Mechanical hoist device

Abstract

The utility model provides a kind of mechanical hoist device, it is related to material hoisting equipment field, including rectangular frame;Rodless cylinder, including piston end;Hoist, including has supporting plate;Push group, including base, supporting plate and pusher, base and supporting plate are fixed, and one end of supporting plate and base is rotatably connected, pusher is located in the cavity of base, for pushing supporting plate rotates upwards around rotating center, two-stage collaborative lifting of rodless cylinder and chain hoist is passed through, efficient movement in vertical direction is realized under transverse space constraint, the low profile characteristics of rodless cylinder greatly reduces transverse space occupancy, the secondary accurate positioning of chain hoist ensures stable operation under narrow distance scene;Simplify structure and improve space utilization, end cam drive's oblique sliding mechanism and roller auxiliary design, under the premise that no need external transverse thrust device, utilize gravity and rolling friction to complete tray rapid transfer, further simplify structure and improve space utilization.

Description

Technical Field

[0001] This utility model relates to the field of material lifting equipment, and in particular to a mechanical lifting device. Background Technology

[0002] In existing technologies, multi-layer material lifting systems mostly adopt hydraulic drive or electric push rod structures. Their power units and lifting mechanisms are bulky, resulting in a large overall space occupation and making it difficult to meet the vertical conveying needs in narrow spaces. While traditional chain elevators can partially reduce lateral space, the single drive method cannot simultaneously handle large-stroke lifting and high-precision secondary positioning. Furthermore, when materials are transferred to the end roller conveyor, additional push rods or tilting mechanisms are usually required to complete the attitude adjustment, which complicates the structure and increases the risk of failure. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a mechanical hoisting device. The technical problem to be solved by the present invention is that the existing hoisting system has structural redundancy in narrow spaces, large lateral space occupation, insufficient secondary positioning accuracy and low end transfer efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a mechanical lifting device, comprising a rectangular frame; a rodless cylinder installed at the bottom of the rectangular frame, including a piston end; a lifting mechanism that moves upward following the piston end, including a support plate; and a pushing assembly, comprising a base, a support plate, and a pushing component. The base and the support plate are fixed, and one end of the support plate is rotatably connected to the base. The pushing component is located in the cavity of the base and is used to push the support plate to rotate upward around the rotation center.

[0005] In a preferred embodiment, the pusher is a cylinder with a rotating wheel on top, the cylinder seat is fixed to the bottom of the cavity, the piston rod and the cylinder seat are slidably connected, and the piston rod is rotatably connected to the top of the piston rod, the rotating wheel is used to contact the back of the support plate.

[0006] In a preferred embodiment, the pusher includes a cam and a motor, the motor is mounted on the side wall of the cavity, the output shaft of the motor is eccentrically fixedly connected to the cam, and the cam is used to contact the back of the support plate.

[0007] In a preferred embodiment, the pusher further includes a lifting rod and a roller. One end of the lifting rod is rotatably connected to the inner wall of the cavity, and the other end of the lifting rod is rotatably connected to the roller. A through hole is provided on the support plate, and the roller can extend out from the through hole. The rotation center of the cam and the rotation center of the lifting rod are connected by a belt drive. The belt drive is provided with a tensioning element. When the motor rotates, the roller first passes through the through hole and contacts the bottom of the tray, and then the cam contacts the back of the support plate.

[0008] In a preferred embodiment, a pulley is fixedly connected to the rotation center of the cam, a pulley is fixedly connected to the rotation center of the lifting rod, one end of the tensioning rod is elastically rotatably connected to the side wall of the chamber and the other end is rotatably connected to the tensioning wheel, and the transmission belt is simultaneously sleeved on pulley one, pulley two and tensioning wheel.

[0009] In a preferred embodiment, the rodless cylinder includes a cylinder body and a piston end. The cylinder body is fixed to a rectangular frame profile, and a mounting plate is connected to the piston end by fasteners.

[0010] In a preferred embodiment, the hoist includes a frame, a motor, and a chain. The frame is connected to a mounting plate by fasteners, the motor is mounted on the frame, a support plate is vertically slidably connected to the frame, and a sprocket fixedly connected to the output shaft of the motor is engaged with the chain drive. One section of the support plate and the sprocket are fixedly connected.

[0011] In a preferred embodiment, a stopper is installed on the rectangular frame to limit the upward movement distance of the piston end and the support plate, respectively.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] Through a two-stage coordinated lifting system using rodless cylinders and a chain elevator, efficient vertical movement is achieved under lateral space constraints. The low profile of the rodless cylinders significantly reduces lateral space occupation, while the chain elevator's secondary precise positioning ensures stable operation in narrow-space scenarios, simplifying the structure and improving space utilization. The end-cam driven tilting and sliding mechanism, along with the roller-assisted design, utilizes gravity and rolling friction to quickly transfer pallets without requiring external lateral thrust devices, further simplifying the structure and improving space utilization. This system is particularly suitable for narrow vertical aisle scenarios such as warehousing logistics and production line workstations, balancing compact layout with high-precision, high-efficiency material handling requirements. Attached Figure Description

[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0015] Figure 1 This is a structural diagram of the entire device in this utility model.

[0016] Figure 2 This is a side view of the entire device in this utility model.

[0017] Figure 3 This is a schematic diagram showing the arrangement of the pushing component in this utility model.

[0018] Figure 4This is a structural diagram of the pusher component in this utility model.

[0019] Figure 5 This is a schematic diagram showing the arrangement of the tensioning wheel in this utility model.

[0020] The attached figures are labeled as follows:

[0021] 10. Rectangular frame; 20. Rodless cylinder; 30. Lifting machine; 40. Pushing assembly; 41. Base; 42. Support plate; 43. Pushing component; 431. Cam; 432. Lifting rod; 433. Roller; 434. Perforation; 435. Tensioning rod. Detailed Implementation

[0022] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0023] Example

[0024] like Figures 1-5 This product mainly consists of a rectangular frame 10, a rodless cylinder 20, and a hoist 30.

[0025] The rectangular frame 10 is formed by connecting several profiles through corner brackets to form a rectangular body.

[0026] The rodless cylinder 20 is mounted on one side of the rectangular frame 10. It is a mechanical rodless cylinder, which has an axial groove. The piston is mechanically connected to an external slider via a sealing strip and a dustproof steel strip. When air pressure pushes the piston, the slider slides along the groove to complete linear motion. The mechanical rodless cylinder uses a mechanical structure to drive the external actuator through the piston end, saving about half the axial space compared to a traditional cylinder, which aligns with the product's design goal of minimizing space occupation. Since the structure of the mechanical rodless cylinder is existing technology, it will not be described in detail.

[0027] The elevator 30 is a chain elevator. Its core structure consists of a drive unit, a closed chain, support plates, a sprocket assembly, and a support frame. The drive unit includes a motor, a brake-type reducer, and a transmission box, rigidly connected to the drive sprocket via an output shaft. The chain uses a high-strength wear-resistant plate chain or a bushing roller chain. Support plates are densely arranged on both sides of the chain using bolts or special joints to ensure even material loading. The sprocket assembly includes a drive sprocket, upper and lower driven sprockets, and transition sprockets, forming a closed-loop traction path. The chain tension is dynamically adjusted using a tensioning device, either a spring or a counterweight. The column is equipped with a limit groove and an anti-fall slider system. The slider uses a swing block, elastic elements, and limit rods to prevent falling. The fully enclosed casing uses a folded-edge welding process, combining rigidity and sealing. The top discharge port is equipped with a rubber baffle to prevent material backflow. All of the above structures are existing technology and will not be described in detail.

[0028] In use, the support frame of the hoist 30 is connected to the piston end of the rodless cylinder 20 with fasteners, so that the piston end of the rodless cylinder 20 can drive the entire hoist 30 to move up and down.

[0029] Several sensors are installed on the rectangular frame 10, and the sensors, controllers, rodless cylinders 20, and drive components in the hoist 30 are electrically connected.

[0030] For example, sensors A and B are arranged from bottom to top on the rectangular frame 10. The controller opens the air pressure valve, and compressed air enters and lifts the piston end. The piston drives the entire elevator 30 to move upward. When sensor A detects that the piston has moved to the captured position, the controller controls the valve to close and stop, and the piston stops moving. At the same time, the controller controls the elevator 30 to lift the pallet in the second stage. When sensor B detects that the pallet has moved to the designated position, the controller controls the motor in the elevator 30 to stop, and the elevator 30 transports the pallet to the transverse roller conveyor.

[0031] Preferably, a buffer is also installed on the rectangular frame 10, located at the end of the piston's movement path and the end of the pallet's movement path, respectively.

[0032] Preferably, a stopper is installed on the rectangular frame 10 to limit the upward movement distance of the piston end and the support plate respectively. The structure and usage of the stopper are also existing technologies, so they will not be described in detail.

[0033] The elevator 30 has a pusher assembly 40 on its pallet, on which a pallet for holding materials is placed.

[0034] The pushing assembly 40 includes a base 41, a support plate 42, and a pushing component 43. The base 41 is fixed to the pallet of the elevator 30. The base 41 is rotatably connected to the support plate 42 via a hinge, and the pallet is placed on the support plate 42. The pushing component 43 is located in the cavity of the base 41.

[0035] In the first embodiment, the pusher 43 is a cylinder with a rotating wheel at the top. The cylinder seat is fixed to the bottom of the cavity, and the piston rod is slidably connected to the cylinder seat. The rotating wheel is rotatably connected to the top of the piston rod, and the rotating wheel is used to contact the back of the support plate 42. When the piston rod extends, the rotating wheel contacts the back of the support plate 42 and pushes upward, causing the support plate 42 to flip. The movement mode of the cylinder and the rest of the structure are existing technologies and will not be described in detail.

[0036] In the second scheme, the pusher 43 includes a cam 431, a lifting rod 432, a roller 433, a through hole 434, and a tensioning rod 435. A motor is installed on one side of the base 41. The installation method of the motor is existing technology and will not be described in detail. Cam 431 is rotatably connected to the cavity sidewall of base 41. The output shaft of the motor is eccentrically fixed to cam 431. One end of lifting rod 432 is rotatably connected to the inner wall of the cavity, and the other end is rotatably connected to roller 433. The middle section of lifting rod 432 protrudes outward to form a limiting pin. An arc-shaped limiting groove is provided on the cavity sidewall. The limiting pin slides in the limiting groove to ensure the stability of lifting rod 432 when rotating. Cam 431 and lifting rod 432 move synchronously through belt drive. A through hole 434 is provided on support plate 42. In this way, when the motor is turned on, the motor drives cam 431 to rotate and pushes support plate 42 upward, making support plate 42 tilt. At the same time, under the action of belt drive, lifting rod 432 also rotates synchronously, lifting roller 433. The pallet on support plate 42 can be supported by roller 433, improving the smoothness of pallet sliding down support plate 42 into roller conveyor.

[0037] Preferably, the lifting rod 432 and the roller 433 can be designed in multiple rows to improve the support and stability of the pallet by the roller 433.

[0038] It should be noted that the belt drive mentioned above includes pulley one, pulley two, a transmission belt, and tension rod 435. Pulley one and pulley two are fixed to the rotation center of cam 431 and the rotation center of lifting rod 432, respectively. One end of tension rod 435 is elastically rotatably connected to the cavity sidewall, and the other end is rotatably connected to a tensioning wheel. The transmission belt is sleeved on pulley one, pulley two, and the corresponding tensioning wheel.

[0039] The above design requires that the lifting rod 432 contact the bottom of the tray first, and then the cam 431 contactes the support plate 42.

[0040] This embodiment utilizes a two-stage coordinated lifting system of rodless cylinders and a chain elevator to achieve efficient vertical movement under lateral space constraints. The low-profile characteristics of the rodless cylinders significantly reduce lateral space occupation, while the secondary precise positioning of the chain elevator ensures stable operation in narrow-space scenarios, simplifying the structure and improving space utilization. The end-cam driven tilting and sliding mechanism, along with the roller-assisted design, utilizes gravity and rolling friction to quickly transfer pallets without requiring external lateral thrust devices, further simplifying the structure and improving space utilization. This system is particularly suitable for narrow vertical aisle scenarios such as warehousing logistics and production line workstations, balancing compact layout with high-precision and high-efficiency material handling requirements.

[0041] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A mechanical hoisting device, characterized in that, include: Rectangular frame (10); A rodless cylinder (20) is mounted on the bottom of a rectangular frame (10), including the piston end; The elevator (30) moves upward following the piston end and includes a support plate; The pushing assembly (40) includes a base (41), a support plate (42) and a pusher (43). The base (41) and the support plate are fixed. The support plate (42) is rotatably connected to one end of the base (41). The pusher (43) is located in the cavity of the base (41) and is used to push the support plate (42) to rotate upward around the rotation center.

2. The mechanical hoist device according to claim 1, characterized in that, The pusher (43) is a cylinder with a rotating wheel on the top. The cylinder seat is fixed to the bottom of the cavity. The piston rod and the cylinder seat are slidably connected. The top of the piston rod is rotatably connected to the rotating wheel, which is used to contact the back of the support plate (42).

3. The mechanical hoist device according to claim 1, characterized in that, The pusher (43) includes a cam (431) and a motor. The motor is mounted on the side wall of the cavity. The output shaft of the motor is eccentrically fixedly connected to the cam (431). The cam (431) is used to contact the back of the support plate (42).

4. The mechanical hoist device according to claim 3, characterized in that, The pusher (43) also includes a lifting rod (432) and a roller (433). One end of the lifting rod (432) is rotatably connected to the inner wall of the cavity, and the other end of the lifting rod (432) is rotatably connected to the roller (433). The support plate (42) has a through hole (434), and the roller (433) can extend out from the through hole (434). The rotation center of the cam (431) and the rotation center of the lifting rod (432) are connected by a belt drive. The belt drive is equipped with a tensioning element. When the motor rotates, the roller (433) first passes through the through hole (434) and contacts the bottom of the tray, and then the cam (431) contacts the back of the support plate (42).

5. A mechanical hoist device according to claim 4, characterized in that, A pulley is fixedly connected to the rotation center of the cam (431), a pulley is fixedly connected to the rotation center of the lifting rod (432), one end of the tension rod (435) is elastically rotatably connected to the side wall of the chamber and the other end is rotatably connected to the tension wheel, and the transmission belt is simultaneously sleeved on the pulley, the pulley, and the tension wheel.

6. A mechanical hoist device according to claim 4, characterized in that, The rodless cylinder (20) includes a cylinder body and a piston end. The cylinder body is fixed on the profile of the rectangular frame (10), and the piston end is connected to a mounting plate by fasteners.

7. A mechanical hoist device according to claim 6, characterized in that, The hoist (30) includes a frame, a motor and a chain. The frame is connected to the mounting plate by fasteners. The motor is mounted on the frame. The support plate is vertically slidably connected to the frame. The sprocket and chain drive are fixedly connected to the output shaft of the motor. One section of the support plate and the sprocket are fixedly connected.

8. A mechanical hoist device according to claim 6, characterized in that, The rectangular frame (10) is equipped with a stopper to limit the upward movement distance of the piston end and the support plate, respectively.

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