Safety type double-output winch lifting device

Abstract

The utility model relates to the technical field of winch lifting devices, and discloses a safety type double-output winch lifting device which comprises a bottom plate, a plurality of fixing plates are fixedly connected to the side face of the bottom plate, first shells are fixedly connected to the side faces of the two fixing plates, and driving assemblies are arranged on the inner sides of the two first shells. Second shells are fixedly connected to the side faces of the other two fixing plates, clamping assemblies are arranged on the inner sides of the second shells, a plurality of supporting plates are fixedly connected to the side face of the bottom plate, and reciprocating limiting assemblies are arranged on the side faces of the two supporting plates. According to the rope limiting device, the sliding groove lead screw is matched with the limiting rod, the limiting block can move in the direction of the limiting rod, the clamping block moves on the surface of the sliding groove lead screw along with the limiting block, meanwhile, height adjustment of the limiting ring is achieved through the hole shell and the hole plate through the fixing bolt, and therefore the rope is accurately limited. The position of the clamping block on the sliding groove lead screw can be accurately controlled through a groove in the surface of the sliding groove lead screw.

Description

A safe dual-output winch hoisting device Technical Field

[0001] This utility model relates to the technical field of winch hoisting devices, and in particular to a safe dual-output winch hoisting device. Background Technology

[0002] The safety-type dual-output winch hoisting device is a lifting equipment designed with "dual power output structure" and "multiple safety protection mechanisms" as its core. It is mainly used to achieve vertical lifting, lowering or horizontal traction of heavy objects through rope winding and unwinding.

[0003] The winches currently in use directly drive the drum to rotate and thus wind up and unwind the rope. The drive components act directly on the drum, eliminating transmission chain gaps. The drum speed can follow the motor output in real time during start-up and shutdown, making it suitable for scenarios requiring frequent start-stop or precise speed control. The device eliminates complex transmission components, greatly simplifies the mechanical structure, reduces the number of parts, and lowers assembly difficulty and manufacturing costs.

[0004] While direct drive allows for rapid rope winding and unwinding via the drum, it lacks control over the rope's trajectory on the drum, leading to issues like overlapping, oblique winding, or localized accumulation. Uneven pressure on the rope accelerates outer layer wear and can even damage the fiber structure due to frictional heat, shortening its lifespan. In severe cases, it can cause the rope to jam or break. Therefore, a safe dual-output winch hoisting device is proposed to address these problems. Summary of the Invention

[0005] To overcome the above deficiencies, this utility model provides a safe dual-output winch hoisting device, which aims to improve the problem that the existing technology cannot effectively prevent deviations in the rope during winding and unwinding.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A safe dual-output winch lifting device includes a base plate, with multiple fixed plates fixedly connected to the side of the base plate. A first housing is fixedly connected to the side of two of the fixed plates, and a drive assembly is provided inside the two first housings. A second housing is fixedly connected to the side of the other two fixed plates, and a snap-fit ​​assembly is provided inside the second housing. Multiple support plates are fixedly connected to the side of the base plate, and reciprocating limit assemblies are provided on the side of two of the support plates.

[0008] The reciprocating limiting assembly includes a sliding screw rod, which is rotatably connected to the sides of the two support plates. Two limiting rods are fixedly connected to the top of the two support plates. Limiting blocks are slidably connected to the outer sides of the two limiting rods. A locking block is fixedly connected to the bottom of the limiting block. The sliding screw rod is rotatably connected to the inner side of the locking block.

[0009] As a further description of the above technical solution:

[0010] The reciprocating limiting assembly also includes a perforated shell, which is fixedly connected to the side of the limiting block. A perforated plate is slidably connected to the inner side of the perforated shell. Fixing bolts are provided on the inner sides of the corresponding holes of the perforated shell and the perforated plate. A limiting ring is fixedly connected to the top of the perforated plate.

[0011] As a further description of the above technical solution:

[0012] The snap-fit ​​assembly includes two ratchet wheels, which are rotatably connected to the side of the fixed plate and the second housing. The two ratchet wheels are hinged to each other, and a connecting rod is fixedly connected to the inner side of each ratchet wheel.

[0013] As a further description of the above technical solution:

[0014] The snap-fit ​​assembly also includes a spring push rod, which is fixedly connected to the inner side of the second housing. A pawl is fixedly connected to the end of the spring push rod, and the pawl snaps onto the outer side of the ratchet. A spring is sleeved on the outer side of the spring push rod, and a pressing plate is fixedly connected to the side of the pawl. The pressing plate is slidably connected to the inner side of the second housing.

[0015] As a further description of the above technical solution:

[0016] The drive assembly includes two gears, both of which are rotatably connected to the side of the fixed plate and the outer casing, and the two gears mesh with each other. Two connecting rods are rotatably connected to the inner side of the multiple fixed plates, and rollers are fixedly connected to the outer sides of both ends of the two connecting rods. The two gears are respectively fixedly connected to the ends of the two connecting rods.

[0017] As a further description of the above technical solution:

[0018] A second drive motor is fixedly connected to the outer side of the outer casing, and one of the gears is fixedly connected to the output end of the second drive motor.

[0019] As a further description of the above technical solution:

[0020] A fixing block is fixedly connected to the side of the base plate, and a double-headed motor is fixedly connected to the inside of the fixing block. A fixing rod is fixedly connected to each of the two output ends of the double-headed motor, and the two fixing rods are respectively fixedly connected to the sides of the two sliding screw rods.

[0021] As a further description of the above technical solution:

[0022] A drive motor is fixedly connected to the side of the base plate, and a speed reducer is fixedly connected to the outer side of the base plate. The speed reducer is fixedly connected to the output end of the drive motor. Two support frames are fixedly connected to the side of the base plate. Rollers are rotatably connected to the inner side of each of the two support frames. The ends of the two rollers are fixedly connected to the two output ends of the speed reducer.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, through the cooperation of the sliding screw and the limiting rod, the limiting block can move along the direction of the limiting rod, and the locking block moves accordingly on the surface of the sliding screw. At the same time, the height of the limiting ring is adjusted by fixing bolts between the hole shell and the hole plate, thereby precisely limiting the rope. The groove on the surface of the sliding screw can precisely control the position of the locking block on the sliding screw, ensuring that the lifted object stops accurately at the specified height and avoiding positional deviations caused by inertia.

[0025] 2. In this invention, with the ratchet and pawl working together, the spring pusher pushes the pawl to lock onto the ratchet via a spring. Pressing the press plate allows for manual release of the pawl. The one-way locking design of the pawl and ratchet prevents the lifted object from rotating in the opposite direction due to gravity or external force, avoiding the risk of rope slack or falling. The automatic locking function of the spring pusher can instantly lock the ratchet in case of drive motor failure or power failure, achieving emergency braking and ensuring operational safety. Attached Figure Description

[0026] Figure 1 is a three-dimensional schematic diagram of a safe dual-output winch hoisting device proposed in this utility model;

[0027] Figure 2 is a schematic diagram of the structure of the roller wheel of a safety-type dual-output winch hoisting device proposed in this utility model;

[0028] Figure 3 is a schematic diagram of the slide screw of a safety-type dual-output winch lifting device proposed in this utility model;

[0029] Figure 4 is a schematic diagram of the ratchet structure of a safety-type dual-output winch lifting device proposed in this utility model;

[0030] Figure 5 is a schematic diagram of the gear structure of a safety-type dual-output winch hoisting device proposed in this utility model;

[0031] Figure 6 is a structural schematic diagram of the limiting block of a safety-type dual-output winch lifting device proposed in this utility model;

[0032] Figure 7 is a schematic diagram of the pawl structure of a safety-type dual-output winch lifting device proposed in this utility model.

[0033] Legend:

[0034] 1. Base plate; 2. Drive motor one; 3. Reducer; 4. Roller; 5. Support frame; 6. Outer shell one; 7. Roller wheel; 8. Fixing plate; 9. Pressing plate; 10. Connecting rod; 11. Outer shell two; 12. Ratchet; 13. Pawl; 14. Drive motor two; 15. Gear; 16. Dual-head motor; 17. Fixing block; 18. Support plate; 19. Locking block; 20. Fixing rod; 21. Screw rod with sliding groove; 22. Limiting rod; 23. Hole shell; 24. Limiting ring; 25. Fixing bolt; 26. Hole plate; 27. Limiting block; 28. Spring push rod; 29. ​​Spring. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Referring to Figures 1, 3, and 6, one embodiment of the present invention provides a safe dual-output winch lifting device, comprising a base plate 1, a plurality of fixing plates 8 fixedly connected to the side of the base plate 1, a housing 6 fixedly connected to the side of each of the two fixing plates 8, a drive assembly provided inside the two housings 6, a housing 11 fixedly connected to the side of the other two fixing plates 8, a snap-fit ​​assembly provided inside the housings 11, a plurality of support plates 18 fixedly connected to the side of the base plate 1, and a reciprocating limiting assembly provided on the side of each of the two support plates 18;

[0037] The reciprocating limiting assembly includes a sliding screw 21, which is rotatably connected to the sides of two support plates 18. Two limiting rods 22 are fixedly connected to the top of the two support plates 18. Limiting blocks 27 are slidably connected to the outer sides of the two limiting rods 22. A locking block 19 is fixedly connected to the bottom of the limiting blocks 27. The sliding screw 21 is rotatably connected to the inner side of the locking block 19. A dual-head motor 16 simultaneously drives the two sliding screws 21 to rotate via a fixing rod 20. The locking block 19 engages with the sliding groove on the surface of the sliding screw 21, causing the locking block 19 to move along the surface of the sliding screw 21 when it rotates. The reciprocating limiting assembly also includes a perforated shell 23, which is fixedly connected to the side of the limiting blocks 27. A perforated plate 26 is slidably connected to the inner side of the perforated shell 23. Fixing bolts 25 are provided inside the corresponding holes of the perforated shell 23 and the perforated plate 26. A limiting ring 24 is fixedly connected to the top of the perforated plate 26. The limiting block 27 slides on the limiting rod 22 to ensure the straightness and stability of the operation. The perforated plate 26 can slide within the perforated shell 23 and be locked in different positions by the fixing bolts 25, thereby adjusting the height of the limiting ring 24 to meet the lifting requirements of ropes at different heights.

[0038] Referring to Figures 2, 4, and 7, the snap-fit ​​assembly includes two ratchet wheels 12, which are rotatably connected to the sides of the fixed plate 8 and the outer casing 11. The two ratchet wheels 12 are hinged to each other, and a connecting rod 10 is fixedly connected to the inner side of each ratchet wheel 12. The snap-fit ​​assembly also includes a spring push rod 28, which is fixedly connected to the inner side of the outer casing 11. A pawl 13 is fixedly connected to the end of the spring push rod 28, and the pawl 13 snaps into the outer side of the ratchet wheel 12. A spring 29 is sleeved on the outer side of the spring push rod 28. The ratchet wheel 12 is fixedly connected to the connecting rod 10 and rotates synchronously with the connecting rod 10. The spring push rod 28 pushes the pawl 13 through the elastic force of the spring 29, causing it to snap into the tooth groove of the ratchet wheel 12. When the roller 7 rotates forward to lift material via the rope, the ratchet 12 allows the pawl 13 to slide on the back of the teeth. In the event of an unexpected reversal, such as a power outage, the pawl 13 immediately engages the ratchet 12, preventing it from rotating in the opposite direction and effectively preventing material from falling. A pressing plate 9 is fixedly connected to the side of the pawl 13, and the pressing plate 9 is slidably connected to the inside of the outer casing 11. Pressing the pressing plate 9 overcomes the spring force, disengaging the pawl 13 from the ratchet 12 and releasing it from its locked state, facilitating equipment maintenance or emergency handling.

[0039] Referring to Figures 2 and 5, the drive assembly includes two gears 15, both rotatably connected to the sides of the fixed plate 8 and the outer casing 6. The two gears 15 mesh with each other. Two connecting rods 10 are rotatably connected to the inner sides of the multiple fixed plates 8. Rollers 7 are fixedly connected to the outer ends of both ends of the two connecting rods 10. The two gears 15 are respectively fixedly connected to the ends of the two connecting rods 10. Since the gears 15 are fixed to the ends of the connecting rods 10, when the gears 15 rotate, they drive the connecting rods 10 to rotate together, causing the rollers 7 at both ends to rotate synchronously. The rollers 7 are used to wind ropes, realizing the lifting or conveying of materials. Each of the two connecting rods 10 drives a pair of rollers 7, forming a dual-output structure, which can simultaneously drive two conveyor lines or share heavy loads, improving work efficiency. A second drive motor 14 is fixedly connected to the outer side of the outer casing 6, with one gear 15 fixedly connected to the output end of the second drive motor 14. After the second drive motor 14 starts, it drives the gear 15 connected to it to rotate. Because the two gears 15 mesh with each other, the other gear 15 will rotate in the opposite direction synchronously.

[0040] Referring to Figures 1, 2, and 3, a fixing block 17 is fixedly connected to the side of the base plate 1. A dual-head motor 16 is fixedly connected to the inside of the fixing block 17. Fixing rods 20 are fixedly connected to both output ends of the dual-head motor 16, and the two fixing rods 20 are respectively fixedly connected to the sides of two sliding screw rods 21. The dual-head motor 16 synchronously drives the sliding screw rods 21 on both sides, ensuring the symmetry and stability of the reciprocating limit assembly. The synchronous control of the dual-head motor 16 avoids uneven force on both sides. A drive motor 2 is fixedly connected to the side of the base plate 1, and a reducer 3 is fixedly connected to the outside of the base plate 1. The reducer 3 is fixedly connected to the output end of the drive motor 2. Two support frames 5 are fixedly connected to the side of the base plate 1, and rollers 4 are rotatably connected to the inside of each support frame 5. The ends of the two rollers 4 are fixedly connected to the two output ends of the reducer 3. The drive motor 2 reduces its speed and increases its torque through the reducer 3, driving the rollers 4 to rotate. When the rollers 4 rotate, the rope is wound around their surface. The reducer 3 can limit the output torque and prevent the motor from overloading.

[0041] Working principle: First, the drive motor 2 is started, causing the reducer 3 to drive the two rollers 4 to rotate, thereby winding and unwinding the rope. Simultaneously, the double-headed motor 16 is started, driving the sliding screw 21 to rotate on the side of the support plate 18 via the fixing rod 20. As the sliding screw 21 rotates, the locking block 19 slides within the groove on the surface of the sliding screw 21, thus moving along the screw axis. At the same time, the limiting block 27 slides outside the limiting rod 22, providing guidance for the locking block 19 and preventing it from rotating with the screw, ensuring linear movement. The perforated plate 26 can slide inside the perforated shell 23. The position of the perforated plate 26 is fixed by fixing bolts 25 passing through the corresponding holes in the perforated shell 23 and the perforated plate 26. The limiting ring 24 at the top of the perforated plate limits the rope during lifting; adjusting the position of the perforated plate changes the range of rope height limits.

[0042] After the drive motor 14 is started, the gear 15 connected to its output end will rotate. This gear 15 meshes with another gear 15, causing both gears 15 to rotate. The two gears 15 are respectively fixed to the ends of the connecting rod 10, so when the gears 15 rotate, they drive the connecting rod 10 to rotate, which in turn causes the rollers 7 at both ends of the connecting rod 10 to rotate together. The two rollers 7 can be used to move the rope by rotating in opposite directions, thus achieving dual-output power drive.

[0043] When the two connecting rods 10 rotate, they drive the two ratchet wheels 12 to rotate together, and the two ratchet wheels 12 are hinged to each other. When the ratchet wheel 12 rotates clockwise, the pawl 13, under the push of the spring 29, engages in the tooth groove of the ratchet wheel 12, preventing the ratchet wheel 12 from rotating counterclockwise, thus achieving one-way locking and preventing the lifting device from sliding down due to gravity. Pressing the pressing plate 9 on the inner side of the outer casing causes the pawl 13 to move outward against the spring force, disengaging from the tooth groove of the ratchet wheel 12, thereby releasing the lock and allowing the ratchet wheel 12 to rotate in the opposite direction.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A safe dual-output winch hoisting device, comprising a base plate (1), characterized in that: The base plate (1) is fixedly connected to a plurality of fixed plates (8) on its side. Two of the fixed plates (8) are fixedly connected to a first outer shell (6) on their side. Both of the first outer shells (6) are provided with a drive assembly on their inner side. The other two fixed plates (8) are fixedly connected to a second outer shell (11) on their side. Both of the second outer shells (11) are provided with a snap-fit ​​assembly on their inner side. The base plate (1) is fixedly connected to a plurality of support plates (18) on its side. Both of the support plates (18) are provided with a reciprocating limiting assembly on their side. The reciprocating limiting assembly includes a sliding screw (21). The sliding screw (21) is rotatably connected to the side of the two support plates (18). Two limiting rods (22) are fixedly connected to the top of the two support plates (18). Limiting blocks (27) are slidably connected to the outside of the two limiting rods (22). A locking block (19) is fixedly connected to the bottom of the limiting block (27). The sliding screw (21) is rotatably connected to the inside of the locking block (19).

2. The safety-type dual-output winch hoisting device according to claim 1, characterized in that: The reciprocating limiting assembly also includes a perforated shell (23), which is fixedly connected to the side of the limiting block (27). A perforated plate (26) is slidably connected to the inner side of the perforated shell (23). Fixing bolts (25) are provided on the inner side of the corresponding holes of the perforated shell (23) and the perforated plate (26). A limiting ring (24) is fixedly connected to the top of the perforated plate (26).

3. The safety-type dual-output winch hoisting device according to claim 1, characterized in that: The snap-fit ​​assembly includes two ratchet wheels (12), which are rotatably connected to the side of the fixed plate (8) and the outer shell (11). The two ratchet wheels (12) are hinged to each other, and a connecting rod (10) is fixedly connected to the inner side of each ratchet wheel (12).

4. A safe dual-output winch hoisting device according to claim 3, characterized in that: The snap-fit ​​assembly also includes a spring push rod (28), which is fixedly connected to the inner side of the second housing (11). A pawl (13) is fixedly connected to the end of the spring push rod (28), and the pawl (13) is snapped onto the outer side of the ratchet (12). A spring (29) is sleeved on the outer side of the spring push rod (28). A pressing plate (9) is fixedly connected to the side of the pawl (13), and the pressing plate (9) is slidably connected to the inner side of the second housing (11).

5. A safe dual-output winch hoisting device according to claim 4, characterized in that: The drive assembly includes two gears (15), both gears (15) are rotatably connected to the side of the fixed plate (8) and the outer shell (6), the two gears (15) mesh with each other, and two connecting rods (10) are rotatably connected to the inner side of the multiple fixed plates (8), and rollers (7) are fixedly connected to the outer sides of both ends of the two connecting rods (10), and the two gears (15) are respectively fixedly connected to the ends of the two connecting rods (10).

6. A safe dual-output winch hoisting device according to claim 5, characterized in that: A drive motor 2 (14) is fixedly connected to the outside of the outer casing 1 (6), and one of the gears (15) is fixedly connected to the output end of the drive motor 2 (14).

7. A safe dual-output winch hoisting device according to claim 1, characterized in that: A fixing block (17) is fixedly connected to the side of the base plate (1), and a double-headed motor (16) is fixedly connected to the inside of the fixing block (17). A fixing rod (20) is fixedly connected to each of the two output ends of the double-headed motor (16), and the two fixing rods (20) are respectively fixedly connected to the sides of the two sliding screws (21).

8. A safe dual-output winch hoisting device according to claim 1, characterized in that: A drive motor (2) is fixedly connected to the side of the base plate (1), and a speed reducer (3) is fixedly connected to the outside of the base plate (1). The speed reducer (3) is fixedly connected to the output end of the drive motor (2). Two support frames (5) are fixedly connected to the side of the base plate (1). Rollers (4) are rotatably connected to the inner side of the two support frames (5). The ends of the two rollers (4) are fixedly connected to the two output ends of the speed reducer (3).

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