenly connected to the corresponding output gears.

[0008] In this scheme, a dual-output component is set up to divide the power of the drive component into two power sources along the width of the vehicle body, which are then transmitted to the two power components respectively.

[0009] Preferably, both the driving member and the driven member are gears rotatably mounted on the vehicle body about the length direction, and the driving member and the driven member mesh.

[0010] Preferably, the drive assembly is located in the middle of the vehicle body in the width direction, and the input gears of the two driven members and / or the two sets of transmission assemblies are symmetrically arranged about the output end of the drive assembly in the width direction.

[0011] Preferably, the dual-output component is a speed reduction component.

[0012] Preferably, the driving member and the driven member are both gears rotatably mounted on the vehicle body about the length direction and meshing with each other. The output end of the output component outputs rotational power. The output end is coaxial with the driving member, and the driven member is coaxial with the corresponding input gear.

[0013] Preferably, the load assembly extends along the length direction, and the lifting assembly includes a synchronous transmission member and a plurality of lifting members spaced apart along the length direction for lifting the load assembly. The synchronous transmission member extends along the length direction and is drively connected to the output gear and the lifting members.

[0014] In this scheme, the power of the output gear is transmitted to the synchronous transmission component, which enables multiple lifting components spaced apart along the length to lift the load assembly together, forming multi-point lifting along the length, which facilitates stable force distribution.

[0015] Preferably, the cargo assembly includes two cargo plates respectively disposed at both ends in the width direction of the vehicle body, and a set of lifting assemblies is used to lift one of the cargo plates.

[0016] Preferably, the synchronous transmission component is a transmission shaft, the lifting component is a rack, and the lifting assembly further includes a synchronous gear with the same tooth profile parameters as the output gear. The output gear and the synchronous gear are fixed on the synchronous transmission component, and one lifting component corresponds to and meshes with one output gear or one synchronous gear.

[0017] Preferably, the transmission assembly is disposed at one end of the vehicle body along its length.

[0018] In this design, the layout avoids occupying space in other parts of the vehicle body, facilitating the use of other spaces within the vehicle.

[0019] Preferably, a set of the lifting assembly includes three lifting members, two of which are located at both ends of the vehicle body along the length direction, and the other lifting member is located in the middle of the vehicle body along the length direction.

[0020] Preferably, the four-way shuttle also includes:

[0021] The first wheel assembly is rotatably mounted on the vehicle body for traveling along the length direction;

[0022] The reversing assembly includes two reversing bodies, which are respectively disposed at both ends of the vehicle body along its length.

[0023] The second wheel assembly is rotatably mounted on the commutator for traveling along the width direction;

[0024] One of the transmission gears in the transmission assembly is an idler gear located between the input gear and the output gear. A synchronous idler gear with the same tooth profile parameters as the idler gear meshes on the synchronous gear. The commutation assembly also includes multiple commutation members. A portion of the multiple commutation members is drivenly connected to the idler gear, and another portion is drivenly connected to the synchronous idler gear. The commutation members are used to drive the commutation body to lift relative to the vehicle body, and the lifting members are used to drive the commutation body to descend relative to the vehicle body.

[0025] Preferably, the four-way shuttle further includes a reset assembly, which includes a guide and an elastic member. The guide is mounted on the cargo assembly and extends in the direction of lifting the cargo assembly. The elastic member is telescopically arranged along the guide and configured such that the elastic member is compressed when the cargo assembly is lifted relative to the vehicle body.

[0026] In this solution: when the load assembly is lifted, the elastic element is compressed. The elastic element can be stretched to help the load assembly descend and reset. At the same time, a guide element is set to ensure that the load assembly remains stable during lifting and lowering, and to avoid tilting or jamming.

[0027] Preferably, the guide is fixed below the cargo assembly, the guide has a lower limit portion, the vehicle body has an upper limit portion located above the lower limit portion, and the elastic member is limited between the lower limit portion and the upper limit portion.

[0028] In this design, the vehicle body height can be kept relatively small, resulting in a compact structure.

[0029] Preferably, the upper limit portion is provided with a sliding through hole, and the guide member is slidably inserted into the sliding through hole.

[0030] In this design, a sliding through hole and a guide component are provided on the upper limit section of the vehicle body to improve the stability of lifting and lowering the cargo assembly.

[0031] The positive and progressive effects of this utility model are as follows:

[0032] Two sets of lifting components are respectively located at both ends of the vehicle body width direction. The drive component is located between the two sets of transmission components along the width direction. Through multiple transmission gears meshing sequentially along the width direction in the transmission component, the power of the drive component is transmitted to the outer lifting component. On the one hand, it can ensure accurate and reliable power transmission and avoid the transmission component from tilting due to the weight of the load component and the loaded items, resulting in good lifting stability; on the other hand, it has good load-bearing capacity. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of a four-way shuttle vehicle according to an embodiment of the present invention;

[0034] Figure 2 This is a schematic diagram of the power transmission of a drive assembly according to an embodiment of the present invention;

[0035] Figure 3 This is a cross-sectional view of a four-way shuttle vehicle according to an embodiment of the present invention;

[0036] Figure 4 This is a schematic diagram of a vehicle body according to an embodiment of the present invention;

[0037] Figure 5 This is a schematic diagram of the reset component according to an embodiment of the present invention;

[0038] Figure 6 This is a schematic diagram of the carrier plate being lifted according to an embodiment of the present invention;

[0039] Figure 7 This is a schematic diagram of the loading plate falling according to an embodiment of the present invention;

[0040] Figure 8 This is a schematic diagram of the commutator falling according to an embodiment of the present invention.

[0041] Figure 9 This is a schematic diagram of the commutator being raised according to an embodiment of the present invention;

[0042] Explanation of reference numerals in the attached figures:

[0043] 1000 four-way shuttle buses;

[0044] Vehicle body 1, first cavity 11, second cavity 12, third cavity 13, mounting part 14, upper limit part 141, sliding through hole 142, positioning groove 15;

[0045] Carrying component 2, carrying plate 21;

[0046] Driver component 3;

[0047] Transmission assembly 4, input gear 41, output gear 42, idler gear 43, drive wheel 44;

[0048] Lifting assembly 5, lifting component 51, synchronous transmission component 52, synchronous gear 53;

[0049] Dual-output component 6, driving component 61, driven component 62;

[0050] Reset assembly 7, guide 71, lower limit part 711, elastic element 72;

[0051] First wheel group 81, first walking wheel 811, second wheel group 82, second walking wheel 821;

[0052] Commutator 91, descending action part 911, ascending action part 912, commutating component 92, synchronous idler wheel 93. Detailed Implementation

[0053] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0054] This embodiment provides a four-way shuttle vehicle. Figures 1-9 This is a schematic diagram of this embodiment.

[0055] like Figure 1 , Figure 2 The four-way shuttle 1000 includes a vehicle body 1, a cargo-carrying assembly 2, a drive assembly 3, two sets of transmission assemblies 4, and two sets of lifting assemblies 5, with the transmission assemblies 4 and lifting assemblies 5 corresponding one-to-one; the length direction of the vehicle body 1 is the L direction, the width direction is the W direction, and the height direction is the H direction; the drive assembly 3 is positioned along the W direction between the two sets of transmission assemblies 4, and the two sets of lifting assemblies 5 are respectively positioned at both ends of the vehicle body 1 along the W direction; as shown... Figure 2 , Figure 3The transmission assembly 4 includes multiple transmission gears, which are arranged sequentially along the W direction. Adjacent transmission gears in the transmission assembly 4 mesh with each other. The transmission gears are rotatably mounted on the vehicle body 1 around the L direction. Among the multiple transmission gears, one is an input gear 41 and the other is an output gear 42. The input gear 41 is located at the end of the transmission assembly 4 along the W direction near the drive assembly 3, and the input gear 41 is connected to the output end of the drive assembly 3. The output gear 42 is located at the lifting assembly 5 along the W direction, and the output gear 42 drives the lifting assembly 5 to lift the cargo assembly 2 relative to the vehicle body 1 along the H direction.

[0056] The cargo-carrying assembly 2 is used to hold items. The transmission assembly 4 transmits power from the drive assembly 3 along the W direction to the lifting assembly 5, which then drives the cargo-carrying assembly 2 to lift. Two sets of lifting assemblies 5 are respectively located at both ends of the vehicle body 1 in the width direction. The drive assembly 3 is located between the two sets of transmission assemblies 4 along the width direction. Through multiple transmission gears meshing sequentially along the width direction in the transmission assembly 4, the power of the drive assembly 3 is transmitted to the outer lifting assembly 5. This ensures accurate and reliable power transmission, preventing the transmission assembly 4 from tilting due to the weight of the cargo-carrying assembly 2 and the items it holds, resulting in good lifting stability. Furthermore, it provides good load-bearing capacity.

[0057] like Figure 2 The four-way shuttle 1000 also includes a dual-output assembly 6, which includes an active component 61 and two driven components 62 mounted on the vehicle body 1. The active component 61 is driven by the output end of the drive assembly 3. The two driven components 62 are respectively located at both ends of the active component 61 along the W direction. The driven components 62 are driven by the active component 61, and the two driven components 62 correspond one-to-one with the input gears 41 in the two sets of transmission assemblies 4. The driven components 62 are driven by the corresponding input gears 41, forming a transmission path in which the output end of the output assembly, the active component 61, the driven components 62, and the input gears 41 corresponding to the driven components 62 are sequentially connected. By setting the dual-output assembly 6, the power of the drive assembly 3 can be divided into two power sources along the width direction of the vehicle body 1 and transmitted to the two power assemblies respectively. In other embodiments, the dual output component 6 may not be provided. For example, a gear may be connected to the output end of the drive component 3, and the input gears 41 in the two transmission components 4 may be meshed with the gears provided at the output end of the drive component 3 respectively; or, the two input gears 41 may be staggered along the L direction to be connected to the output end of the drive component 3.

[0058] Furthermore, the dual-output component 6 is a reduction component that reduces the power supplied by the output end of the drive component 3 before transmitting it to the input gear 41, thereby reducing the transmission ratio requirements of the transmission component 4 and the lifting component 5.

[0059] like Figure 2The drive assembly 3 is located at the center of the vehicle body 1 along the W direction. Two driven members 62 are symmetrically arranged along the W direction about the output end of the drive assembly 3. The input gears 41 of the two sets of transmission assemblies 4 are also symmetrically arranged along the W direction about the output end of the drive assembly 3, thus simplifying the structure of the four-way shuttle 1000. In other embodiments, the drive assembly 3 can be located at the center or off-center of the vehicle body 1 along the W direction, depending on the arrangement requirements of the components on the four-way shuttle 1000.

[0060] In this embodiment, both the driving element 61 and the driven element 62 are gears. The driving element 61 and both driven elements 62 are meshed, resulting in good transmission stability, good load-bearing capacity, and a compact structure. Furthermore, the output end of the drive assembly 3 outputs rotational power. The drive assembly 3 can be, but is not limited to, a motor. When the drive assembly 3 uses a motor, the output end is the motor's output shaft. The output end is coaxial with the driving element 61, and the driven element 62 is coaxial with its corresponding input gear 41, resulting in a compact structure and reliable transmission. In other embodiments, the driving element 61 and the driven element 62 can be, but are not limited to, gears, sprockets, etc.

[0061] like Figure 1 The cargo-carrying component 2 extends along the L direction, such as Figure 2 The lifting assembly 5 includes a synchronous transmission member 52 and multiple lifting members 51. The multiple lifting members 51 are spaced apart along the L direction. The lifting members 51 are used to lift the load assembly 2. The synchronous transmission member 52 extends along the L direction and is connected to the output gear 42 and the lifting members 51. The power of the output gear 42 is transmitted to the synchronous transmission member 52. The synchronous transmission member 52 enables the multiple lifting members 51 spaced apart along the length direction to lift the load assembly 2 together, forming a multi-point lifting along the length direction, which facilitates stable force distribution during the lifting process.

[0062] like Figure 1 The cargo loading assembly 2 includes two cargo trays 21, which are respectively set at both ends of the vehicle body 1 along the W direction. A set of lifting components 5 is used to lift one cargo tray 21. This arrangement facilitates the loading of goods, reduces the weight of the cargo loading assembly 2, and reduces the space occupied by the cargo loading assembly 2 on the top of the four-way shuttle 1000, which facilitates the structural layout on the four-way shuttle 1000.

[0063] like Figure 2 A lifting assembly 5 includes three lifting members 51. Two lifting members 51 are located at both ends of the vehicle body 1 along the L direction, and the other lifting member 51 is located in the middle of the vehicle body 1 along the L direction, so that the lifting of the cargo platform 21 is stable. In other embodiments, the number and position of the lifting members 51 can be flexibly adjusted according to the load requirements of the four-way shuttle 1000 and the space arrangement requirements of the components.

[0064] like Figure 2 In this embodiment, the synchronous transmission component 52 is a drive shaft, the lifting component 51 is a rack, and the lifting assembly 5 also includes a synchronous gear 53. The tooth profile parameters of the synchronous gear 53 are the same as those of the output gear 42. Both the output gear 42 and the synchronous gear 53 are fixed on the synchronous transmission component 52. Of the three lifting components 51 in the lifting assembly 5, one lifting component 51 meshes with the output gear 42, and the other two lifting components 51 mesh with the synchronous gear 53. The rack lifts the load plate 21. In other embodiments, the lifting component 51 may be, but is not limited to, a rack or a cam.

[0065] like Figure 4 The top of the vehicle body 1 is provided with a downwardly recessed positioning groove 15, and the cargo plate 21 is placed in the positioning groove 15, such as... Figure 3 In this embodiment, there is no connection between the rack and the carrying plate 21. The rack abuts against the carrying plate 21 to lift the carrying plate 21.

[0066] like Figure 2 The transmission assembly 4 is located at one end of the vehicle body 1 along the L direction, which avoids occupying space in other parts of the vehicle body 1 and facilitates the utilization of other spaces in the vehicle body 1. For example... Figure 4 The vehicle body 1 has two first cavities 11 and one second cavity 12 at one end along the L direction. Two transmission components 4 are respectively installed in the two first cavities 11, and the dual output component 6 is installed in the second cavity 12.

[0067] like Figure 5 The four-way shuttle 1000 also includes a reset assembly 7, which includes a guide 71 and an elastic element 72. The guide 71 is mounted on the cargo assembly 2 and extends along the lifting direction of the cargo assembly 2, i.e., along the height direction of the four-way shuttle 1000. The elastic element 72 is telescopically arranged along the guide 71. The elastic element 72 is configured such that when the cargo assembly 2 is lifted relative to the vehicle body 1, the elastic element 72 is compressed, and it can be extended to assist the cargo assembly 2 in descending and resetting. At the same time, the guide 71 is provided to ensure that the cargo assembly 2 remains stable during lifting and lowering, avoiding tilting or jamming. In other embodiments, the reset assembly 7 may not be provided, and the cargo assembly 2 may descend automatically under its own gravity when the rack descends.

[0068] like Figure 5 The guide 71 is fixed below the cargo assembly 2. The guide 71 is provided with a lower limit part 711, and the mounting part 14 of the vehicle body 1 is provided with an upper limit part 141. The elastic member 72 is limited between the lower limit part 711 and the upper limit part 141, which makes it easier to set the height of the vehicle body 1 to be smaller and make the structure compact.

[0069] like Figure 4The upper limit part 141 is provided with a sliding through hole 142, and the guide 71 is slidably inserted in the sliding through hole 142, which can improve the stability of the lifting of the load assembly 2.

[0070] like Figure 1 The four-way shuttle 1000 also includes a traveling assembly and a reversing assembly. The reversing assembly includes two reversing bodies 91, which are respectively disposed at both ends of the vehicle body 1 along the L direction. The traveling assembly is used for the four-way shuttle 1000 to travel. The traveling assembly includes a first wheel set 81 and a second wheel set 82. The first wheel set 81 includes eight first traveling wheels 811 rotatably disposed on the vehicle body 1 for traveling along the L direction. The second wheel set 82 includes four second traveling wheels 821 rotatably disposed on the reversing bodies 91 for traveling along the W direction. The reversing assembly is used to drive the reversing bodies 91 to rise and fall, thereby causing the second traveling wheels 821 to rise and fall, to switch the wheel set used for travel.

[0071] like Figure 2 , Figure 3 One of the transmission gears in the transmission assembly 4 is an idler gear 43. The other gears in the transmission assembly 4 besides the input gear 41, output gear 42, and idler gear 43 are transmission gears 44. The idler gear 43 is located between the input gear 41 and the output gear 42, as shown below. Figure 2 The reversing assembly also includes a synchronous idler wheel 93 and multiple reversing elements 92. Some of the reversing elements 92 are connected to the idler wheel 43, and another part of the reversing body 91 is connected to the synchronous idler wheel 93. The tooth profile parameters of the synchronous idler wheel 93 are the same as those of the idler wheel 43, and the synchronous idler wheel 93 meshes with the synchronous gear 53. The reversing elements 92 are used to drive the reversing body 91 to rise relative to the vehicle body 1, and the lifting element 51 is used to drive the reversing body 91 to descend relative to the vehicle body 1. The drive assembly 3, transmission assembly 4, and lifting assembly 5 are used both to drive the lifting of the cargo assembly 2 and to drive the reversing body 91 to switch the wheel sets, making the four-way shuttle 1000 compact in structure. Figure 4 The vehicle body 1 has two third cavities 13 located at one end away from the first cavity 11 along the L direction. The synchronous idler wheel 93 and the synchronous gear 53 meshing with the synchronous idler wheel 93 are located in the third cavity 13.

[0072] The lifting component 51, the load assembly 2, and the commutator 91 are not connected. When the lifting component 51 rises, it abuts against the load plate 21 to lift the load plate 21. When the lifting component 51 falls, it abuts against the commutator 91 to drive the commutator 91 to fall. Figures 6-9 The illustration shows the lifting member 51 driving the platform 21 to rise and the commutator 91 to fall. In this embodiment, the lifting member 51 has two travel ranges.

[0073] The displacement range of the lifting member 51 in the first stroke interval is [H0, H1]. When the lifting member 51 rises within the first stroke interval, it abuts against the bottom of the carrying plate 21, and the carrying plate 21 is lifted. Figure 6 The diagram illustrates the position of the lifting component 51 at height H1; when the lifting component 51 descends within the first stroke range, the carrying plate 21 descends under its own weight and the action of the elastic element 72. Figure 7 The diagram shows the position where the lifting component 51 descends to height H0. At this point, the cargo plate 21 falls into the positioning groove 15 of the vehicle body 1 and abuts against the bottom surface of the positioning groove 15.

[0074] When the lifting member 51 is in the first stroke range, the first wheel set 81 can move, and the second wheel set 82 is suspended. The displacement range of the lifting member 51 in the second stroke range is [-H2, H0]. When the lifting member 51 descends in the second stroke range, it abuts against the descending action part 911 of the commutator 91, driving the commutator 91 to descend. After the commutator 91 descends by a height of H2, the second wheel set 82 follows the commutator 91 and descends by a height of H2, and can contact the ground or track. At the same time, the vehicle body 1 and the first wheel set 81 are raised relative to the ground or track, and the first wheel set 81 is suspended. At this time, the second wheel set 82 can move. Figure 8 The diagram illustrates the position of the lifting component 51 at a height of -H2. When the lifting component 51 rises within the second stroke range, the idler wheel 43 and the synchronous idler wheel 93 drive the corresponding reversing component 92 to rotate. The upper surface of the reversing component 92 contacts the lifting action part 912 on the reversing body 91. The rotation of the reversing component 92 drives the reversing body 91 and the second wheel set 82 to rise relative to the vehicle body 1, causing the vehicle body 1 and the first wheel set 81 to fall back. When the lifting component 51 rises to a height of H0 within the second stroke range, the first wheel set 81 can contact the ground or the track, the second wheel set 82 and the reversing body 91 are lifted, and the second wheel set 82 is suspended in the air. At this time, the first wheel set 81 can move.

[0075] In this embodiment, the commutator 91 is a cam. The shape of the cam surface can be set according to the stroke setting of the lifting member 51, so that when the lifting member 51 rises within the second stroke range, the cam can drive the commutator 91 to rise, and at other times it will not interfere with the lifting and lowering of the load assembly 2 and the falling of the commutator 91.

[0076] Overall, the four-way shuttle provided by this utility model has the following advantages: it can accurately control the lifting distance, has high space utilization, high efficiency, high flexibility, and high safety.

[0077] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A four-way shuttle vehicle, characterized in that, It includes a vehicle body, a cargo assembly, a drive assembly, and two sets of corresponding transmission assemblies and two sets of lifting assemblies. The drive assembly is disposed between the two sets of transmission assemblies along the width direction of the vehicle body. The two sets of lifting assemblies are respectively disposed at both ends of the width direction of the vehicle body. The transmission assembly includes a plurality of transmission gears meshing sequentially along the width direction. The transmission gears are rotatably mounted on the vehicle body around the length direction of the vehicle body. Two of the transmission gears are an input gear and an output gear. The input gear is disposed in the transmission assembly at one end along the width direction near the drive assembly and is connected to the output end of the drive assembly. The output gear is located at the lifting assembly along the width direction and drives the lifting assembly to lift the cargo assembly relative to the vehicle body.

2. The four-way shuttle as described in claim 1, characterized in that, The four-way shuttle also includes a dual-output assembly, which includes an active component and two driven components mounted on the vehicle body. The active component is driven to the output end of the drive assembly. The two driven components are respectively disposed at both ends of the active component along the width direction and are driven to the active component. The two driven components correspond one-to-one with the input gears in the two sets of the transmission assemblies, and the driven components are driven to the corresponding output gears.

3. The four-way shuttle as described in claim 2, characterized in that, Both the driving member and the driven member are gears rotatably mounted on the vehicle body about the length direction, and the driving member and the driven member mesh with each other; And / or, the drive assembly is located in the middle of the vehicle body in the width direction, and the input gears in the two driven members and / or the two sets of transmission assemblies are symmetrically arranged about the output end of the drive assembly in the width direction; And / or, the dual-output component is a deceleration component.

4. The four-way shuttle as described in claim 2, characterized in that, Both the driving member and the driven member are gears that are rotatably mounted on the vehicle body about the length direction and mesh with each other. The output end of the output component outputs rotational power. The output end is coaxial with the driving member, and the driven member is coaxial with the corresponding input gear.

5. The four-way shuttle as described in claim 1, characterized in that, The load assembly extends along the length direction, and the lifting assembly includes a synchronous transmission member and a plurality of lifting members spaced apart along the length direction for lifting the load assembly. The synchronous transmission member extends along the length direction and is drively connected to the output gear and the lifting members. And / or, the cargo assembly includes two cargo plates respectively disposed at both ends of the vehicle body in the width direction, and a set of the lifting assemblies is used to lift one of the cargo plates.

6. The four-way shuttle as described in claim 5, characterized in that, The synchronous transmission component is a transmission shaft, the lifting component is a rack, and the lifting assembly also includes a synchronous gear with the same tooth profile parameters as the output gear. The output gear and the synchronous gear are fixed on the synchronous transmission component, and one lifting component corresponds to and meshes with one output gear or one synchronous gear. And / or, the transmission assembly is disposed at one end of the vehicle body along its length; And / or, a set of the lifting assemblies includes three lifting members, two of which are located at the two ends of the vehicle body along the length direction, and the other lifting member is located in the middle of the vehicle body along the length direction.

7. The four-way shuttle as described in claim 6, characterized in that, The four-way shuttle also includes: The first wheel assembly is rotatably mounted on the vehicle body for traveling along the length direction; The reversing assembly includes two reversing bodies, which are respectively disposed at both ends of the vehicle body along its length. The second wheel assembly is rotatably mounted on the commutator for traveling along the width direction; One of the transmission gears in the transmission assembly is an idler gear located between the input gear and the output gear. A synchronous idler gear with the same tooth profile parameters as the idler gear meshes on the synchronous gear. The commutation assembly also includes multiple commutation members. A portion of the multiple commutation members is drivenly connected to the idler gear, and another portion is drivenly connected to the synchronous idler gear. The commutation members are used to drive the commutation body to lift relative to the vehicle body, and the lifting members are used to drive the commutation body to descend relative to the vehicle body.

8. The four-way shuttle as described in claim 1, characterized in that, The four-way shuttle also includes a reset assembly, which includes a guide and an elastic member. The guide is mounted on the cargo assembly and extends in the direction of lifting the cargo assembly. The elastic member is telescopically arranged along the guide and is configured such that the elastic member is compressed when the cargo assembly is lifted relative to the vehicle body.

9. The four-way shuttle as described in claim 8, characterized in that, The guide is fixed below the cargo assembly. The guide has a lower limit portion, and the vehicle body has an upper limit portion located above the lower limit portion. The elastic member is limited between the lower limit portion and the upper limit portion.

10. The four-way shuttle as described in claim 9, characterized in that, The upper limit position is provided with a sliding through hole, and the guide member is slidably inserted into the sliding through hole.

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