Directional wheel lifting device for AGV (Automatic Guided Vehicle)

Abstract

The utility model relates to the technical field of AGVs, and discloses an AGV directional wheel lifting device which comprises a supporting transverse plate, the bottom of the supporting transverse plate is fixedly connected with a fixing frame, the interior of the fixing frame is rotationally connected with moving wheels, the interior of the supporting transverse plate is in threaded connection with a connecting sliding rod, and the connecting sliding rod is in threaded connection with the bottom of the supporting transverse plate. The upper surface of the connecting sliding rod is fixedly connected with a limiting top plate. The top of the supporting transverse plate is fixedly connected with a spring. The spring and the air cylinder jointly act on the connecting top plate, the air cylinder can accurately provide upward or downward power according to needs to achieve lifting of the directional wheel, the spring plays a role in auxiliary buffering and supporting, and when the air cylinder pushes the connecting top plate to ascend, the spring is compressed to store energy; when the air cylinder stops working or breaks down, the spring releases energy, the height of the directional wheel can be maintained to a certain degree, the directional wheel is prevented from falling suddenly, and the reliability and stability of the lifting device are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to AGV dolly technical field especially, relates to a kind of AGV dolly directional wheel lifting device. BACKGROUND

[0002] The directional wheel lifting function of AGV dolly is a function that AGV dolly can be freely lifted between ground and preset height by integrated lifting unit. This design not only simplifies the system, improves work efficiency, but also enhances the stability and reliability of the system. The directional wheel lifting function of AGV dolly is mainly realized by built-in hydraulic system or electric lifting system. AGV dolly can accurately lift goods from ground to the required height through hydraulic system or electric lifting system. This height can be adjusted according to the requirements of goods shelves or storage locations to adapt to various warehouse scenarios.

[0003] The existing AGV dolly directional wheel lifting device is prone to instability when the equipment adjusts the position and height of the wheels, affecting the stability during position and height adjustment and the convenience during operation. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the utility model provides an AGV dolly directional wheel lifting device.

[0005] The utility model adopts the following technical scheme: an AGV dolly directional wheel lifting device, comprising a support horizontal plate, a fixed frame is fixedly connected to the bottom of the support horizontal plate, a moving wheel is rotatably connected in the fixed frame, a connecting slide rod is screwedly connected in the support horizontal plate, a limiting top plate is fixedly connected to the upper surface of the connecting slide rod;

[0006] A spring is fixedly connected to the top of the support horizontal plate, an installation clamping frame is fixedly connected to the top of the support horizontal plate, a gas cylinder is clamped in the installation clamping frame, a fixed clamping frame is clamped to the surface of the gas cylinder, an installation support rod is fixedly connected to the surface of the fixed clamping frame, a connecting clamping frame is slidably connected to the surface of the installation support rod, and a connecting top plate is fixedly connected to the top of the connecting clamping frame.

[0007] Through the above technical scheme, the connecting top plate is slidably connected to the surface of the connecting slide rod. The connecting slide rod provides a guiding effect for the lifting of the connecting top plate, ensuring that the connecting top plate maintains vertical movement during lifting, avoiding tilting or shaking. This precise guidance helps to improve the accuracy of directional wheel lifting, so that the directional wheel can be accurately adjusted to the appropriate height to adapt to different working scenarios, such as crossing obstacles or running on different height working planes.

[0008] As a further improvement of the above scheme, the connecting top plate is slidingly connected to the surface of the connecting slide rod, the bottom of the connecting top plate is fixedly connected with a spring, and the bottom of the connecting top plate is fixedly connected with an air cylinder.

[0009] Through the above technical scheme, the limiting top plates are symmetrically distributed left and right around the connecting top plate, and in the operation process of the device, the symmetric limiting top plates can uniformly limit the upward movement range of the connecting top plate, prevent the connecting top plate from being deviated or tilted when subjected to an upward force, thereby ensuring the structural stability of the entire lifting device and the accuracy of directional wheel lifting.

[0010] As a further improvement of the above scheme, the number of the fixed frames and the moving wheels is two, and the two fixed frames and the moving wheels are symmetrically distributed left and right around the support transverse plate.

[0011] As a further improvement of the above scheme, the limiting top plates are located at the top of the connecting top plate, and the number of the limiting top plates is two, and the two limiting top plates are symmetrically distributed left and right around the connecting top plate.

[0012] As a further improvement of the above scheme, the bottom of the air cylinder is in surface contact with the top of the support transverse plate, and the number of the mounting support rods is two, and the two mounting support rods are symmetrically distributed around the fixed clamping frame.

[0013] As a further improvement of the above scheme, the top of the mounting support rod is in surface contact with the bottom of the connecting top plate, and the number of the connecting clamping frames is two, and the two connecting clamping frames are symmetrically distributed around the connecting top plate.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The utility model discloses a spring and air cylinder act jointly on the connecting top plate, the air cylinder can accurately provide the power upwards or downwards according to need, realizes the lifting of directional wheel, and the spring plays the role of auxiliary buffering and support, when the air cylinder pushes the connecting top plate and rises, the spring is compressed and stores energy, when the air cylinder stops working or appears the fault, the spring releases energy, can maintain the height of directional wheel to a certain extent, avoids the directional wheel and suddenly drops, increases the reliability and stability of lifting device.

[0016] The utility model discloses a mounting clamping frame is stably clamped in the top of support transverse plate, guarantees the position fixed of air cylinder in the working process, prevents its displacement because of vibration or other external force, and the surface of fixed clamping frame is clamped to air cylinder, further strengthens the fixed effect of air cylinder, simultaneously, the mounting support rod connected on fixed clamping frame provides the support point for connecting top plate, and this firm installation and fixed structure ensure the connection compactness between each component, improve the reliability of entire lifting device.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present application;

[0018] Figure 2 is a schematic diagram of the overall structure of the present application;

[0019] Figure 3 is a schematic diagram of the overall structure of the present application;

[0020] Figure 4 is a schematic diagram of the overall structure of the present application.

[0021] Main symbol explanation:

[0022] 1, support horizontal plate; 2, fixed frame; 3, moving wheel; 4, connecting slide rod; 5, limit top plate; 6, spring; 7, installation card frame; 8, air cylinder; 9, fixed card frame; 10, installation support rod; 11, connecting card frame; 12, connecting top plate. DETAILED DESCRIPTION

[0023] In the following, the present application will be further described in conjunction with the drawings and specific embodiments. It should be noted that the following described embodiments or technical features can be combined in any manner to form new embodiments without conflict.

[0024] Embodiment:

[0025] Please combine Figures 1-4 , the directional wheel lifting device of the AGV car of the present embodiment, which comprises a support horizontal plate 1, a fixed frame 2 fixedly connected to the bottom of the support horizontal plate 1, a moving wheel 3 rotatably connected inside the fixed frame 2, a connecting slide rod 4 threadedly connected inside the support horizontal plate 1, and a limit top plate 5 fixedly connected to the upper surface of the connecting slide rod 4;

[0026] A spring 6 is fixedly connected to the top of the support horizontal plate 1, an installation card frame 7 is fixedly connected to the top of the support horizontal plate 1, an air cylinder 8 is clamped inside the installation card frame 7, a fixed card frame 9 is clamped to the surface of the air cylinder 8, an installation support rod 10 is fixedly connected to the surface of the fixed card frame 9, a connecting card frame 11 is slidingly connected to the surface of the installation support rod 10, and a connecting top plate 12 is fixedly connected to the top of the connecting card frame 11. The spring 6 and the air cylinder 8 act together on the connecting top plate 12, the air cylinder 8 can accurately provide upward or downward power as needed, the lifting of the directional wheel is realized, and the spring 6 plays a role in auxiliary buffering and supporting. When the air cylinder 8 pushes the connecting top plate 12 to rise, the spring 6 is compressed to store energy. When the air cylinder 8 stops working or fails, the spring 6 releases energy, which can maintain the height of the directional wheel to a certain extent, avoid the sudden drop of the directional wheel, and increase the reliability and stability of the lifting device.

[0027] The connecting top plate 12 is slidingly connected to the surface of the connecting slide rod 4. The connecting slide rod 4 provides guidance for the lifting of the connecting top plate 12, ensuring that the connecting top plate 12 maintains vertical movement during lifting, avoiding tilting or shaking. This precise guidance helps improve the accuracy of the directional wheel lifting, allowing the directional wheel to accurately adjust to the appropriate height to adapt to different working scenarios, such as crossing obstacles or operating on different height work planes.

[0028] The connecting top plate 12 is slidingly connected to the surface of the connecting slide rod 4, and the bottom of the connecting top plate 12 is fixedly connected with the spring 6 and the air cylinder 8.

[0029] The limiting top plate 5 is symmetrically distributed around the connecting top plate 12. During operation of the device, the symmetric limiting top plate 5 can uniformly limit the upward movement range of the connecting top plate 12, preventing the connecting top plate 12 from shifting or tilting when subjected to upward force, thereby ensuring the structural stability of the entire lifting device and guaranteeing the accuracy of the directional wheel lifting.

[0030] The number of fixed frames 2 and mobile wheels 3 is set to two, and the two fixed frames 2 and mobile wheels 3 are symmetrically distributed around the support cross plate 1.

[0031] The limiting top plate 5 is located at the top of the connecting top plate 12, and the number of limiting top plates 5 is set to two, with the two limiting top plates 5 symmetrically distributed around the connecting top plate 12.

[0032] The bottom of the air cylinder 8 is in contact with the top surface of the support cross plate 1, and the number of mounting brackets 10 is set to two, with the two mounting brackets 10 symmetrically distributed around the fixed clamping frame 9. The air cylinder 8 is stably clamped on the top of the support cross plate 1 by setting the mounting clamping frame 7, ensuring the position of the air cylinder 8 during work, preventing displacement due to vibration or other external forces. The fixed clamping frame 9 clamps the surface of the air cylinder 8, further enhancing the fixing effect of the air cylinder 8. At the same time, the mounting bracket 10 connected to the fixed clamping frame 9 provides a support point for the connecting top plate 12. This stable mounting and fixing structure ensures the tightness of the connection between the components, improving the reliability of the entire lifting device.

[0033] The top of the mounting bracket 10 is in contact with the bottom surface of the connecting top plate 12, and the number of connecting clamping frames 11 is set to two, with the two connecting clamping frames 11 symmetrically distributed around the connecting top plate 12.

[0034] The implementation principle of the AGV trolley directional wheel lifting device in the embodiment of the application is that the spring 6 and the air cylinder 8 jointly act on the connecting top plate 12, the air cylinder 8 can accurately provide upward or downward power according to the requirement, the lifting of the directional wheel is realized, and the spring 6 plays a role of auxiliary buffering and supporting; when the connecting top plate 12 is pushed upward by the air cylinder 8, the spring 6 is compressed to store energy; when the air cylinder 8 stops working or fails, the spring 6 releases the energy, the height of the directional wheel can be maintained to a certain extent, sudden lowering of the directional wheel is avoided, the reliability and stability of the lifting device are increased, the mounting clamping frame 7 is arranged to stably clamp the air cylinder 8 on the top of the supporting horizontal plate 1, the position of the air cylinder 8 in the working process is ensured to be fixed, displacement of the air cylinder 8 due to vibration or other external force is prevented, the surface of the air cylinder 8 is clamped by the fixed clamping frame 9, the fixing effect of the air cylinder 8 is further strengthened, meanwhile, the mounting supporting rod 10 connected to the fixed clamping frame 9 provides a supporting point for the connecting top plate 12, the stable mounting and fixing structure ensures the connection tightness between the components, and the reliability of the whole lifting device is improved.

[0035] The above embodiment is only a preferred embodiment of the utility model, and cannot be used to limit the range of the utility model protection, and any non-substantial change and replacement of the utility model on the basis of the utility model belongs to the range of the utility model protection.

Claims

1. An AGV trolley directional wheel lifting device, characterized in that, Includes a support plate (1), the bottom of which is fixedly connected to a fixed frame (2), the inside of which is rotatably connected to a movable wheel (3), the inside of which is threadedly connected to a connecting slide rod (4), and the upper surface of which is fixedly connected to a limiting top plate (5). A spring (6) is fixedly connected to the top of the supporting horizontal plate (1), and a mounting frame (7) is fixedly connected to the top of the supporting horizontal plate (1). A cylinder (8) is snapped into the inside of the mounting frame (7), and a fixing frame (9) is snapped into the surface of the cylinder (8). A mounting rod (10) is fixedly connected to the surface of the fixing frame (9), and a connecting frame (11) is slidably connected to the surface of the mounting rod (10). A connecting top plate (12) is fixedly connected to the top of the connecting frame (11).

2. The AGV trolley directional wheel lifting device as described in claim 1, characterized in that: The connecting top plate (12) is slidably connected to the surface of the connecting slide rod (4), and a spring (6) is fixedly connected to the bottom of the connecting top plate (12). A cylinder (8) is fixedly connected to the bottom of the connecting top plate (12).

3. The AGV trolley directional wheel lifting device as described in claim 1, characterized in that: The number of fixed frames (2) and moving wheels (3) is set to two, and the two fixed frames (2) and moving wheels (3) are symmetrically distributed on the left and right with the supporting horizontal plate (1) as the center.

4. The AGV trolley directional wheel lifting device as described in claim 1, characterized in that: The limiting top plate (5) is located on top of the connecting top plate (12). The number of the limiting top plates (5) is set to two, and the two limiting top plates (5) are symmetrically distributed on the left and right with the connecting top plate (12) as the center.

5. The AGV trolley directional wheel lifting device as described in claim 1, characterized in that: The bottom of the cylinder (8) is in contact with the top surface of the support plate (1), and the number of the mounting rods (10) is set to two, with the two mounting rods (10) symmetrically distributed around the fixing frame (9).

6. The AGV trolley directional wheel lifting device as described in claim 1, characterized in that: The bottom of the cylinder (8) is in contact with the top surface of the support plate (1), and the number of the mounting rods (10) is set to two, with the two mounting rods (10) symmetrically distributed around the fixing frame (9).

7. The AGV trolley directional wheel lifting device as described in claim 1, characterized in that: The top of the mounting support rod (10) contacts the bottom surface of the connecting top plate (12), and the number of the connecting clip frames (11) is set to two, with the two connecting clip frames (11) symmetrically distributed with the connecting top plate (12) as the center.

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