Shuttle vehicle

Abstract

The invention relates to the technical field of warehouse logistics, in particular to a shuttle vehicle which comprises a vehicle body frame, a jacking structure, a lifting part and a guide structure, and sub-roadway walking wheels are arranged on the vehicle body frame; the jacking structure comprises a jacking driving assembly and a jacking frame, and primary roadway walking wheels are arranged on the jacking frame; the jacking frame is provided with a lower limit position, a middle position and an upper limit position; the jacking frame can drive the lifting piece to ascend and descend when moving between the middle position and the upper limit position. The guide structure comprises a first guide part, a second guide part and a third guide part, the first guide part is distributed in the vertical direction, and the two ends of the first guide part are connected with the vehicle body frame; the second guide piece is arranged on the jacking frame, and the second guide piece is in sliding fit with the outer side face of the first guide piece; the first guide piece is provided with a guide hole, the third guide piece is arranged on the lifting piece, and the third guide piece is in sliding fit with the guide hole. The guide structure is high in integration degree and small in occupied space.

Description

Technical Field

[0001] The present invention relates to the technical field of warehousing logistics, and particularly relates to a shuttle vehicle. Background Art

[0002] Currently, the lifting structures of pallet four-way shuttle vehicles are all divided into two levels of lifting, that is, lifting once when changing directions (switching from the main lane to the sub-lane), and lifting once again when lifting the pallet. Among them, when lifting for direction change, only the height of the running gear system in the main lane changes, making the wheels in the main lane suspended, and the wheels in the sub-lane travel along the sub-lane. At this time, the height of the vehicle body pallet does not change, enabling it to drive under the pallet; when lifting for lifting, the pallet will be lifted upward to lift the pallet. Therefore, in the prior art, the guiding structures for lifting are made into two groups, one for lifting during direction change and the other for lifting during lifting, resulting in a large space occupied by the guiding structure and a low overall integration degree. Summary of the Invention

[0003] The purpose of the present invention is to provide a shuttle vehicle with high integration degree and small occupied space.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] A shuttle vehicle, comprising:

[0006] A vehicle body frame, on which sub-lane running wheels are provided;

[0007] A lifting structure, including a lifting drive assembly and a lifting frame. The lifting drive assembly can drive the lifting frame to move up and down relative to the vehicle body frame. Mother-lane running wheels are provided on the lifting frame; the lifting frame has a lower limit position, an intermediate position, and an upper limit position;

[0008] A lifting member, which is placed at the upper end of the vehicle body frame. When the lifting frame moves between the intermediate position and the upper limit position, it can drive the lifting member to move up and down;

[0009] A guiding structure, including a first guiding member, a second guiding member, and a third guiding member. The first guiding member is distributed along the up and down direction, and both ends of the first guiding member are connected to the vehicle body frame; the second guiding member is arranged on the lifting frame, and the second guiding member is slidably matched with the outer side surface of the first guiding member; the first guiding member has a guiding hole, the third guiding member is arranged on the lifting member, and the third guiding member is slidably matched with the guiding hole.

[0010] As a preferred technical solution of the shuttle vehicle, the first guiding member is a guiding shaft, and the second guiding member is a guiding bushing.

[0011] As a preferred technical solution of the shuttle car, the first guiding member is a spline shaft, and the second guiding member is a spline bushing.

[0012] As a preferred technical solution of the shuttle car, the third guiding member is a guiding optical shaft.

[0013] As a preferred technical solution of the shuttle car, a bushing is arranged in the guiding hole, and the third guiding member is in sliding fit with the bushing.

[0014] As a preferred technical solution of the shuttle car, a bushing gland is arranged at the upper end of the first guiding member, and the bushing gland is used to limit the bushing in the guiding hole.

[0015] As a preferred technical solution of the shuttle car, the axial length of the third guiding member is less than the axial length of the first guiding member.

[0016] As a preferred technical solution of the shuttle car, the number of the guiding structures is four, and the four guiding mechanisms are distributed at the four corner positions of the vehicle body frame.

[0017] As a preferred technical solution of the shuttle car, the number of the lifting members is two, the two lifting members are spaced apart along a first direction, the number of the lifting frames is two, the two lifting frames are spaced apart along a second direction, the second direction is perpendicular to the first direction, and the four guiding structures are correspondingly arranged at the intersection positions of the two lifting members and the two lifting frames.

[0018] As a preferred technical solution of the shuttle car, the lifting member includes a plate body and a reinforcing rib, and the reinforcing rib is arranged at the lower end of the plate body.

[0019] Advantages of the present invention:

[0020] The present invention provides a shuttle car, and its guiding structure includes a first guiding member, a second guiding member and a third guiding member, and the first guiding member, the second guiding member and the third guiding member are nested. The second guiding member is in sliding fit with the first guiding member for guiding when the lifting frame reverses and jacks up. The second guiding member is in sliding fit with the first guiding member, and at the same time the third guiding member is in sliding fit with the first guiding member for guiding when the lifting frame lifts and jacks up. That is, the guiding structure combines the guiding during the reversing and jacking up with the guiding during the lifting and jacking up into one, with high integration and small occupied space. Description of the drawings

[0021] Figure 1 is a schematic structural diagram of the shuttle car provided by an embodiment of the present invention;

[0022] Figure 2 is a schematic structural diagram of the first perspective of the shuttle car provided by an embodiment of the present invention after hiding the top shell;

[0023] Figure 3 is a schematic structural diagram of the jacking structure involved in the embodiment of the present invention;

[0024] Figure 4 is a schematic structural diagram of the jacking frame involved in the embodiment of the present invention;

[0025] Figure 5 is a schematic structural diagram of the second perspective of the shuttle car provided by the embodiment of the present invention after removing the top shell;

[0026] Figure 6 is Figure 5 a partial enlarged view of A in

[0027] Figure 7 is a schematic structural diagram of the third perspective of the shuttle car provided by the embodiment of the present invention after removing the top shell;

[0028] Figure 8 is Figure 7 a partial enlarged view of B in

[0029] Figure 9 is a schematic structural diagram of the shuttle car provided by the embodiment of the present invention after removing the top shell and one lifting member;

[0030] Figure 10 is Figure 9 a partial enlarged view of C in

[0031] Figure 11 is a schematic assembly structural diagram of the first guide member and the second guide member involved in the embodiment of the present invention;

[0032] Figure 12 is Figure 11 a cross-sectional view of

[0033] Figure 13 is a top view of the shuttle car provided by the embodiment of the present invention after removing the top shell;

[0034] Figure 14 is Figure 13 a cross-sectional view along the D-D direction in

[0035] Figure 15 is Figure 14 a partial enlarged view of E in when the jacking frame is at the lower limit position;

[0036] Figure 16 is Figure 14 a partial enlarged view of E in when the jacking frame is at the middle position;

[0037] Figure 17 is Figure 14Local enlarged view of position E when the lifting frame is in the upper limit position;

[0038] Figure 18 is a schematic structural diagram of the lifting structure involved in the embodiment of the present invention when the lifting frame is in the lower limit position;

[0039] Figure 19 is a schematic structural diagram of the shuttle car provided in the embodiment of the present invention when driving in the main roadway;

[0040] Figure 20 is a schematic structural diagram of the lifting structure involved in the embodiment of the present invention when the lifting frame is in the middle position;

[0041] Figure 21 is a schematic structural diagram of the shuttle car provided in the embodiment of the present invention when driving in the sub - roadway;

[0042] Figure 22 is a schematic structural diagram of the lifting structure involved in the embodiment of the present invention when the lifting frame is in the upper limit position;

[0043] Figure 23 is a schematic structural diagram of the shuttle car provided in the embodiment of the present invention when lifting the lifting tray;

[0044] Figure 24 is a schematic structural diagram of the lifting member involved in the embodiment of the present invention.

[0045] In the figure:

[0046] 11. Vehicle body frame; 111. Lower mounting plate; 112. Upper mounting plate; 12. Top shell; 20. Sub - roadway traveling wheels; 31. Lifting drive assembly; 32. Lifting frame; 40. Main - roadway traveling wheels; 50. Lifting member; 51. Plate body; 52. Reinforcing rib; 60. Guiding structure; 61. First guiding member; 611. Guiding hole; 62. Second guiding member; 63. Third guiding member; 71. Bushing; 72. Bushing gland. Detailed implementation manners

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations.

[0048] Accordingly, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0049] It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, it will not be necessary to further define and explain it in subsequent figures.

[0050] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is customarily placed during use. It is only for the convenience of describing the present invention and simplifying the description, and does 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 thus should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0051] In the description of the present invention, it should also be noted that unless otherwise clearly defined and limited, the terms "arranged" 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. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0053] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0054] As Figures 1 to 24 shown, an embodiment of the present invention provides a shuttle car. The transportation track in the storage space includes a main lane and a sub-lane. The main lane intersects with the sub-lane. Multiple sub-lanes are arranged on both sides of a single main lane, and one end of the sub-lane is connected to the main lane. The pallet is placed on the upper surface of the sub-lane, and the goods are stored on the pallet. The shuttle car can travel back and forth on the main lane and the sub-lane to transport the pallet, and thus complete the action of taking out or storing the goods.

[0055] Referring Figures 1 to 12 , the shuttle car includes a vehicle body frame 11, a lifting structure, a lifting member 50, and a guiding structure 60. Among them, two sets of sub-lane traveling wheels 20 are arranged on the vehicle body frame 11, and the two sets of sub-lane traveling wheels 20 are arranged on two side frames of the vehicle body frame 11 distributed along the first direction. The lifting structure includes a lifting drive assembly 31 and a lifting frame 32. The lifting drive assembly 31 can drive the lifting frame 32 to lift and lower relative to the vehicle body frame 11 in the up and down direction, and a main lane traveling wheel 40 is arranged on the lifting frame 32. In this embodiment, the number of the lifting frames 32 is two, and the two lifting frames 32 are spaced apart along the second direction. The second direction is spaced apart from the first direction. One set of main lane traveling wheels 40 is arranged on each lifting frame 32, and the lifting drive assembly 31 can drive the two lifting frames 32 to lift and lower simultaneously in the up and down direction. The lifting frame 32 has a lower limit position, an intermediate position, and an upper limit position. The lifting member 50 is placed at the upper end of the vehicle body frame 11. When the lifting frame 32 moves between the lower limit position and the intermediate limit position, the lifting member 50 does not move. When the lifting frame 32 moves between the intermediate position and the upper limit position, it can drive the lifting member 50 to lift and lower.

[0056] The guiding structure 60 includes a first guiding member 61, a second guiding member 62, and a third guiding member 63. The first guiding member 61 is distributed in the up-and-down direction. The lower end of the first guiding member 61 is fixedly connected to the lower mounting plate 111 of the vehicle body frame 11, and the upper end of the first guiding member 61 is fixedly connected to the upper mounting plate 112 of the vehicle body frame 11. The second guiding member 62 is disposed on the lifting frame 32, and the second guiding member 62 is in sliding fit with the outer side surface of the first guiding member 61. The first guiding member 61 has a guiding hole 611. The third guiding member 63 is disposed on the lifting member 50, and the third guiding member 63 is in sliding fit with the guiding hole 611. That is, the first guiding member 61 is fixed, the second guiding member 62 can move with the lifting frame 32, and is in sliding fit with the outer side surface of the first guiding member 61 to guide the movement of the lifting frame 32. The third guiding member 63 can move with the lifting member 50, and is in sliding fit with the inner side surface of the first guiding member 61 to guide the movement of the lifting member 50.

[0057] In this embodiment, the first guiding member 61 is a guiding shaft, and the second guiding member 62 is a guiding bushing. Preferably, referring to Figure 6 , Figure 8 , Figure 10 and Figure 11 , the first guiding member 61 is a spline shaft, and the second guiding member 62 is a spline bushing, so as to ensure that the movement of the lifting frame 32 is more stable. Referring to Figures 15 to 17 , the third guiding member 63 is a guiding optical shaft. Since the third guiding member 63 only guides the lifting member 50 when the lifting member 50 is lifted, the axial length of the third guiding member 63 is set to be less than the axial length of the first guiding member 61 to avoid material waste. Further, a bushing 71 is disposed in the guiding hole 611, and the third guiding member 63 is in sliding fit with the bushing 71 to avoid abrasion of the first guiding member 61. Further, a bushing gland is disposed at the upper end of the first guiding member 61, and the bushing gland is used to limit the bushing 71 in the guiding hole 611 to prevent the third guiding member 63 from taking out the bushing 71 during the sliding process.

[0058] Referring to Figure 15 , Figure 18 and Figure 19 , when the lifting frame 32 is at the lower limit position, the main roadway traveling wheel 40 is lower than the sub-roadway traveling wheel 20. At this time, the main roadway traveling wheel 40 contacts the main roadway, the sub-roadway traveling wheel 20 is suspended, and the main roadway traveling wheel 40 is driven by the main roadway traveling wheel drive assembly to travel on the main roadway. Referring to Figure 15 and Figure 16 , when the lifting frame 32 moves from the lower limit position to the middle position, the second guiding member 62 is in sliding fit with the first guiding member 61 to guide the movement of the lifting frame 32. Referring to Figure 16 , Figure 20 and Figure 21, when the lifting frame 32 is in the middle position, the main roadway traveling wheels 40 are higher than the sub-roadway traveling wheels 20. At this time, the sub-roadway traveling wheels 20 are in contact with the sub-roadway, and the main roadway traveling wheels 40 are suspended. The sub-roadway traveling wheels 20 are driven by the sub-roadway traveling wheel drive assembly to travel on the sub-roadway, and at this time, the lifting frame 32 just contacts or is about to contact the lifting member 50. Refer to Figure 16 and Figure 17 , during the process of the lifting frame 32 moving from the middle position to the upper limit position, the second guiding member 62 and the first guiding member 61 are in sliding fit to guide the movement of the lifting frame 32, and at the same time, the third guiding member 63 and the first guiding member 61 are in sliding fit to guide the movement of the lifting member 50. Refer to Figure 17 、 Figure 22 and Figure 23 , when the lifting frame 32 is in the upper limit position, the main roadway traveling wheels 40 are higher than the sub-roadway traveling wheels 20. At this time, it is still the sub-roadway traveling wheels 20 that are in contact with the sub-roadway, and the main roadway traveling wheels 40 are suspended. The shuttle car is located directly below the tray, and at this time, the lifting frame 32 jacks up the lifting member 50, and the lifting member 50 lifts the tray. The lifting drive assembly 31, the main roadway traveling wheel drive assembly, and the sub-roadway traveling wheel drive assembly involved in this embodiment are all prior arts, and their specific structures will not be elaborated here.

[0059] The guiding structure 60 involved in this embodiment includes a first guiding member 61, a second guiding member 62, and a third guiding member 63, and the first guiding member 61, the second guiding member 62, and the third guiding member 63 are nested. The second guiding member 62 and the first guiding member 61 are in sliding fit for guiding when the lifting frame 32 changes direction and jacks up. The second guiding member 62 and the first guiding member 61 are in sliding fit, and at the same time, the third guiding member 63 and the first guiding member 61 are in sliding fit for guiding when the lifting frame 32 lifts and supports. That is, the guiding structure 60 combines the guiding during the direction-changing jacking and the guiding during the lifting and supporting into one, with high integration and small occupied space.

[0060] In this embodiment, the number of the guiding structures 60 is four, and the four guiding structures 60 are distributed at the four corner positions of the vehicle body frame 11. Through the uniform distribution of the guiding structures 60, the movement of the lifting frame 32 is more stable.

[0061] In this embodiment, the number of the lifting members 50 is two, and the two lifting members 50 are spaced apart along the first direction. Each lifting member 50 is jointly lifted by two lifting frames 32, and the four guiding structures 60 are correspondingly arranged at the positions where the two lifting members 50 intersect with the two lifting frames 32, and the structure distribution is more reasonable.

[0062] Refer to Figure 24, in this embodiment, the lifting member 50 includes a plate body 51 and reinforcing ribs 52, and the reinforcing ribs 52 are arranged at the lower end of the plate body 51. In this embodiment, the number of the reinforcing ribs 52 is multiple, and the multiple reinforcing ribs 52 are arranged vertically and horizontally in a crisscross manner. Through the above structural arrangement, the strength of the lifting member 50 is improved.

[0063] Referring to Figure 1 , in this embodiment, the upper end of the vehicle body frame 11 is further covered with a top shell 12 to cover the jacking drive assembly 31, the main roadway traveling wheel drive assembly, and the sub-roadway traveling wheel drive assembly inside the vehicle body frame 11, so as to protect the jacking drive assembly 31, the main roadway traveling wheel drive assembly, and the sub-roadway traveling wheel drive assembly.

[0064] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A shuttle car, characterized in that, Comprising: A vehicle body frame (11) provided with sub - roadway running wheels (20) thereon; A lifting structure, including a lifting drive assembly (31) and a lifting frame (32), the lifting drive assembly (31) being capable of driving the lifting frame (32) to move up and down relative to the vehicle body frame (11), and the lifting frame (32) being provided with main - roadway running wheels (40); the lifting frame (32) has a lower limit position, an intermediate position, and an upper limit position; A lifting member (50) placed at the upper end of the vehicle body frame (11), and the lifting frame (32) can drive the lifting member (50) to lift when moving between the intermediate position and the upper limit position; A guiding structure (60), including a first guiding member (61), a second guiding member (62), and a third guiding member (63), the first guiding member (61) is distributed in the up - and - down direction, and both ends of the first guiding member (61) are connected to the vehicle body frame (11); the second guiding member (62) is arranged on the lifting frame (32), and the second guiding member (62) is in sliding fit with the outer side surface of the first guiding member (61); the first guiding member (61) has a guiding hole (611), the third guiding member (63) is arranged on the lifting member (50), and the third guiding member (63) is in sliding fit with the guiding hole (611).

2. The shuttle car according to claim 1, characterized in that, The first guiding member (61) is a guiding shaft, and the second guiding member (62) is a guiding shaft sleeve.

3. The shuttle car according to claim 2, wherein, The first guiding member (61) is a spline shaft, and the second guiding member (62) is a spline shaft sleeve.

4. The shuttle car according to claim 1, characterized in that, The third guiding member (63) is a guiding optical shaft.

5. The shuttle car according to claim 4, characterized in that, A bushing (71) is arranged in the guiding hole (611), and the third guiding member (63) is in sliding fit with the bushing (71).

6. The shuttle car according to claim 5, wherein, A bushing gland (72) is arranged at the upper end of the first guiding member (61), and the bushing gland (72) is used to limit the bushing (71) in the guiding hole (611).

7. The shuttle car according to claim 4, characterized in that, The axial length of the third guiding member (63) is less than the axial length of the first guiding member (61).

8. The shuttle car according to claim 1, characterized in that, The number of the guiding structures (60) is four, and the four guiding structures (60) are distributed at the four corner positions of the vehicle body frame (11).

9. The shuttle car according to claim 8, wherein, The number of the lifting members (50) is two, the two lifting members (50) are spaced apart along a first direction, the number of the lifting frames (32) is two, the two lifting frames (32) are spaced apart along a second direction, the second direction is perpendicular to the first direction, and the four guiding structures (60) are correspondingly arranged at the positions where the two lifting members (50) intersect with the two lifting frames (32).

10. The shuttle car according to claim 1, wherein, The lifting member (50) includes a plate body (51) and a reinforcing rib (52), and the reinforcing rib (52) is arranged at the lower end of the plate body (51).

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