A loading and unloading lifting device for a carrier

Abstract

The utility model relates to 3C field electronic parts technical field, especially a kind of feeding and discharging use feeding and discharging lifting device, including carrier conveying mechanism and drive mechanism, carrier conveying mechanism includes bottom plate, the top of bottom plate is fixedly connected with guide column, the top center of bottom plate is fixedly connected with bearing block, bearing block is placed with carrier frame, the both sides of carrier frame are provided with adjustable stabilizing component that keep stable;Drive mechanism includes mounting plate, the top of mounting plate is fixedly installed with servo motor, servo motor is connected with the lifting rod that drive carrier frame moves up and down by transmission structure.This utility model discards traditional cylinder drive mode, using servo motor cooperation screw rod drive mechanism: servo motor can realize accurate speed and steering control, screw rod transmission can convert the rotary motion of motor into the smooth linear motion of slider, and transmission gap is small, transmission efficiency is high, finally drive lifting rod stable drive carrier frame to lift.

Description

Technical Field

[0001] This utility model relates to the field of electronic components technology in the 3C industry, and in particular to a loading and unloading lifting device for loading and unloading vehicles. Background Technology

[0002] In modern manufacturing, logistics warehousing, and automated production lines, the loading, unloading, and dispatching of carriers (such as material pallets, workpiece supports, and turnover boxes) are crucial for ensuring the continuity of production processes and improving overall operational efficiency. As the market demands increasing automation, precision, and capacity, traditional carrier loading and unloading methods have gradually revealed numerous limitations, making it difficult to meet the current requirements for efficient, precise, and continuous production operations.

[0003] Currently, devices for vertically lifting vehicles mostly employ methods such as cylinder drive, chain / wire rope lifting, or variable frequency motor drive. While cylinder drive is simple in structure and low in cost, its positioning accuracy is poor, and it cannot precisely stop at any position in the middle of the stroke, typically only controlling the "up" and "down" endpoints. Furthermore, its motion stability is poor, easily causing impacts or vibrations due to air pressure fluctuations, making it difficult to meet the requirements of precision loading and unloading operations. Utility Model Content

[0004] The purpose of this utility model is to solve the shortcomings of existing cylinder-driven carriers, such as poor vertical lifting and positioning accuracy, inability to stop precisely at any position in the middle of the stroke, poor motion stability, and susceptibility to impact or vibration due to air pressure fluctuations, which makes it difficult to meet the requirements of precision loading and unloading operations. Therefore, a loading and unloading lifting device for carriers is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A loading and unloading lifting device for a vehicle includes a vehicle conveying mechanism and a driving mechanism. The vehicle conveying mechanism includes a base plate, a guide column is fixedly connected to the top of the base plate, a bearing block is fixedly connected to the center of the top of the base plate, a vehicle frame is placed on the bearing block, and adjustable stabilizing components are provided on both sides of the vehicle frame to maintain stability.

[0007] The drive mechanism includes a mounting plate, on the top of which a servo motor is fixedly mounted. The servo motor is connected to a lifting rod that drives the carrier frame to move up and down via a transmission structure.

[0008] Preferably, the adjustable stabilizing component includes an L-shaped fixing plate installed at the bottom edge of the vehicle frame, a connecting plate fixedly connected to one end of the L-shaped fixing plate, a capped screw threadedly connected to the connecting plate, a pressing plate rotatably connected to one end of the capped screw near the L-shaped fixing plate, and a pulley fixedly installed on the side of the connecting plate near the guide post.

[0009] Preferably, the inner wall of the L-shaped fixing plate is attached to the inner wall of the vehicle frame, the extrusion plate is attached to the outer wall of the vehicle frame, and the L-shaped fixing plate and the extrusion plate are both fixedly connected with anti-slip pads by glue on the side near the vehicle frame.

[0010] Preferably, the transmission structure includes a fixed frame fixedly connected to the top of the mounting plate, a first synchronous pulley fixedly connected to the output end of the servo motor, a second synchronous pulley rotatably connected to the bottom of the mounting plate, the first synchronous pulley being connected to the second synchronous pulley via a synchronous belt, a lead screw rotatably connected inside the fixed frame, a slider threaded onto the lead screw, and the slider being fixedly connected to the lifting rod.

[0011] Preferably, a pair of symmetrically distributed slide rails are fixedly connected to the inner wall of the fixed frame, a limit plate is fixedly connected to the inner wall of the fixed frame, and a coupling is provided between the lead screw and the second synchronous pulley.

[0012] Preferably, the slider is slidably connected to the slide rail and the limiting plate respectively, and the second synchronous pulley is fixedly connected to the lead screw through a coupling.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. In use, this utility model eliminates the traditional cylinder-driven method by employing a servo motor combined with a lead screw drive mechanism. The servo motor enables precise speed and direction control, while the lead screw drive converts the motor's rotational motion into smooth linear motion of the slider, with small transmission gaps and high transmission efficiency. Ultimately, this drives the lifting rod to stably raise and lower the carrier frame. Compared to the problems of cylinder drives being susceptible to air pressure fluctuations and having low positioning accuracy, this device can achieve precise stopping of the carrier frame at any position within its stroke range, significantly reducing positioning errors and fully meeting the stringent positional accuracy requirements of precision loading and unloading operations.

[0015] 2. In use, this utility model, on the one hand, the symmetrical slide rails on the inner wall of the fixed frame in the drive mechanism guide and limit the slider, ensuring that the slider drives the lifting rod to always move along a straight trajectory and avoid lateral deviation; on the other hand, the adjustable stabilizing components of the carrier conveying mechanism further improve the stability of the carrier frame: the L-shaped fixed plate and the extrusion plate cooperate to clamp the two sides of the carrier frame, and both sides in contact with the carrier frame are provided with anti-slip pads, which can prevent the carrier frame from loosening and shifting during lifting and also buffer vibration; at the same time, the pulleys on the connecting plate can reduce the friction between the carrier frame and the guide column, making the carrier frame smoother when it rises and falls with the lifting rod. With the cooperation of the dual stabilizing structure, the device operates without impact or vibration, and its motion stability far exceeds that of traditional cylinder-driven equipment. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a loading and unloading lifting device for a vehicle proposed in this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the vehicle conveying mechanism of the loading and unloading lifting device for vehicle proposed in this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the drive mechanism of a loading and unloading lifting device for a vehicle proposed in this utility model;

[0019] Figure 4 This is a cross-sectional view of the drive mechanism of a loading and unloading lifting device for a vehicle proposed in this utility model.

[0020] In the diagram: 1. Carrier conveyor mechanism; 2. Drive mechanism; 3. Base plate; 4. Guide column; 5. Bearing block; 6. Carrier frame;

[0021] 7. Adjustable stabilizing component; 70. L-shaped fixing plate; 71. Connecting plate; 72. Capped screw; 73. Extrusion plate; 74. Pulley;

[0022] 8. Mounting plate; 9. Servo motor; 10. Lifting rod; 11. Fixing frame; 12. Synchronous pulley one; 13. Synchronous pulley two; 14. Synchronous belt; 15. Lead screw; 16. Slider; 17. Slide rail; 18. Limiting plate; 19. Coupling. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Reference Figures 1-4 A loading and unloading lifting device for a vehicle includes a vehicle conveying mechanism 1 and a drive mechanism 2.

[0025] The vehicle conveying mechanism 1 includes a base plate 3. Guide posts 4 are fixedly connected to the four corners of the top of the base plate 3. The guide posts 4 are vertically arranged and distributed in a rectangular pattern. A bearing block 5 is fixedly connected to the center of the top of the base plate 3. A vehicle frame 6 is placed on top of the bearing block 5, and the vehicle frame 6 is used to hold the vehicle to be conveyed. Adjustable stabilizing components 7 are provided on both sides of the vehicle frame 6 to ensure stability during movement.

[0026] The drive mechanism 2 includes a mounting plate 8, which is horizontally positioned and located below the base plate 3. A servo motor 9 is fixedly mounted on one side of the top of the mounting plate 8. The output end of the servo motor 9 is connected to a lifting rod 10 through a transmission structure. The top end of the lifting rod 10 is fixedly connected to the bottom of the carrier frame 6. When the servo motor 9 is working, it drives the lifting rod 10 to move up and down through the transmission structure, thereby driving the carrier frame 6 to move up and down.

[0027] The adjustable stabilizing assembly 7 includes an L-shaped fixing plate 70 installed at the bottom edge of the vehicle frame 6. The horizontal section of the L-shaped fixing plate 70 is fixedly connected to the bottom of the vehicle frame 6 by bolts. A connecting plate 71 is fixedly connected to one end of the vertical section of the L-shaped fixing plate 70. The connecting plate 71 is horizontally positioned, and a capped screw 72 is threaded through and connected to the connecting plate 71. The capped screw 72 is horizontally positioned, and a pressing plate 73 is rotatably connected to the end of the capped screw 72 near the L-shaped fixing plate 70 via a bearing. The pressing plate 73 is parallel to the outer wall of the vehicle frame 6. A pulley 74 is fixedly installed on the side of the connecting plate 71 near the guide post 4 via a rotating shaft. The pulley 74 contacts the side wall of the guide post 4 and can slide along the side wall of the guide post 4.

[0028] The inner wall of the L-shaped fixing plate 70 is fitted against the inner wall of the vehicle frame 6, and the compression plate 73 is fitted against the outer wall of the vehicle frame 6. Through the cooperation of the L-shaped fixing plate 70 and the compression plate 73, the vehicle frame 6 is clamped and fixed. On the side of the L-shaped fixing plate 70 and the compression plate 73 closest to the vehicle frame 6, anti-slip pads are fixedly connected with rubber material, which can increase the friction between the anti-slip pads and the vehicle frame 6, further improve the fixing effect, and at the same time avoid wear on the vehicle frame 6.

[0029] The transmission structure includes a fixed frame 11 fixedly connected to the top of the mounting plate 8. The fixed frame 11 is vertically positioned and located on one side of the servo motor 9. A synchronous pulley 12 is fixedly connected to the output end of the servo motor 9. A synchronous pulley 13 is rotatably connected to the bottom of the mounting plate 8 corresponding to the position of the synchronous pulley 12. The synchronous pulleys 12 and 13 are the same size and are located in the same vertical plane. The synchronous pulley 12 is connected to the synchronous pulley 13 via a synchronous belt 14, forming a synchronous transmission structure. A lead screw 15 is rotatably connected vertically inside the fixed frame 11. A slider 16 is threaded onto the lead screw 15, and one side of the slider 16 is fixedly connected to the bottom end of the lifting rod 10.

[0030] A pair of symmetrically distributed slide rails 17 are fixedly connected to both sides of the inner wall of the fixed frame 11, and the slide rails 17 are arranged vertically. Limiting plates 18 are fixedly connected to the top and bottom ends of the inner wall of the fixed frame 11. The limiting plates 18 are used to restrict the movement range of the slider 16, preventing the slider 16 from moving out of the range of the lead screw 15. A coupling 19 is provided between the lead screw 15 and the second synchronous pulley 13. The second synchronous pulley 13 is fixedly connected to the bottom end of the lead screw 15 through the coupling 19, so that the second synchronous pulley 13 can drive the lead screw 15 to rotate synchronously.

[0031] The two sides of the slider 16 are slidably connected to the corresponding slide rails 17, and the upper and lower ends of the slider 16 are slidably connected to the corresponding limit plates 18. Through the cooperation of the slide rails 17 and the limit plates 18, the slider 16 can be stably moved in the vertical direction.

[0032] It should be noted that the specific model and specifications of the servo motor 9 and coupling 19 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated here. Both can be powered by external devices and controlled to turn on and off.

[0033] Working principle:

[0034] Before use, the operator first places the carrier stably on the carrier frame 6, and then pushes the extrusion plate 73 inward by turning the capped screws 72 on both sides of the adjustable stabilizing components 7. This moves the plate inward and, in conjunction with the L-shaped fixing plate 70, firmly clamps the carrier frame 6, ensuring that it does not wobble during transport. At the same time, the pulley 74 is pressed against the side wall of the guide column 4 to provide guidance for subsequent lifting. After clamping is completed, the servo motor 9 is started. The motor transmits power to the coupling 19 through the synchronous pulley 12, synchronous belt 14, and synchronous pulley 13 at the output end, thereby driving the lead screw 15 to rotate.

[0035] The rotation of the lead screw 15 causes the threaded slider 16 to rise or fall smoothly along the vertical slide rail 17, while simultaneously moving the entire carrier frame 6 and the carrier synchronously via the lifting rod 10. During this process, the pulley 74 rolls along the guide post 4, effectively suppressing lateral deviation and ensuring precise lifting trajectory. When the carrier frame 6 reaches the target height, the servo motor 9 stops operating, and the limit plate 18 ensures that the slider 16 and the carrier are accurately positioned, thus completing a stable carrier transport operation.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A loading and unloading lifting device for a vehicle, comprising a vehicle conveying mechanism (1) and a driving mechanism (2), characterized in that, The vehicle conveying mechanism (1) includes a base plate (3), a guide column (4) is fixedly connected to the top of the base plate (3), a bearing block (5) is fixedly connected to the center of the top of the base plate (3), a vehicle frame (6) is placed on the bearing block (5), and adjustable stabilizing components (7) are provided on both sides of the vehicle frame (6) to maintain stability. The drive mechanism (2) includes a mounting plate (8), on the top of which a servo motor (9) is fixedly mounted. The servo motor (9) is connected to a lifting rod (10) that drives the carrier frame (6) to move up and down through a transmission structure.

2. The loading and unloading lifting device for a vehicle according to claim 1, characterized in that, The adjustable stabilizing component (7) includes an L-shaped fixing plate (70) installed at the bottom edge of the vehicle frame (6). One end of the L-shaped fixing plate (70) is fixedly connected to a connecting plate (71). A capped screw (72) is threaded onto the connecting plate (71). A pressing plate (73) is rotatably connected to one end of the capped screw (72) near the L-shaped fixing plate (70). A pulley (74) is fixedly installed on the side of the connecting plate (71) near the guide post (4).

3. The loading and unloading lifting device for a vehicle according to claim 2, characterized in that, The inner wall of the L-shaped fixing plate (70) is attached to the inner wall of the vehicle frame (6), and the extrusion plate (73) is attached to the outer wall of the vehicle frame (6). The L-shaped fixing plate (70) and the extrusion plate (73) are both fixed with anti-slip pads by glue on the side of the vehicle frame (6).

4. A loading and unloading lifting device for a vehicle according to claim 1, characterized in that, The transmission structure includes a fixed frame (11) fixedly connected to the top of the mounting plate (8), a synchronous pulley (12) fixedly connected to the output end of the servo motor (9), a synchronous pulley (13) rotatably connected to the bottom of the mounting plate (8), the synchronous pulley (12) being connected to the synchronous pulley (13) via a synchronous belt (14), a lead screw (15) rotatably connected inside the fixed frame (11), a slider (16) threadedly connected to the lead screw (15), and the slider (16) being fixedly connected to the lifting rod (10).

5. The loading and unloading lifting device for a vehicle according to claim 4, characterized in that, The inner wall of the fixed frame (11) is fixedly connected with a pair of symmetrically distributed slide rails (17), and the inner wall of the fixed frame (11) is fixedly connected with a limit plate (18). A coupling (19) is provided between the lead screw (15) and the second synchronous pulley (13).

6. The loading and unloading lifting device for a vehicle according to claim 5, characterized in that, The slider (16) is slidably connected to the slide rail (17) and the limiting plate (18) respectively, and the second synchronous pulley (13) is fixedly connected to the lead screw (15) through the coupling (19).

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