A hoisting device for water conservancy and hydropower engineering

Abstract

The utility model belongs to hoisting equipment technical field especially relates to a hoisting equipment for water conservancy and hydropower engineering, it includes base, installs fixed column on base, installs the rotary connection rotary column on fixed column, the hydraulic telescopic link is installed at rotary column top, the one end of hydraulic telescopic link is connected with lifting assembly, installs the connecting plate on lifting assembly, the two limit boards of connecting plate bottom end sliding connection have, rotary column side is provided with the sliding slot and the sliding block of sliding connection in the inside of sliding slot, the telescopic link is connected between connecting plate and sliding block, the connecting plate of utility model as hoist building material's basic component, hydraulic telescopic link, lifting assembly and telescopic link, sliding block provide additional stability, effectively prevented hoisting system under the instability and torsion of complex working condition, can avoid in hoisting process, because connecting plate and other basic components are easy to shake, lead to the difficult problem that material is easy to shake in the air, promoted hoisting in place's precision and hoisting efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of hoisting equipment technology, and in particular relates to a hoisting equipment for water conservancy and hydropower projects. Background Technology

[0002] Water conservancy projects are a general term for various engineering constructions undertaken to control, utilize, and protect surface and underground water resources and the environment. In the construction of water conservancy and hydropower projects, various pipes and plates are essential building materials. In order to facilitate the construction work of workers, it is necessary to hoist these building materials.

[0003] Currently, when hoisting building materials for water conservancy and hydropower projects, hoisting equipment typically first ties the materials with ropes, then uses hooks on the hoisting equipment to connect to the ropes, and then lifts and moves the building materials. Because the hoisting equipment uses retractable steel cables for suspension, the materials will sway during the lifting and moving process, which is not conducive to the hoisting equipment accurately placing the materials in the required location, and the swaying of the suspended materials can also easily lead to dangerous situations.

[0004] This utility model designs a hoisting device for water conservancy and hydropower projects to solve the above problems. Utility Model Content

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A hoisting device for water conservancy and hydropower projects includes a base, a fixed column mounted on the base, a rotating column rotatably connected to the fixed column, a rotation drive assembly connected to the rotating column installed inside the fixed column, a hydraulic telescopic rod mounted at the top of the rotating column, a lifting assembly connected to one end of the hydraulic telescopic rod, a connecting plate mounted on the lifting assembly, two limit plates slidably connected to the bottom of the connecting plate, the two limit plates being symmetrically distributed at both ends of the connecting plate, a movable adjustment assembly connected to the limit plates installed inside the connecting plate, rubber pads installed on the inner side of the limit plates, a groove provided on the side of the rotating column and a slider slidably connected inside the groove, and a telescopic rod connecting the connecting plate and the slider.

[0006] As a preferred embodiment, the lifting assembly includes a fixed frame installed at one end of the hydraulic telescopic rod, a rotatably connected winding rod installed inside the fixed frame, a first motor connected to the winding rod on the fixed frame, a winding steel cable wound around the outer end of the winding rod, one end of the winding steel cable being fixedly connected to the outer end of the winding rod, and the other end of the winding steel cable being fixedly connected to the top of the connecting plate.

[0007] As a preferred embodiment, a hook is installed at the bottom of the connecting plate, with the hook located at the center of the connecting plate, and two limiting plates symmetrically distributed on both sides of the hook.

[0008] As a preferred embodiment, the movable adjustment assembly includes adjustment slots disposed at both ends of the connecting plate, with adjustment blocks slidably connected in the adjustment slots, and the two adjustment blocks respectively connected to two limit plates. A bidirectional lead screw is rotatably connected in the connecting plate, with both ends of the bidirectional lead screw extending into the two adjustment slots and threadedly connected to the two adjustment blocks. A second motor is mounted on the connecting plate and is poweredly connected to the bidirectional lead screw.

[0009] As a preferred embodiment, the rotary drive assembly includes a mounting cavity formed inside the fixed column, a third motor is installed inside the mounting cavity, the output end of the third motor is connected to a rotating rod, and the top end of the rotating rod passes through the fixed column and is fixedly connected to the rotating column.

[0010] As a preferred embodiment, the top of the fixed column is provided with an annular groove, which is located on the outside of the rotating rod, and the bottom of the rotating column is provided with an annular slider that extends into the annular groove.

[0011] As a preferred option, the base is provided with several bolt mounting holes.

[0012] Compared with existing technologies, the advantages of this utility model are: 1. The connecting plate of this utility model serves as a basic component for hoisting building materials. The connecting plate is connected to the rotating column by two types of structures: hydraulic telescopic rod, lifting assembly, and telescopic rod and slider. This provides additional stability and effectively prevents the hoisting system from becoming unstable and twisting under complex working conditions. Compared with the traditional single steel cable hoisting method, it can avoid the problem of materials easily swaying in the air due to the easy shaking of basic components such as the connecting plate during hoisting, thus improving the accuracy of hoisting and the efficiency of hoisting.

[0013] 2. The connecting plate of this utility model for hoisting materials can automatically adjust the distance between the two limiting plates according to the size of the materials, so as to achieve flexible clamping of the materials. During the hoisting process, it can prevent the materials from shaking relative to the connecting plate and other basic components, and can also play the role of anti-shaking. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the present invention.

[0015] Figure 2 This is a schematic diagram of the three-dimensional cross-sectional structure of the rotating column of this utility model.

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the lifting component of this utility model.

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of the connecting plate, limiting plate and adjusting component of this utility model.

[0018] Figure 5This is a schematic diagram of the three-dimensional cross-sectional structure of the fixed column and the rotating column of this utility model.

[0019] The following are the labels in the diagram: 1. Base; 2. Fixed column; 3. Rotating column; 4. Hydraulic telescopic rod; 5. Connecting plate; 6. Limiting plate; 7. Rubber pad; 8. Telescopic rod; 9. Slide groove; 10. Slider; 11. Fixed frame; 12. Winding rod; 13. First motor; 14. Winding steel cable; 15. Hook; 16. Adjusting groove; 17. Adjusting block; 18. Two-way lead screw; 19. Second motor; 20. Mounting cavity; 21. Third motor; 22. Rotating rod; 23. Annular slide groove; 24. Annular slider. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following embodiments or drawings are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0021] A hoisting device used in water conservancy and hydropower projects, such as Figures 1 to 5 As shown, the device includes a base 1, a fixed column 2 mounted on the base 1, a rotating column 3 rotatably connected to the fixed column 2, a rotary drive assembly connected to the rotating column 3 installed inside the fixed column 2, a hydraulic telescopic rod 4 mounted at the top of the rotating column 3, a lifting assembly connected to one end of the hydraulic telescopic rod 4, a connecting plate 5 mounted on the lifting assembly, two limit plates 6 slidably connected to the bottom of the connecting plate 5, the two limit plates 6 being symmetrically distributed at both ends of the connecting plate 5, a movable adjustment assembly connected to the limit plates 6 installed inside the connecting plate 5, a rubber pad 7 installed inside the limit plates 6, a groove 9 and a slider 10 slidably connected inside the groove 9 on the side of the rotating column 3, and a telescopic rod 8 connecting the connecting plate 5 and the slider 10.

[0022] The connecting plate 5 serves as the basic component for hoisting building materials. It is connected to the rotating column 3 by two types of structures: hydraulic telescopic rod 4, lifting assembly and telescopic rod 8, and slider 10. This provides additional stability and effectively prevents the hoisting system from becoming unstable and twisting under complex working conditions. Compared with the traditional single steel cable hoisting method, it can avoid the problem of materials swaying in the air due to the easy shaking of basic components such as the connecting plate 5 during hoisting, thus improving the accuracy of hoisting and the efficiency of hoisting. The connecting plate 5, which is hoisted with materials, can automatically adjust the distance between the two limiting plates 6 according to the size of the materials, so as to achieve flexible clamping of the materials. During the hoisting process, it can prevent the materials from shaking relative to the connecting plate 5 and other basic components, and can also play the role of anti-shaking.

[0023] like Figure 3 and Figure 4As shown, the lifting assembly includes a fixed frame 11 installed at one end of the hydraulic telescopic rod 4. A rotatably connected winding rod 12 is installed inside the fixed frame 11. A first motor 13, which is poweredly connected to the winding rod 12, is installed on the fixed frame 11. A winding steel cable 14 is wound around the outer end of the winding rod 12. One end of the winding steel cable 14 is fixedly connected to the outer end of the winding rod 12, and the other end of the winding steel cable 14 is fixedly connected to the top of the connecting plate 5.

[0024] The first motor 13 is used to control the rotation of the winding rod 12. The rotation of the winding rod 12 controls the winding and unwinding of the steel cable 14, thereby controlling the lifting and lowering of the connecting plate 5.

[0025] like Figure 4 As shown, a hook 15 is installed at the bottom of the connecting plate 5. The hook 15 is located at the center of the connecting plate 5, and two limiting plates 6 are symmetrically distributed on both sides of the hook 15.

[0026] As one of the lifting components of the connecting plate 5, the hook 15 allows materials to be suspended below the connecting plate 5 via steel cables or other structures, and the limiting plate 6 clamps the materials to ensure that the materials do not sway relative to the connecting plate 5 during the lifting process.

[0027] like Figure 4 As shown, the movable adjustment assembly includes adjustment grooves 16 at both ends of the connecting plate 5, adjustment blocks 17 are slidably connected in the adjustment grooves 16, the two adjustment blocks 17 are respectively connected to the two limit plates 6, a bidirectional lead screw 18 is rotatably connected in the connecting plate 5, the two ends of the bidirectional lead screw 18 extend into the two adjustment grooves 16 respectively and are threadedly connected to the two adjustment blocks 17, and a second motor 19 is installed on the connecting plate 5 and is poweredly connected to the bidirectional lead screw 18.

[0028] Both ends of the bidirectional lead screw 18 are connected to the two adjusting blocks 17 by threads, and the threads at both ends of the bidirectional lead screw 18 are in opposite directions. The second motor 19 is used to control the rotation of the bidirectional lead screw 18. For example, when the bidirectional lead screw 18 rotates clockwise, the two adjusting blocks 17 will move toward each other. When the bidirectional lead screw 18 rotates counterclockwise, the two adjusting blocks 17 will move away from each other.

[0029] like Figure 1 and Figure 5 As shown, the rotary drive assembly includes a mounting cavity 20 opened inside the fixed column 2. A third motor 21 is installed in the mounting cavity 20. The output end of the third motor 21 is connected to a rotating rod 22. The top end of the rotating rod 22 passes through the fixed column 2 and is fixedly connected to the rotating column 3.

[0030] The third motor 21 is used to control the rotation of the rotating column 3, which can drive the rotating column 3 to rotate relative to the fixed column 2, thereby controlling the material to rotate around the fixed column 2.

[0031] like Figure 5As shown, the top of the fixed column 2 is provided with an annular groove 23, which is located outside the rotating rod 22. The bottom of the rotating column 3 is provided with an annular slider 24, which extends into the annular groove 23.

[0032] The cooperation between the annular slider 24 and the annular groove 23 can enhance the stability of the connection between the rotating column 3 and the fixed column 2, ensure the smoothness of horizontal rotation, and will not affect the rotation of the rotating column 3 relative to the fixed column 2.

[0033] The base 1 has multiple bolt mounting holes. The base 1 is fixed to the ground by bolts through the bolt mounting holes.

[0034] All electrical components of this equipment are powered and controlled by an external industrial power grid (380V three-phase AC) through a dedicated distribution box. The distribution box integrates circuit breakers, contactors, overload protectors, and power modules for each motor drive. Operation is controlled via a remote wireless controller with an emergency stop button, allowing the operator to control all actions from a safe distance.

[0035] Model numbers and power supply methods of each electrical component: First motor 13: It adopts a YE3 series three-phase asynchronous motor, model YE3-132M-4 (7.5kW), which is directly driven by 380V three-phase AC power. The on and off of its AC contactor and the forward and reverse rotation are controlled by remote control signal to realize the forward and reverse rotation of the winding rod 12.

[0036] The second motor 19 is a GM series small three-phase asynchronous geared motor, model GM-20-400 (0.75kW), which is directly driven by 380V three-phase AC power. Its forward and reverse rotation is controlled by remote control, thereby precisely driving the bidirectional lead screw 18.

[0037] The third motor 21 is a YE3 series three-phase asynchronous motor, model YE3-112M-4 (4kW), which is directly driven by 380V three-phase AC power. The opening and closing of its AC contactor is controlled by a remote control, which drives the rotating rod 22 to rotate forward and backward.

[0038] Hydraulic telescopic mast 4: Its hydraulic pump station motor adopts a YE3 series three-phase asynchronous motor, model YE3-100L-4 (3kW), driven by 380V three-phase AC power. The solenoid directional valve of the hydraulic system (controlling the extension and retraction of the telescopic mast) is powered by a 24V DC power supply in the distribution box and controlled by a remote control.

[0039] The key moving parts used for lifting, rotating, and limit adjustment are all directly driven by reliable three-phase asynchronous motors, which are powerful and easy to maintain.

[0040] The inner wall of the slide groove 9 is T-shaped, the slider 10 is T-shaped to match the inner wall of the slide groove 9, the inner wall of the adjusting groove 16 is T-shaped, and the adjusting block 17 is T-shaped to match the inner wall of the adjusting groove 16. The T-shaped structure provides additional stability and effectively prevents the hoisting system from becoming unstable and twisting under complex working conditions.

[0041] This equipment highly integrates multiple functions such as lifting, horizontal rotation, boom luffing, and material limiting, and is centrally controlled through a unified industrial power supply and wireless remote control system. Operators can remotely complete all complex actions from a safe position. The operation process is simple and intuitive, with a high degree of automation and low labor intensity, making it excellently adaptable to the demanding and diverse hoisting needs of water conservancy and hydropower engineering construction sites.

[0042] The selected YE3 series motors are highly efficient and have excellent starting torque, making them capable of handling heavy-duty lifting. The hydraulic system provides smooth, linear power to the telescopic boom. This power configuration enables the equipment to stably lift a variety of construction materials for water conservancy and hydropower projects, ranging from lightweight pipes to heavy precast components.

[0043] Working principle: When using the equipment, first secure it to the ground using the bolt mounting holes on base 1, and then connect it to an external 380V power supply.

[0044] The hoisting operation process is as follows: 1. Lowering the hook: The operator starts the first motor 13 via remote control, which drives the winding rod 12 to rotate, releasing the winding steel cable 14, so that the connecting plate 5 and the hook 15 below it descend smoothly.

[0045] 2. Suspending materials: The pipes, plates and other building materials that need to be hoisted are suspended on the hooks 15 at the bottom of the connecting plate 5 by hoisting straps or wire ropes.

[0046] 3. Lifting and Limiting: The first motor 13 is reversed again via remote control to rewind the steel cable 14, lifting the building material to the predetermined height. During or after lifting, if it is necessary to prevent material swaying, the operator remotely starts the second motor 19, which drives the bidirectional lead screw 18 to rotate. Because the threads at both ends of the bidirectional lead screw 18 are opposite in direction, the two adjusting blocks 17 move synchronously towards each other within the adjusting groove 16, thereby causing the two limiting plates 6 to approach the lifted building material until the rubber pads 7 on their inner sides gently and firmly adhere to and clamp the sides of the building material. The rubber pads 7 provide sufficient friction and prevent scratching the material surface.

[0047] 4. Steering and Luffing: When the hoisting position needs to be adjusted, the third motor 21 is energized, driving the rotating rod 22 to rotate, which in turn drives the entire rotating column 3, hydraulic telescopic rod 4, and hoisted building materials to rotate precisely horizontally. Simultaneously, the electromagnetic reversing valve of the hydraulic telescopic rod 4 can be controlled via remote control to extend or retract the rod, thereby adjusting the working radius.

[0048] 5. Stability Guarantee: Throughout the lifting, turning, and luffing processes, the telescopic rod 8, fixedly connected to the connecting plate 5, extends and retracts accordingly. The telescopic rod 8 is a current technology, made of lightweight materials, and its end slider 10 slides smoothly within the groove 9 of the rotating column 3. This design provides strong lateral support and reliable guidance for the connecting plate 5, effectively counteracting any swaying and rotational torque that may be generated by the hoisted object.

[0049] 6. Precise Positioning: Through the combination of the above operations, the building materials are moved and placed stably and precisely at the target location.

[0050] This invention utilizes a movable adjustment component precisely driven by a second motor 19 to automatically adjust the distance between two limiting plates 6 with rubber pads 7 according to the material size, achieving flexible clamping of the material, further enhanced by the limiting effect of the telescopic rod 8. This solves the problem of materials easily swaying in the air during traditional hoisting, improving the accuracy and efficiency of hoisting and positioning, while significantly reducing safety risks such as collisions and falls caused by swaying. Specifically, this invention addresses the problem in existing hoisting equipment used for building materials in water conservancy and hydropower projects. Typically, the material is first tied with ropes, then connected to the ropes using hooks 15 on the hoisting equipment, and then lifted and moved. Since hoisting equipment often uses retractable steel cables for suspension, the material sways during lifting and movement, making it difficult for the hoisting equipment to accurately place the material at the required location, and the swaying of the suspended material can easily lead to dangerous situations.

[0051] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A hoisting device for water conservancy and hydropower projects, characterized in that: The system includes a base (1), on which a fixed column (2) is installed. A rotating column (3) is rotatably connected to the fixed column (2). A rotating drive assembly connected to the rotating column (3) is installed inside the fixed column (2). A hydraulic telescopic rod (4) is installed at the top of the rotating column (3). A lifting assembly is connected to one end of the hydraulic telescopic rod (4). A connecting plate (5) is installed on the lifting assembly. Two limit plates (6) are slidably connected to the bottom of the connecting plate (5). The two limit plates (6) are symmetrically distributed at both ends of the connecting plate (5). A movable adjustment assembly connected to the limit plates (6) is installed inside the connecting plate (5). A rubber pad (7) is installed on the inner side of the limit plates (6). A groove (9) and a slider (10) slidably connected inside the groove (9) are provided on the side of the rotating column (3). A telescopic rod (8) is connected between the connecting plate (5) and the slider (10).

2. The hoisting equipment for water conservancy and hydropower projects according to claim 1, characterized in that: The lifting assembly includes a fixed frame (11) installed at one end of the hydraulic telescopic rod (4), a rotating winding rod (12) installed inside the fixed frame (11), a first motor (13) connected to the winding rod (12) installed on the fixed frame (11), a winding steel cable (14) wound around the outer end of the winding rod (12), one end of the winding steel cable (14) being fixedly connected to the outer end of the winding rod (12), and the other end of the winding steel cable (14) being fixedly connected to the top of the connecting plate (5).

3. The hoisting equipment for water conservancy and hydropower projects according to claim 1, characterized in that: The bottom end of the connecting plate (5) is equipped with a hook (15), which is located at the center of the connecting plate (5). Two limiting plates (6) are symmetrically distributed on both sides of the hook (15).

4. The hoisting equipment for water conservancy and hydropower projects according to claim 3, characterized in that: The movable adjustment assembly includes adjustment grooves (16) at both ends of the connecting plate (5), adjustment blocks (17) are slidably connected in the adjustment grooves (16), the two adjustment blocks (17) are respectively connected to the two limit plates (6), a bidirectional lead screw (18) is installed in the connecting plate (5), the two ends of the bidirectional lead screw (18) extend into the two adjustment grooves (16) and are threadedly connected to the two adjustment blocks (17), and a second motor (19) is installed on the connecting plate (5) and is poweredly connected to the bidirectional lead screw (18).

5. The hoisting equipment for water conservancy and hydropower projects according to claim 1, characterized in that: The rotary drive assembly includes a mounting cavity (20) opened inside the fixed column (2), a third motor (21) is installed in the mounting cavity (20), the output end of the third motor (21) is connected to a rotating rod (22), the top end of the rotating rod (22) passes through the fixed column (2) and is fixedly connected to the rotating column (3).

6. The hoisting equipment for water conservancy and hydropower projects according to claim 5, characterized in that: The top of the fixed column (2) is provided with an annular groove (23), which is located outside the rotating rod (22). The bottom of the rotating column (3) is provided with an annular slider (24), which extends into the annular groove (23).

7. The hoisting equipment for water conservancy and hydropower projects according to claim 1, characterized in that: The base (1) has several bolt mounting holes.

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