Heavy load transfer cart structure

Abstract

The utility model belongs to the field of logistics transfer technology especially relates to heavy load transfer trolley structure, including base, fixed frame, guide piece, lifting seat and hydraulic telescopic cylinder, be equipped with the roller for supporting and spacing on the track and be used for driving the drive mechanism of rotation of roller on the base, fixed frame is located one side of base, the fixed frame includes roof beam, at least two groups guide piece is located between base and roof beam, the upper end of guide piece is connected roof beam, lower end connects base, lifting seat connects guide piece, and only extends the up and down motion of guide piece, one side of lifting seat extends a plurality of cantilever, and cantilever is located base top side, base is when walking on the track, cantilever is located the top layer or bottom side of goods shelf, hydraulic telescopic cylinder connects lifting seat, hydraulic telescopic cylinder is used for pushing lifting seat along guide piece elevating.

Description

Technical Field

[0001] This utility model relates to the field of logistics transfer technology, and in particular to a heavy-duty transfer vehicle structure. Background Technology

[0002] In logistics, warehousing, and smart warehouses, material handling vehicles are used to transfer goods; for example, AGVs, RGVs, and forklifts are used for handling and transferring goods. AGVs are generally used for handling and transferring small, lightweight goods, but are not suitable for handling and transferring heavy items. Forklifts are generally used for handling larger and heavier goods, but forklifts require more operating space and a driver.

[0003] RGVs travel on tracks on the ground and can be used to move both heavy and light goods, achieving versatility. For example, Chinese invention patent application CN105217203A discloses a storage system for composite insulators that utilizes a forklift (RGV) to move goods. Specifically, it includes: a cantilever storage rack with multiple rack bodies arranged side-by-side at intervals, each rack body comprising a base, uprights mounted on the base, and multiple cantilever arms distributed on the front and / or rear sides of the uprights and arranged vertically at intervals along the uprights; an insulator storage cage comprising a bottom pallet, side doors, and latches; wherein the bottom pallet and side doors are rectangular frames formed by fixed connections of profiles, the width of the bottom pallet matching the cantilever length of the cantilever rack, the bottom surface of the bottom pallet having support for a forklift insertion port, and positioning plates on the left and right sides of the bottom pallet; the width of the side doors matching the cantilever spacing of the cantilever rack, and the length of the bottom pallet and side doors being determined according to the length of the stored long materials; a side door is connected to each of the two edges of the bottom pallet by hinges, and latches are installed on the uprights constituting the side doors at positions corresponding to the hinges, using the latches to support the side doors on both sides of the bottom pallet; and a cage handling device, which is a forklift structure comprising four forks arranged side-by-side at intervals.

[0004] In the aforementioned patent documents, the forks employ a telescopic structure to facilitate cargo handling, utilizing the telescopic function to pick up and place goods. However, in this particular solution, the rack uses a cantilever structure, while the forklift uses a fork structure. Using a telescopic method to pick up and place goods not only results in low efficiency but also makes the forklift's structure more complex. Furthermore, the lateral telescopic structure cannot support heavy loads during transport. Utility Model Content

[0005] The purpose of this utility model is to provide a heavy-duty transfer vehicle structure, which solves the technical problems of existing RGVs used for transferring goods on cantilever racks, which utilize lateral telescopic structures, have complex structures, low loading and unloading efficiency, and are unable to carry heavy objects.

[0006] To achieve the above objectives, this utility model provides a heavy-duty transfer vehicle structure that travels along a track set on the ground for transporting heavy-duty goods. It includes a base, a fixed frame, guide members, a lifting seat, and a hydraulic telescopic cylinder. The base is equipped with rollers for supporting and limiting their position on the track and a drive mechanism for driving the rollers to rotate. The fixed frame is located on one side of the base and includes a top beam. At least two sets of guide members are located between the base and the top beam, with the upper end of each guide member connected to the top beam and the lower end connected to the base. The lifting seat is connected to the guide members and extends only the guide members for vertical movement. Multiple cantilever arms extend from one side of the lifting seat, and these cantilever arms are located on the top side of the base. The hydraulic telescopic cylinder is connected to the lifting seat and is used to push the lifting seat up and down along the guide members.

[0007] Furthermore, the free end face of the cantilever is flush with the side wall of the base.

[0008] Furthermore, the lifting seat is provided with a guide through hole that fits onto the guide member.

[0009] Furthermore, the lifting seat is provided with limiting guide wheel assemblies on both the top and bottom sides, and the limiting guide wheel assemblies are located at the opening of the guide through hole; the limiting guide wheel assemblies include a mounting seat and limiting pulleys at both ends of the mounting seat, and the guide member passes through the guide channel formed by the two limiting pulleys.

[0010] Furthermore, the hydraulic telescopic cylinder includes a telescopic end, and the telescopic end is located at the upper end of the hydraulic telescopic cylinder; the telescopic end is provided with a support pulley, the support pulley is connected to a flexible element, one end of the flexible element is fixedly connected to the base, and the other end is connected to the lifting seat.

[0011] Furthermore, the lifting seat has a connecting part on the side near the cantilever, and the flexible member is connected to the connecting part.

[0012] Furthermore, there are two sets of hydraulic telescopic cylinders, which are connected to both ends of the lifting seat.

[0013] Furthermore, the lifting seat includes a base plate, a top plate, and a support member connecting the top plate and the base plate.

[0014] Furthermore, the cantilever is located on one side of the bottom end of the lifting seat, and the hydraulic telescopic cylinder is connected to the bottom end of the lifting seat.

[0015] Furthermore, the lower end of the lifting seat is provided with a mounting through hole, and one end of the cantilever extends into the mounting through hole.

[0016] The above-mentioned one or more technical solutions in the heavy-duty transfer vehicle structure provided by this utility model embodiment have at least the following technical effects: 1. When this heavy-duty transfer vehicle travels on the track, the cantilever is located at the top or bottom of the rack. When goods are placed on the rack, the cantilever travels at the top of the rack support arm. The hydraulic telescopic cylinder drives the lifting seat to descend, allowing the goods to fall onto the rack support arm. When retrieving goods, the cantilever is located at the bottom of the rack support arm, and the hydraulic telescopic cylinder drives the lifting seat to rise, lifting the goods on the support arm to a certain height before moving along the track to remove the goods from the rack. Because the hydraulic telescopic cylinder enables the lifting seat to move vertically up and down without lateral extension, it can carry heavier goods, achieving heavy-duty handling, and the vertical movement improves the efficiency of goods handling. In addition, this heavy-duty transfer vehicle does not have a lateral extension structure, making the overall structure simpler.

[0017] 2. The cantilever of this heavy-duty transfer vehicle is located at the top of the base. When the cantilever supports the goods, the center of gravity is located above the base, making the heavy-duty transfer vehicle more stable and avoiding problems such as tipping over. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural diagram of the lifting seat of the heavy-duty transfer vehicle in the raised state, as provided in an embodiment of this utility model.

[0020] Figure 2 This is a structural diagram of the lifting seat of the heavy-duty transfer vehicle in the lowered state, as provided in an embodiment of the present invention.

[0021] Figure 3 This is a structural diagram of the lifting seat of the heavy-duty transfer vehicle provided in the embodiment of this utility model. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein 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 with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0023] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0026] In one embodiment of the heavy-duty transfer vehicle of this utility model, please refer to... Figure 1 and Figure 2 The heavy-duty transfer vehicle of this embodiment travels along a track set on the ground for transporting heavy-duty goods. Specifically, the heavy-duty transfer vehicle includes a base 100, a fixed frame 200, guide members 300, a lifting seat 400, and a hydraulic telescopic cylinder 500. The base 100 is provided with rollers 101 for supporting and limiting them on the track and a drive mechanism 102 for driving the rollers 101 to rotate. The fixed frame 200 is located on one side of the base 100 and includes a top beam 210. At least two sets of guide members 300 are located between the base 100 and the top beam 210, with the upper end of the guide member 300 connected to the top beam 210 and the lower end connected to the base 100. The lifting seat 400 is connected to the guide members 300 and only extends the guide members 300 to move up and down. Multiple cantilever arms 410 extend from one side of the lifting seat 400 and are located on the top side of the base 100. The hydraulic telescopic cylinder 500 is connected to the lifting seat 400, and the hydraulic telescopic cylinder 500 is used to push the lifting seat 400 up and down along the guide member 300.

[0027] In this embodiment, when the heavy-duty transfer vehicle travels on the track, the cantilever 410 is located at the top or bottom of the shelf. When goods are placed on the shelf, the cantilever 410 travels at the top of the shelf support arm, and the hydraulic telescopic cylinder 500 drives the lifting seat 400 to descend, allowing the goods to fall onto the shelf support arm. When retrieving goods, the cantilever 410 is located at the bottom of the shelf support arm, and the hydraulic telescopic cylinder 500 drives the lifting seat 400 to rise, lifting the goods on the support arm to a certain height before moving along the track to remove the goods from the shelf. Because the hydraulic telescopic cylinder 500 enables the lifting seat 400 to move vertically up and down without lateral extension, it can carry heavier goods, achieving heavy-duty handling, and the vertical movement improves the efficiency of goods handling. In addition, this heavy-duty transfer vehicle does not have a lateral extension structure, making the overall structure simpler. Furthermore, the cantilever 410 of the heavy-duty transfer vehicle is located at the top of the base 100. When the cantilever 410 supports the goods, the center of gravity is located above the base 100, making the heavy-duty transfer vehicle more stable and avoiding problems such as tipping over.

[0028] Furthermore, the free end face of the cantilever 410 is flush with the side wall of the base 100. In this embodiment, the cantilever 410 does not extend beyond the outline of the base 100. Therefore, when the cantilever 410 supports a heavy object, it ensures that the center of gravity of the heavy object is above the base 100, preventing tilting. Moreover, the flushness of the free end face of the cantilever 410 with the side wall of the base 100 also prevents the width of the heavy-duty transport vehicle from becoming too wide, thus avoiding an increase in the width of the shelves and shelf components, and better saving warehouse space.

[0029] Furthermore, refer to Figures 1 to 3 The lifting seat 400 is provided with a guide through hole 410 that fits onto the guide member 300. In this embodiment, by providing a guide through hole 410 on the lifting seat 400, and by fitting the guide through hole 410 onto the guide member 300, the guide member 300 can bear the overall force and the problem of the lifting seat 400 and the guide member 300 disengaging can be avoided.

[0030] Furthermore, refer to Figures 1 to 3 The lifting seat 400 is equipped with limiting guide wheel assemblies 600 on both its top and bottom sides, with the two sets of limiting guide wheel assemblies 600 located at the two openings of the guide through hole 401. The two limiting guide wheel assemblies 600 connect to and limit the guide member 300, ensuring smoother lifting and lowering of the guide member 300 and preventing wear on the guide member 300 and the lifting seat 400. Furthermore, the limiting guide wheel assemblies 600 can be replaced without replacing the lifting seat 400. Moreover, the limiting guide wheel assemblies 600 on the top and bottom sides of the lifting seat 400 provide support from the guide member 300, resulting in more stable force distribution during lifting and lowering of the lifting seat 400.

[0031] Specifically, the limiting guide wheel assembly 600 includes a mounting base 610 and limiting pulleys 620 set at both ends of the mounting base 610, and the guide member 300 passes through the guide channel formed by the two limiting pulleys 620.

[0032] Furthermore, refer to Figures 1 to 3 The hydraulic telescopic cylinder 500 includes a telescopic end 501, which is located at the upper end of the cylinder. The telescopic end 501 is equipped with a support pulley 510, which is connected to a flexible element 520. One end of the flexible element 520 is fixedly connected to the base 100, and the other end is connected to the lifting seat 400. In this embodiment, the hydraulic telescopic cylinder 500 pushes the support pulley 510 upward. As the support pulley 510 rolls, the flexible element 520, connected to the lifting seat 400, moves upward, causing the lifting seat 400 to move upward. By using the flexible element 520 to pull the lifting seat 400 up and down, the stroke of the lifting seat 400 can be increased. Preferably, the support pulley 510 can be a sprocket, and the flexible element 520 can be a chain.

[0033] Furthermore, referring to Figures 1 to 3 The lifting seat 400 has a connecting part 402 on the side near the cantilever 410, and the flexible member 520 is connected to the connecting part 402. In this embodiment, the force exerted by the hydraulic telescopic cylinder 500 on the lifting seat 400 is located on the side of the lifting seat 400 near the cantilever 410. When the cantilever 410 is carrying a heavy object, the flexible member 520 suspends the heavy object relative to the direct action of the hydraulic telescopic cylinder 500, effectively preventing the guide member 300 from being subjected to a large tilting force, and thus preventing the side of the guide member 300 away from the cantilever from being subjected to a large gravitational force.

[0034] Furthermore, referring to Figures 1 to 3 The cantilever 410 is located on one side of the bottom end of the lifting seat 400, and the hydraulic telescopic cylinder 500 is connected to the bottom end of the lifting seat 400. By making the force of the telescopic hydraulic cylinder 500 on the lifting seat 400 closer to the cantilever, the force of the lifting seat 400 on the guide member 300 can be reduced, thereby reducing resistance and problems such as deformation of the guide member 300.

[0035] Furthermore, there are two sets of hydraulic telescopic cylinders 500, which are connected to both ends of the lifting seat 400.

[0036] Furthermore, refer to Figures 1 to 3 The lifting seat 400 includes a base plate 420, a top plate 430, and a support member 440 connecting the top plate 430 and the base plate 420. Furthermore, a guide hole 401 extends through the top plate 430, the support member 440, and the base plate 420. Even further, the base plate 420, the top plate 430, and the support member 440 are all square tubing.

[0037] Furthermore, refer to Figures 1 to 3The lower end of the lifting seat 400 is provided with a mounting through hole, and one end of the cantilever 410 extends into the mounting through hole. This can increase the connection strength of the cantilever 410 and the lifting seat 400 and the stability of the installation.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heavy-duty transfer vehicle structure that travels along tracks set on the ground for transporting heavy-duty goods; characterized in that, The device includes a base, a fixed frame, guide members, a lifting seat, and a hydraulic telescopic cylinder. The base is equipped with rollers for supporting and limiting their position on the track, and a drive mechanism for rotating the rollers. The fixed frame is located on one side of the base and includes a top beam. At least two sets of guide members are located between the base and the top beam, with the upper end of each guide member connected to the top beam and the lower end connected to the base. The lifting seat is connected to the guide members and extends only the guide members for vertical movement. Multiple cantilever arms extend from one side of the lifting seat, and these cantilever arms are located on the top side of the base. When the base moves along the track, the cantilever arms are located at the top or bottom of the shelf. The hydraulic telescopic cylinder is connected to the lifting seat and is used to push the lifting seat up and down along the guide members.

2. The heavy-duty transfer vehicle structure according to claim 1, characterized in that: The free end face of the cantilever is flush with the side wall of the base.

3. The heavy-duty transfer vehicle structure according to claim 1, characterized in that: The lifting seat is provided with a guide through hole that fits onto the guide member.

4. The heavy-duty transfer vehicle structure according to claim 3, characterized in that: The lifting seat is provided with limiting guide wheel assemblies on both the top and bottom sides, and the limiting guide wheel assemblies are located at the opening of the guide through hole; the limiting guide wheel assemblies include a mounting seat and limiting pulleys at both ends of the mounting seat, and the guide member passes through the guide channel formed by the two limiting pulleys.

5. The heavy-duty transfer vehicle structure according to any one of claims 1 to 4, characterized in that: The hydraulic telescopic cylinder includes a telescopic end, which is located at the upper end of the hydraulic telescopic cylinder; the telescopic end is provided with a support pulley, the support pulley is connected to a flexible component, one end of the flexible component is fixedly connected to the base, and the other end is connected to the lifting seat.

6. The heavy-duty transfer vehicle structure according to claim 5, characterized in that: The lifting seat has a connecting part on the side near the cantilever, and the flexible member is connected to the connecting part.

7. The heavy-duty transfer vehicle structure according to claim 6, characterized in that: The hydraulic telescopic cylinder consists of two sets, which are connected to both ends of the lifting seat.

8. The heavy-duty transfer vehicle structure according to any one of claims 1 to 4, characterized in that: The lifting seat includes a base plate, a top plate, and a support member connecting the top plate and the base plate.

9. The heavy-duty transfer vehicle structure according to any one of claims 1 to 4, characterized in that: The cantilever is located on one side of the bottom end of the lifting seat, and the hydraulic telescopic cylinder is connected to the bottom end of the lifting seat.

10. The heavy-duty transfer vehicle structure according to claim 9, characterized in that: The lower end of the lifting seat is provided with a mounting through hole, and one end of the cantilever extends into the mounting through hole.

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