Lifting mechanism and storage vehicle

Abstract

The lifting mechanism comprises a lifting platform driven by a lead screw transmission component to ascend and descend and a guide column component, the guide column component comprises a plurality of vertical guide rods, rod bodies of the guide rods are connected with a plurality of round holes correspondingly formed in the lifting platform in a matched mode through linear bearings, and the lifting platform is guided and supported. According to the utility model, through the guiding of the guide rod, the stability of the lifting platform moving up and down is enhanced; transmission is conducted through the servo motor and the lead screw mechanism, the lifting positioning precision is high, and transmission is stable; the whole structure is open and is convenient to use and maintain; the device has the advantages of detachability and strong transportability.

Description

Technical Field

[0001] The utility model relates to the field of logistics and storage machinery, in particular to a lifting mechanism and a storage vehicle in the field of intelligent logistics. Background Art

[0002] Transfer carts are widely used in intelligent logistics systems to transport goods between warehouses, with the lifting mechanism being their primary load-carrying mechanism. Existing motor-driven lifting mechanisms suffer from inaccurate up-and-down movement of the lifting platform and unstable edge movement. Deformation of the edges can affect lifting, material positioning, and the gripping accuracy of the gripping mechanism, reducing logistics efficiency. Furthermore, the transfer cart often needs to be replaced, and the existing lifting mechanism is difficult to disassemble and replace, making maintenance difficult.

[0003] Most of the existing lifting mechanisms are difficult to meet the above technical requirements at the same time, so it is necessary to design a new type of lifting mechanism and transplanting vehicle. Summary of the Invention

[0004] The utility model aims to solve the existing problems and provides a lifting mechanism and a storage vehicle with a simple structure, safe use and convenience, which can maintain high stability when lifting goods and has the characteristics of easy disassembly and assembly and easy maintenance.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model includes a lifting platform driven by a screw transmission component and a guide column component. The guide column component includes several vertical guide rods. The rod body of the guide rod is connected to several corresponding circular holes on the lifting platform through linear bearings, which play a guiding and supporting role on the lifting platform.

[0006] The guide column component further includes a top frame, and the top ends of the plurality of guide rods are connected via the top frame.

[0007] Among them, several round rods of the top frame are fixedly connected by a tee piece.

[0008] The bottom ends of the guide rods are connected to the chassis component through a base.

[0009] The screw transmission components include a screw, a servo motor, a reducer, and a coupling. The servo motor's rotation is transmitted to the reducer, which is then connected to the screw via the coupling. The rotatable screw is movably connected to the lifting platform via a nut pair. The lifting platform is connected to the screw via the nut pair. The rotation of the screw drives the nut pair, which in turn drives the lifting platform.

[0010] It also includes a column frame, including a top plate and a bottom plate, and a column connecting the two; the lower end of the screw is rotatably connected to the bottom plate through a lower bearing for support, and the upper end of the screw is rotatably connected to the top plate through an upper bearing for fixation.

[0011] The utility model also includes a chassis formed by connecting two cross beams and a plurality of longitudinal beams, and a screw transmission component and a guide column component are connected to the chassis through bolts.

[0012] The present invention also provides a storage vehicle (transplanter) comprising any of the aforementioned lifting mechanisms; further comprising running wheels fixed to axles rotatably connected to a chassis via bearings. Compared to the prior art, the present invention enhances the stability of the lifting platform's up-and-down movement through the guidance of guide rods; the servo motor and lead screw mechanism provide transmission, resulting in high positioning accuracy and stable transmission; the overall structure is open, easy to use and maintain; and the vehicle is detachable and highly portable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0014] Figure 2 A cross-sectional view of an embodiment of the present utility model;

[0015] Figure 3 It is a structural diagram of the screw transmission component;

[0016] Figure 4 It is a structural diagram of the guide column component;

[0017] Figure 5 It is a structural diagram of the transplanting vehicle;

[0018] Referring to the accompanying drawings, there are screw transmission components 1, servo motor 2, lifting platform component 3, guide column component 4, chassis 5, screw 6, column frame 7, reducer 8, nut pair 9, coupling 10, linear bearing 11, lifting platform 12, guide rod 13, base 14, top frame 15, cross beam 16, longitudinal beam 17, connecting plate 18, round rod 21, and tee piece 22. DETAILED DESCRIPTION

[0019] The present invention will now be further described with reference to the accompanying drawings.

[0020] See also Figures 1 to 4 , Figures 1 to 4 The embodiment of the present invention is shown in FIG. 1 , which mainly includes a screw transmission component 1, a lifting platform component 3, a guide column component 4 and a chassis 5. Figure 1 、 Figure 2The screw transmission component 1 consists of a screw 6, a servo motor 2, a reducer 8 and a coupling 10. The circumferential rotation of the screw 6 is transmitted to the reducer 8 by controlling the rotation of the servo motor 2, and the reducer 8 is then fixedly connected to the upper end of the screw 6 through the coupling 10.

[0021] Further, see Figure 3 The machine is also equipped with a column frame 7, comprising a top plate and a bottom plate, with two columns forming a frame between them. A lead screw 6 is located in the space between the columns, its lower end rotatably connected to the bottom plate via a lower bearing 20. The upper end of the lead screw 6 is rotatably connected to the top plate via an upper bearing 19. The upper bearing 19 provides a fixed position, while the lower bearing 20 provides support. The open frame structure also facilitates maintenance and repair of the equipment.

[0022] Preferably, the column frame 7 is welded from standard steel to ensure structural stability and strength. The top plate and the bottom plate are preferably provided with bearing supports to ensure that the upper bearing 19 and the lower bearing 20 have an adjustment margin during installation. Figure 2 The lifting platform component 3 is composed of a lifting platform 12, a nut pair 9 and a linear bearing 11. One side of the lifting platform 12 is movably connected to the screw 6 through the nut pair 9. The rotation of the screw 6 drives the nut pair 9 to move up and down, and then drives the lifting platform 12 to move up and down. That is, the lifting and lowering of the lifting platform 12 can be achieved by controlling the forward and reverse rotation of the servo motor 2.

[0023] Preferably, the lifting platform 12 is machined from a plate to ensure its load-bearing capacity, and the flat plate shape can also load materials of various structural types (such as cylindrical, long strips, and irregular geometric shapes).

[0024] See also Figure 1 The guide column component 4 consists of four vertical guide rods 13, four corresponding bases 14, and a top frame 15. The guide rods 13 are slidably connected to the lifting platform 12 through linear bearings 11 in the circular holes at the four corners of the lifting platform. The guide rods 13 play a guiding and supporting role for the lifting platform.

[0025] As a preference, see Figure 4 , and also includes a top frame 15. The top frame 15 includes four round rods 21, which are fixedly connected by tees 22 to form another frame. The four guide rods 13 are connected to the top frame 15 / tees 22 by threads, which facilitates disassembly and assembly. The top frame 15 ensures the stability of the guide rods 13 structure, thereby ensuring that the lifting platform 12 has good guidance and stability during the lifting process. The chassis 5 is welded together by two cross beams 16 and four longitudinal beams 17. The bottom plate of the screw transmission component 1 and the base at the lower end of the guide rods 13 are respectively connected to the chassis 5 by bolts.

[0026] See also Figure 5 The lower end of the chassis 5 can also be fixedly connected to the bearing mounting seat via a connecting plate 18. The bearing is rotatably connected to the wheel axle of the running wheel. After the two pairs of running wheels are rotatably connected to the chassis 5, a warehouse transplanter is formed. This transplanter is equipped with the lifting mechanism of the above embodiment, and its scheme and effect are the same, so it will not be repeated here.

[0027] The above describes the implementation mode of the present invention in conjunction with the drawings and embodiments. The structure given in the embodiments does not constitute a limitation of the present invention. Those skilled in the art can make adjustments as needed. Various deformations or modifications made within the scope of the attached claims are within the scope of protection.

Claims

1. A lifting mechanism for a storage vehicle, characterized in that: It includes a lifting platform driven by a screw transmission component and a guide column component. The guide column component includes a plurality of vertical guide rods. The rod bodies of the guide rods are connected to a plurality of corresponding circular holes on the lifting platform through linear bearings.

2. The lifting mechanism of a storage vehicle according to claim 1, characterized in that: The guide column component also includes a top frame, and the top ends of the plurality of guide rods are connected through the top frame.

3. The lifting mechanism of a storage vehicle according to claim 2, characterized in that: A plurality of round bars of the top frame are fixedly connected by three-way pieces.

4. The lifting mechanism of a storage vehicle according to claim 1, characterized in that: The bottom ends of the plurality of guide rods are connected with the chassis component through a base.

5. The lifting mechanism of a storage vehicle according to claim 1, characterized in that: The screw transmission component includes a screw, a servo motor, a reducer and a coupling. The rotation of the servo motor is transmitted to the reducer, and the reducer is connected to the screw through the coupling; the circumferentially rotatable screw forms a movably connected to the lifting platform through a nut pair.

6. The lifting mechanism of a storage vehicle according to claim 1, characterized in that: It also includes a column frame, including a top plate and a bottom plate, and a column connecting the two; the lower end of the lead screw is rotatably connected to the bottom plate through a lower bearing for support, and the upper end of the lead screw is rotatably connected to the top plate through an upper bearing for fixation.

7. The lifting mechanism of a storage vehicle according to claim 1, characterized in that: The utility model also comprises a chassis which is formed by connecting two cross beams and a plurality of longitudinal beams, and a lead screw transmission component and a guide column component are connected to the chassis.

8. A storage vehicle, characterized in that: It comprises the lifting mechanism described in any one of claims 1 to 7; a plurality of running wheels are arranged at the lower end of the chassis.

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