A hoist protection device
By introducing a lubrication structure, Hall sensor, and brake block protection device into the gate hoist, the problem of gate falling due to cable breakage was solved, and cable lubrication and timely alarm locking were achieved, thus improving the safety and reliability of the gate hoist.
Patent Information
- Application Number
- CN202522137199.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-10
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-10
AI Technical Summary
The steel cables of winch-type gate hoists are prone to wear and corrosion during long-term use, which can lead to breakage and pose a safety hazard of gate falling. In addition, manual maintenance is not timely or comprehensive enough.
A gate hoist protection device was designed, comprising a lubrication structure, a Hall sensor, and a brake block. The lubrication structure lubricates the steel cable, the Hall sensor detects cable breakage and triggers an alarm, and the brake block locks the steel cable when a breakage is detected to prevent the gate from falling.
It effectively reduces wear and corrosion of the steel cable, provides timely alarms and locks the steel cable, reduces the risk of the gate falling unexpectedly, and improves the safety and reliability of the gate hoist.
Smart Images
Figure CN224678633U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gate hoist technology, specifically a gate hoist protection device. Background Technology
[0002] Gate hoists are mechanical devices used to control the raising and lowering of various gates in water conservancy projects. They are mainly used in large-scale water supply and drainage, water conservancy and hydropower projects to realize the opening and closing of water flow. Gate hoists are widely used in reservoirs, rivers, irrigation areas and other scenarios, and are an indispensable key component in water conservancy facilities.
[0003] The winch-type gate hoist is a common type of gate hoist. It uses an electric motor to drive a reducer, which rotates the drum, causing the steel cable to wind or unwind, thus pulling the gate to raise or lower it. However, the steel cable is prone to wear and tear during prolonged winding and friction, and corrosion can easily lead to wire breakage, causing the gate to fall and posing a significant safety hazard. Manual maintenance is typically done periodically, but time is limited, and oversights are common. Therefore, we propose a gate hoist protection device. Utility Model Content
[0004] The purpose of this utility model is to provide a gate hoist protection device to solve the problem mentioned in the background art of gate falling due to the risk of steel cable breakage.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a gate hoist protection device, comprising a gate hoist housing, a drum installed inside the gate hoist housing, and a steel cable wound around the surface of the drum; a geared motor installed inside the gate hoist housing on one side of the drum, and the output end of the geared motor fixedly connected to the drum; a protective frame fixed inside the gate hoist housing below the drum; a protective slide seat provided inside the protective frame; the steel cable passing through the protective slide seat; roller grooves provided on both sides inside the protective slide seat, and guide rollers installed inside the roller grooves, the guide rollers being in close contact with the steel cable; an inclined hole provided inside the protective slide seat on one side of the roller groove, the inclined hole communicating with the roller groove; a lubrication structure provided on both sides of the protective slide seat, the lubrication structure including an oil storage bottle, an oil drain pipe, and an inclined branch pipe; the oil storage bottle being installed on the outer walls of both sides of the protective slide seat; the oil drain pipe being installed at the bottom end of the oil storage bottle; the inclined branch pipe being installed on the outer wall of the oil drain pipe, and the inclined branch pipe extending into the interior of the inclined hole.
[0006] Preferably, a small motor is installed at one end inside the protective frame, and a reciprocating lead screw is installed at the output end of the small motor, and the protective slide engages with the reciprocating lead screw.
[0007] Preferably, an upper Hall sensor is installed at the top of the protective slide, and a lower Hall sensor is installed at the bottom of the protective slide, with the steel cable passing through the upper Hall sensor and the lower Hall sensor.
[0008] Preferably, the lubrication structure further includes a control valve, which is installed at the connection between the oil drain pipe and the oil reservoir.
[0009] Preferably, the surface of the protective slide is provided with a positioning baffle, and the corner of the positioning baffle is fixedly connected to the protective slide by bolts.
[0010] Preferably, two sets of cylinders are installed on the outer wall of the positioning baffle, and the output end of the cylinder passes through the positioning baffle and is fixed with a brake clamp.
[0011] Preferably, a friction pad is fixed to the surface of the brake clamp block, and both the friction pad and the surface of the brake clamp block are provided with an arc surface.
[0012] Preferably, a controller is installed inside the hoist housing below the geared motor, and an alarm is installed on the outer wall of one side of the hoist housing. The alarm is connected to the controller via a wire.
[0013] Compared with the prior art, the beneficial effects of this utility model are: Lubricating oil is added to the steel cable through a lubrication structure. The lubricating oil inside the oil reservoir is discharged from the oil drain pipe and enters the roller groove through the inclined branch pipe. As the guide roller rotates, it picks up the lubricating oil and spreads it onto the steel cable, thus lubricating the steel cable. The lubricating oil can form a continuous oil film on the surface of the steel cable, converting the dry friction between metals into liquid friction, reducing the coefficient of friction. The oil film can also isolate air and moisture, effectively blocking the contact between the steel cable and corrosive media. In addition, the lubrication process can wash away hard particles such as mud, sand, and iron filings on the surface of the steel cable, preventing particles from embedding and causing wire breakage. The lubricating oil can also absorb frictional heat, and through self-lubrication, it can protect the steel cable and slow down the aging rate. The steel cable is detected by upper and lower Hall sensors. When a break in the steel wire inside the cable is detected, the abnormal magnetic field outputs an alarm signal. The controller then controls the alarm to sound an alarm and remind the staff to replace the steel cable. The controller stops the geared motor and simultaneously triggers the cylinder to extend the brake clamp. The brake clamp presses against the steel cable through the friction pad to lock the steel cable. The arc surface design makes the brake clamp and friction pad fit the steel cable more closely, with a larger contact area and a more reliable lock. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model; Figure 2This is an enlarged structural diagram of the protective slide of this utility model; Figure 3 This is an enlarged schematic diagram of the lubrication structure of this utility model; Figure 4 This is a rear enlarged structural schematic diagram of the positioning baffle of this utility model; Figure 5 This is a three-dimensional enlarged structural diagram of the positioning baffle of this utility model.
[0015] In the diagram: 1. Hoist housing; 2. Drum; 3. Steel cable; 4. Gear motor; 5. Alarm; 6. Controller; 7. Protective frame; 8. Small motor; 9. Reciprocating screw; 10. Protective slide; 1001. Positioning baffle; 11. Roller groove; 12. Guide roller; 13. Inclined hole; 14. Upper Hall sensor; 15. Lubrication structure; 16. Lower Hall sensor; 17. Oil reservoir; 18. Oil drain pipe; 19. Inclined branch pipe; 20. Control valve; 21. Cylinder; 22. Brake block; 23. Friction plate; 24. Arc surface. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of this utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0017] 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. 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 scope of protection of the present utility model.
[0018] Please see Figure 1-5 An embodiment of this utility model is provided: a gate hoist protection device, including a gate hoist housing 1, a drum 2 installed inside the gate hoist housing 1, and a steel cable 3 wound around the surface of the drum 2. A geared motor 4 is installed inside the gate hoist housing 1 on one side of the drum 2, and the output end of the geared motor 4 is fixedly connected to the drum 2. Inside the hoist housing 1 below the drum 2, a protective frame 7 is fixed. Inside the protective frame 7, a protective slide 10 is provided. The steel cable 3 passes through the protective slide 10. Roller grooves 11 are provided on both sides inside the protective slide 10, and guide rollers 12 are installed inside the roller grooves 11. The guide rollers 12 are tightly fitted with the steel cable 3. An inclined hole 13 is provided inside the protective slide 10 on one side of the roller groove 11, and the inclined hole 13 communicates with the roller groove 11. The protective slide 10 is provided with a lubrication structure 15 on both sides. The lubrication structure 15 includes an oil storage bottle 17, an oil drain pipe 18, and an inclined branch pipe 19. The oil storage bottle 17 is installed on the outer wall of both sides of the protective slide 10, the oil drain pipe 18 is installed at the bottom of the oil storage bottle 17, and the inclined branch pipe 19 is installed on the outer wall of the oil drain pipe 18. The inclined branch pipe 19 extends into the interior of the inclined hole 13. Specifically, see the attached document. Figure 1-3 When the steel cable 3 moves inside the protective slide 10, the guide roller 12 inside the roller groove 11 guides the steel cable 3. Lubricating oil is added to the steel cable 3 through the lubrication structure 15. Specifically, the lubricating oil inside the oil reservoir 17 is discharged from the oil drain pipe 18 and enters the roller groove 11 through the inclined branch pipe 19. The guide roller 12 picks up the lubricating oil during rotation and spreads it on the steel cable 3, thus lubricating the steel cable 3. The lubricating oil can form a continuous oil film on the surface of the steel cable 3, which transforms the dry friction between metals into liquid friction, reducing the coefficient of friction. The oil film can also isolate air and moisture, effectively blocking the contact between the steel cable 3 and the corrosive medium. In addition, the lubrication process can wash away hard particles such as mud, sand and iron filings on the surface of the steel cable 3, preventing particles from embedding and causing wire breakage. The lubricating oil can also absorb frictional heat. Through self-lubrication, it can protect the steel cable 3 and slow down the aging rate. A small motor 8 is installed at one end inside the protective frame 7, and a reciprocating screw 9 is installed at the output end of the small motor 8. The protective slide 10 meshes with the reciprocating screw 9. Specifically, the geared motor 4 drives the drum 2 to rotate, causing the steel cable 3 to wind or release, thereby pulling the gate to complete the lifting action. During this process, the small motor 8 drives the reciprocating screw 9 to rotate, causing the protective slide 10 to reciprocate along the reciprocating screw 9. The protective slide 10 guides the steel cable 3 to wind or release it in sequence. The top of the protective slide 10 is equipped with an upper Hall sensor 14, and the bottom of the protective slide 10 is equipped with a lower Hall sensor 16. The steel cable 3 passes through the upper Hall sensor 14 and the lower Hall sensor 16. Specifically, see the attached document. Figure 2 The upper Hall sensor 14 and the lower Hall sensor 16 detect the steel cable 3. When the steel wire inside the steel cable 3 is broken, the abnormal magnetic field outputs an alarm signal. The controller 6 controls the alarm 5 to sound an alarm and remind the staff to replace the steel cable 3. The lubrication structure 15 also includes a control valve 20, which is installed at the connection between the oil drain pipe 18 and the oil reservoir 17. The surface of the protective slide 10 is provided with a positioning baffle 1001, and the corner of the positioning baffle 1001 is fixedly connected to the protective slide 10 by bolts. Two sets of cylinders 21 are installed on the outer wall of the positioning baffle 1001, and the output end of the cylinder 21 passes through the positioning baffle 1001 and is fixed with a brake clamp 22. The surface of the brake block 22 is fixed with a friction plate 23, and both the surface of the friction plate 23 and the surface of the brake block 22 are provided with an arc surface 24; Specifically, see the attached document. Figure 4 and 5 When a large number of broken steel wires are detected, the controller 6 controls the reduction motor 4 to stop, and at the same time triggers the cylinder 21 to drive the brake block 22 to extend. The brake block 22 presses against the steel cable 3 through the friction plate 23 to lock the steel cable 3. The arc surface 24 makes the brake block 22 and the friction plate 23 fit more closely with the steel cable 3, with a larger contact area and a more reliable lock, thereby facilitating the safety protection of the hoist and reducing the risk of the gate falling accidentally. A controller 6 is installed inside the hoist housing 1 below the geared motor 4. An alarm 5 is installed on the outer wall of one side of the hoist housing 1. The alarm 5 is connected to the controller 6 through a wire.
[0019] In this embodiment, the following steps are taken: First, the geared motor 4 drives the drum 2 to rotate, causing the steel cable 3 to wind or release, thereby pulling the gate to complete the lifting action. During this process, the small motor 8 drives the reciprocating screw 9 to rotate, causing the protective slide 10 to reciprocate along the reciprocating screw 9. The protective slide 10 guides the steel cable 3, allowing it to wind or release sequentially. As the steel cable 3 moves inside the protective slide 10, the guide roller 12 inside the roller groove 11 guides the steel cable 3. Lubricating oil is added to the steel cable 3 through the lubrication structure 15. Specifically, the lubricating oil inside the oil reservoir 17 is discharged from the oil drain pipe 18 and enters the roller groove 11 through the inclined branch pipe 19. The guide roller 12 picks up the lubricating oil during rotation and applies it to the steel cable 3, thus lubricating the steel cable 3. The lubricating oil can form a continuous oil film on the surface of the steel cable 3, converting the dry friction between metals into liquid friction, reducing the coefficient of friction. The oil film can also isolate air and moisture, effectively blocking the steel cable 3. In addition to contact with corrosive media, the lubrication process can wash away hard particles such as mud, sand, and iron filings on the surface of the steel cable 3, preventing particles from embedding and causing wire breakage. The lubricating oil can also absorb frictional heat, and through self-lubrication, it can protect the steel cable 3 and slow down the aging rate. Then, the upper Hall sensor 14 and the lower Hall sensor 16 detect the steel cable 3. When the internal steel wire of the steel cable 3 is detected to be broken, the abnormal magnetic field outputs an alarm signal. The controller 6 controls the alarm 5 to sound an alarm, reminding the staff to replace the steel cable 3. When a large number of broken steel wires are detected, the controller 6 controls the reduction motor 4 to stop, and at the same time triggers the cylinder 21 to drive the brake clamp 22 to extend. The brake clamp 22 presses against the steel cable 3 through the friction plate 23 to lock the steel cable 3. The setting of the arc surface 24 makes the brake clamp 22 and the friction plate 23 fit more closely to the steel cable 3, with a larger contact area and a more reliable lock, thereby facilitating the safety protection of the hoist and reducing the risk of the gate falling accidentally.
[0020] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
Claims
1. A gate hoist protection device, comprising a gate hoist housing (1), characterized in that, The hoist housing (1) is equipped with a drum (2), and a steel cable (3) is wound around the surface of the drum (2). A geared motor (4) is installed inside the hoist housing (1) on one side of the drum (2), and the output end of the geared motor (4) is fixedly connected to the drum (2). A protective frame (7) is fixed inside the hoist housing (1) below the drum (2). A protective slide (10) is provided inside the protective frame (7). The steel cable (3) passes through the protective slide (10). Roller grooves (11) are provided on both sides inside the protective slide (10), and guide rollers (12) are installed inside the roller grooves (11). The roller (12) is tightly fitted to the steel cable (3). An inclined hole (13) is provided inside the protective slide (10) on one side of the roller groove (11). The inclined hole (13) is connected to the roller groove (11). A lubrication structure (15) is provided on both sides of the protective slide (10). The lubrication structure (15) includes an oil storage bottle (17), an oil drain pipe (18), and an inclined branch pipe (19). The oil storage bottle (17) is installed on the outer wall on both sides of the protective slide (10). The oil drain pipe (18) is installed at the bottom of the oil storage bottle (17). The inclined branch pipe (19) is installed on the outer wall of the oil drain pipe (18). The inclined branch pipe (19) extends into the interior of the inclined hole (13).
2. The gate hoist protection device according to claim 1, characterized in that: A small motor (8) is installed at one end inside the protective frame (7), and a reciprocating screw (9) is installed at the output end of the small motor (8). The protective slide (10) meshes with the reciprocating screw (9).
3. The gate hoist protection device according to claim 1, characterized in that: The top of the protective slide (10) is equipped with an upper Hall sensor (14), and the bottom of the protective slide (10) is equipped with a lower Hall sensor (16). The steel cable (3) passes through the upper Hall sensor (14) and the lower Hall sensor (16).
4. The gate hoist protection device according to claim 1, characterized in that: The lubrication structure (15) also includes a control valve (20), which is installed at the connection between the oil drain pipe (18) and the oil reservoir (17).
5. The gate hoist protection device according to claim 1, characterized in that: The surface of the protective slide (10) is provided with a positioning baffle (1001), and the corner of the positioning baffle (1001) is fixedly connected to the protective slide (10) by bolts.
6. The hoist protection device according to claim 5, characterized in that: Two sets of cylinders (21) are installed on the outer wall of the positioning baffle (1001), and the output end of the cylinder (21) passes through the positioning baffle (1001) and is fixed with a brake clamp (22).
7. A gate hoist protection device according to claim 6, characterized in that: The surface of the brake clamp (22) is fixed with a friction plate (23), and both the surface of the friction plate (23) and the surface of the brake clamp (22) are provided with an arc surface (24).
8. The gate hoist protection device according to claim 1, characterized in that: A controller (6) is installed inside the gate hoist housing (1) below the geared motor (4). An alarm (5) is installed on the outer wall of one side of the gate hoist housing (1). The alarm (5) is connected to the controller (6) through a wire.