Stable motor control device for unloading trolley

Abstract

The utility model discloses a stable formula unloading trolley motor control device belongs to unloading technical field. A stable formula unloading trolley motor control device, including the frame, the inside fixedly connected with motor of frame, the output fixedly connected with driving pulley of motor, driving pulley is connected with driven pulley through the belt, the inside fixedly connected with the rotating shaft of driven pulley, the both ends outside rotation is connected in the inside of frame of rotating shaft, the both sides fixedly connected with connecting rod of rotating shaft's outside, the other end all rotationally connected with transmission assembly of connecting rod, transmission assembly is used for driving the carriage to carry out the lifting operation. The utility model discloses a motor drive pulley transmission structure, cooperation connecting rod and transmission assembly drive carriage realize stable lifting unloading, utilize the mobile wheel design of lock -up simultaneously and give consideration to the mobile convenience of device and operation stability, and the whole structure design is reasonable, and convenient operation has stronger practicality.

Description

Technical Field

[0001] This utility model relates to the field of unloading technology, and more specifically, to a stable unloading trolley motor control device. Background Technology

[0002] Unloading trolleys are widely used in industry, construction, logistics, and other fields. As a common material handling and unloading machine, they typically have moving and tipping functions to unload materials from transport vehicles or storage points. Traditional unloading trolleys are generally designed to reduce the burden of manual handling and improve work efficiency, featuring a stable structure and strong load-bearing capacity to adapt to the unloading needs of different materials. Depending on the application scenario, unloading trolleys can operate in manual, semi-automatic, or fully automatic modes, equipped with electric drive or hydraulic systems, and possess intelligent control functions to achieve precise unloading operations.

[0003] However, traditional unloading trolleys still have the following problems: First, they are not very stable during the unloading process and are easily affected by improper operation or external factors, which may lead to unsmooth unloading or material loss. Second, they lack mobility and operational flexibility, especially in scenarios where frequent movement is required. Third, in terms of safety, they lack effective braking and positioning devices during the unloading process, which may lead to equipment instability or accidental movement.

[0004] Based on this, the present invention designs a stable unloading trolley motor control device to solve the above problems. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] The purpose of this invention is to provide a stable unloading trolley motor control device to solve the problems mentioned in the background art.

[0007] 2. Technical Solution

[0008] A stable unloading trolley motor control device includes a frame, a motor fixedly connected inside the frame, a drive pulley fixedly connected to the output end of the motor, the drive pulley being connected to a driven pulley via a belt, a rotating shaft fixedly connected inside the driven pulley, the two ends of the rotating shaft being rotatably connected to the inside of the frame, connecting rods fixedly connected to the two outer sides of the rotating shaft, and a transmission assembly rotatably connected to the other end of each connecting rod, the transmission assembly being used to drive the trolley to perform lifting operations.

[0009] Preferably, the transmission assembly includes a baffle, the outer sides of which are rotatably connected to a connecting rod. The baffle is disposed outside the carriage, which is disposed on the top of the frame. The inner sides of the baffle are connected to the carriage via a connecting shaft.

[0010] Preferably, mounting plates are fixedly connected to both sides of the bottom of the carriage, and the mounting plates are rotatably connected to the frame via a second connecting shaft.

[0011] Preferably, the outer part of the second connecting shaft is connected through to the inside of the vehicle frame.

[0012] Preferably, the bottom four corners of the vehicle frame are fixedly connected with movable wheels.

[0013] Preferably, the frame is externally fixed with a handle.

[0014] Preferably, the four movable wheels are respectively positioned at the four corners of the bottom of the frame, and the axes of the four movable wheels are on the same horizontal plane.

[0015] Preferably, the movable wheel on the left is a lockable movable wheel.

[0016] 3. Beneficial effects

[0017] Compared with existing technologies, the advantages of this utility model are:

[0018] 1) In this utility model, a motor drives the active pulley to rotate, which in turn drives the driven pulley to rotate via a belt. The driven pulley drives the rotating shaft, which in turn drives the connecting rod, which in turn moves the baffle. The movement of the baffle controls the lifting and lowering of the carriage via a connecting shaft, and at the same time, the baffle opens the carriage opening to complete the unloading operation. This design enables efficient and stable unloading.

[0019] 2) In this utility model, the bottom of the carriage is rotatably connected to the frame through the mounting plate and the second connecting shaft. In conjunction with the transmission component, the carriage is lifted and lowered, so that the carriage can rotate stably around the second connecting shaft during the unloading process, which improves the stability of the unloading operation. At the same time, the four corners of the bottom of the frame are equipped with movable wheels to facilitate the overall movement of the device, and the left movable wheel can be locked to ensure that the device will not move accidentally during the unloading operation, which further enhances the safety of the operation.

[0020] 3) In summary, this utility model uses a motor-driven pulley transmission structure, in conjunction with connecting rods and transmission components, to drive the carriage to achieve stable lifting and unloading. At the same time, the design of lockable movable wheels takes into account both the ease of movement and operational stability of the device. The overall structure is reasonably designed, easy to operate, and has strong practicality. Attached Figure Description

[0021] Fig. 1This is a schematic diagram of the overall structure of this utility model;

[0022] Fig. 2 This is a bottom view of the overall structure of this utility model;

[0023] Fig. 3 This is a schematic diagram of the overall structure of this utility model.

[0024] The following are the labels in the diagram: 1. Frame; 2. Transfer wheel; 3. Handlebar; 4. Motor; 5. Drive pulley; 6. Driven pulley; 7. Belt; 8. Rotating shaft; 9. Connecting rod; 10. Baffle; 11. Mounting plate; 12. Carriage; 13. Connecting shaft one; 14. Connecting shaft two. Detailed Implementation

[0025] Example: Please refer to Figs. 1-3 The system includes a frame 1, which is a rectangular frame structure with a pre-drilled mounting cavity for the motor 4, ensuring that the motor 4 will not shift position during operation. The motor 4, a servo motor, is fixedly connected inside the frame 1, featuring stable speed and sufficient driving force to meet the power requirements during unloading operations. The output end of the motor 4 is fixedly connected to a drive pulley 5 via a key connection. The drive pulley 5 and the driven pulley 6 are matched in model and specifications, and the drive pulley 5 is connected to the driven pulley 6 via a belt 7 made of high-strength rubber, which effectively reduces slippage during transmission and ensures stable power transmission.

[0026] A rotating shaft 8 is fixedly connected to the driven pulley 6 via an interference fit. Both ends of the rotating shaft 8 are rotatably connected to the inside of the frame 1 via bearings. The bearings reduce the frictional resistance between the rotating shaft 8 and the frame 1, extending the service life of the components. Connecting rods 9 are symmetrically fixedly connected to both sides of the rotating shaft 8. The connecting rods 9 are made of alloy steel and have strong load-bearing capacity. The other end of each connecting rod 9 is rotatably connected to a transmission assembly via a pin. The transmission assembly drives the carriage 12 to perform lifting operations, ensuring smooth unloading.

[0027] The transmission assembly includes a baffle 10, which is angled to match the outer wall of the carriage 12. The two outer sides of the baffle 10 are rotatably connected to the connecting rod 9 via pins, allowing it to move synchronously with the rotation of the connecting rod 9. The baffle 10, located on the outside of the carriage 12, provides some obstruction to the materials inside, preventing spillage during transport. The carriage 12 is located on top of the frame 1 and is a rectangular box structure with an open top, used for loading materials to be unloaded. The two inner sides of the baffle 10 are rotatably connected to the carriage 12 via a connecting shaft 13. Wear-resistant bushings are provided at the connection points between the connecting shaft 13 and the baffle 10 and the carriage 12 to improve the wear resistance of the connection points.

[0028] ReferenceFig. 2 Mounting plates 11 are symmetrically fixed to both sides of the bottom of the carriage 12. The mounting plates 11 are L-shaped steel plates and are fixed to the carriage 12 by welding, ensuring a strong connection. The mounting plates 11 are rotatably connected to the frame 1 via connecting shaft 14. The connecting shaft 14, the mounting plates 11, and the frame 1 are all clearance fit, ensuring that the carriage 12 can rotate flexibly around the connecting shaft 14. The connecting shaft 14 is externally connected to the inside of the frame 1, with both ends extending outwards from the frame 1. Anti-detachment retaining rings are provided on the outside of the extended ends to prevent the connecting shaft 14 from falling out of the frame 1 during use.

[0029] Four casters 2 are fixedly connected to the four corners of the bottom of the frame 1. These casters are omnidirectional, facilitating movement of the device in different locations. The four casters 2 are positioned at the four corners of the bottom of the frame 1, and their axes are on the same horizontal plane, ensuring the device remains level during movement and unloading, preventing tilting. The left caster 2 is a lockable caster with a foot-operated locking mechanism on its outer side. Stepping on the locking mechanism secures the caster 2, preventing accidental movement during unloading. A handle 3 is fixedly connected to the outside of the frame 1. The handle 3 has a U-shaped structure and is bolted to one side of the frame 1, allowing operators to easily push the device. The handle 3 is covered with a non-slip rubber sleeve for improved grip comfort.

[0030] Working principle of this utility model:

[0031] When using the motor control device of this stable unloading trolley, the operator first pushes the moving wheels 2 at the bottom of the frame 1 by holding the handle 3, moving the device to the designated unloading position. After reaching the position, the locking mechanism on the left side can be stepped on to lock the moving wheels 2, fixing the moving wheels 2 and preventing the device from shifting during the unloading process, thus ensuring operational safety.

[0032] When unloading is required, the motor 4 inside the frame 1 is started. After being powered on, the motor 4 outputs power, driving the drive pulley 5, which is fixedly connected to its output end, to rotate. Since the drive pulley 5 is connected to the driven pulley 6 via the belt 7, the rotation of the drive pulley 5 will drive the driven pulley 6 to rotate synchronously via the belt 7. The rotating shaft 8, which is fixedly connected inside the driven pulley 6, will rotate together with the driven pulley 6. The rotating shaft 8 is rotatably connected to the frame 1 via bearings, and can rotate stably without being affected by excessive frictional resistance.

[0033] When the rotating shaft 8 rotates, the connecting rods 9 fixedly connected to its outer two sides will rotate around the axis of the rotating shaft 8. The other end of the connecting rod 9 is rotatably connected to the baffle 10, so the connecting rod 9 will drive the baffle 10 to move synchronously. The baffle 10 is rotatably connected to the carriage 12 through the connecting shaft 13. Driven by the baffle 10, the carriage 12 will rotate around the connecting shaft 14 on the bottom mounting plate 11 as the rotation center, realizing the lifting operation of the carriage 12.

[0034] As the carriage 12 rotates upward around the connecting shaft 14, the opening of the carriage 12 gradually tilts, and at the same time, the baffle 10 gradually moves away from the opening of the carriage 12 under the pull of the connecting rod 9, so that the opening of the carriage 12 is fully opened. At this time, the material inside the carriage 12 slides down from the tilted opening under the action of gravity, completing the unloading operation.

[0035] After unloading is completed, motor 4 is turned off, and motor 4 stops outputting power. The driving pulley 5, driven pulley 6, rotating shaft 8, and connecting rod 9 all stop moving. Then, the operator can push the device in reverse or reverse the operation of motor 4 (motor 4 has a reverse function) to return the carriage 12 and baffle 10 to their initial positions. Release the locking mechanism of the left moving wheel 2, and the device can be pushed to the next work location to carry out the next round of material transportation and unloading operations.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A stable unloading trolley motor control device, comprising a frame (1), characterized in that: A motor (4) is fixedly connected inside the frame (1). A drive pulley (5) is fixedly connected to the output end of the motor (4). The drive pulley (5) is connected to the driven pulley (6) via a belt (7). A rotating shaft (8) is fixedly connected inside the driven pulley (6). Both ends of the rotating shaft (8) are rotatably connected to the inside of the frame (1). Connecting rods (9) are fixedly connected to both sides of the rotating shaft (8). A transmission assembly is rotatably connected to the other end of each connecting rod (9). The transmission assembly is used to drive the carriage (12) to perform lifting operations.

2. The motor control device for a stable unloading trolley according to claim 1, characterized in that: The transmission assembly includes a baffle (10), the two sides of which are rotatably connected to the connecting rod (9). The baffle (10) is located outside the carriage (12), which is located on the top of the frame (1). The two sides of the baffle (10) are connected to the carriage (12) via a connecting shaft (13).

3. The motor control device for a stable unloading trolley according to claim 2, characterized in that: The bottom sides of the carriage (12) are fixedly connected to mounting plates (11), and the mounting plates (11) are rotatably connected to the frame (1) through connecting shaft two (14).

4. The motor control device of the stable unloading trolley according to claim 3, characterized in that: The external of the connecting shaft 2 (14) is connected through to the inside of the frame (1).

5. The motor control device for a stable unloading trolley according to claim 1, characterized in that: The bottom four corners of the frame (1) are fixedly connected with movable wheels (2).

6. The motor control device for a stable unloading trolley according to claim 1, characterized by: The frame (1) is externally fixedly connected to a handle (3).

7. The motor control device for a stable unloading trolley according to claim 5, characterized in that: The four movable wheels (2) are respectively located at the four corners of the bottom of the frame (1), and the axes of the four movable wheels (2) are on the same horizontal plane.

8. The motor control device for a stable unloading trolley according to claim 5, characterized in that: The movable wheel (2) on the left is a lockable movable wheel (2).

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