Winch brake structure convenient to lock

Abstract

The utility model discloses a winch brake structure convenient to lock, which belongs to the technical field of winch brake and comprises a brake box, a brake shaft is rotatably connected to an inner cavity of the brake box, a hub is fixedly sleeved on the outer side of the brake shaft, a brake mechanism is arranged in the inner cavity of the brake box, and the brake mechanism is connected with the brake shaft. The two ends of the brake shaft are fixedly connected with bearings in a sleeved mode respectively. According to the brake device, the hub, the brake shaft and the winch are braked through cooperation of the fixing base, the brake band, the pulling base and the oil cylinder, the brake column is driven to move through the electric push rod, and the fixing disc is driven to rotate through cooperation of a guide arc at the end of the brake column and a guide groove in the side face of the fixing disc. The end portion of the brake column is inserted into the brake hole in the side portion of the fixing disc, the fixing disc and the hub are connected, the fixing disc is limited through cooperation of the arc-shaped groove and the limiting bolt, and therefore the function of locking the hub and the winch is achieved, and the safety of winch braking is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of winch brakes, and more specifically to a winch brake structure which is easy to lock. Background Art

[0002] A winch is a small and light lifting equipment that uses a drum to wrap a wire rope or chain to lift or pull heavy objects. It is also called a winch. It is mainly used for lifting or towing materials in construction, water conservancy projects, forestry, mining, docks, etc. At the same time, the winch is equipped with a brake device to fix the lifted material in a certain position.

[0003] After searching, the utility model patent with the announcement number CN214611282U discloses a winch brake device, which includes a fixed seat, a brake belt and an oil cylinder, wherein the first end of the brake belt is connected to the fixed seat; the cylinder body of the oil cylinder is connected to the fixed seat, and the piston rod of the oil cylinder is connected to the second end of the brake belt, so that the brake belt itself forms an open loop or closed loop structure. The winch brake device has a sensitive braking response, high efficiency and a high safety factor; the patent also discloses a winch, which includes a wheel hub and at least one winch brake device, and the brake belt is sleeved on the periphery of the wheel hub.

[0004] However, the above patent still has the following shortcomings: the winch is braked by the friction between the brake belt and the wheel hub, but the wheel hub cannot be locked after the brake is stopped. The quality of the winch brake cannot be guaranteed by the friction between the brake belt and the wheel hub, and the wheel hub may rotate. Therefore, we propose a winch brake structure that is easy to lock. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a winch brake structure which is easy to lock.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] A winch brake structure with easy locking comprises a brake box, the inner cavity of the brake box is rotatably connected with a brake shaft, the outer side of the brake shaft is fixedly sleeved with a wheel hub, the inner cavity of the brake box is provided with a brake mechanism, the two ends of the brake shaft are respectively fixedly sleeved with bearings, the outer side of the bearing is fixedly sleeved with a fixed plate, the outer side of the fixed plate is provided with a plurality of arc grooves, the inner cavities of the plurality of arc grooves are sleeved with limit bolts, the ends of the limit bolts are connected to the inner wall of the brake box, the side of the fixed plate is provided with a plurality of brake holes, the side of the fixed plate and the ends of the brake holes are provided with guide grooves, the side of the wheel hub is fixedly installed with a plurality of electric push rods, the output end of the electric push rod is fixedly connected with a brake column, and the end of the brake column is provided with a guide arc.

[0008] As a preferred solution of the utility model, the brake mechanism includes a fixed seat fixedly connected to the inner wall of the brake box, the end of the fixed seat is fixedly connected to the brake belt, the end of the brake belt is sleeved to the outer side of the wheel hub and fixedly connected to the pulling seat, the top surface of the fixed seat is fixedly installed with an oil cylinder, and the output end of the oil cylinder is connected to the bottom surface of the pulling seat.

[0009] As a preferred solution of the utility model, the end of the brake shaft extends to the outside of the brake box and is fixedly connected to a connecting seat, and a connecting screw is threadedly sleeved on the side of the connecting seat.

[0010] As a preferred solution of the utility model, a box door is hinged on the top surface of the brake box.

[0011] As a preferred solution of the utility model, a plurality of screw holes are provided on the inner wall of the brake box, and the ends of the limit bolts are threadedly installed in the inner cavities of the screw holes.

[0012] As a preferred solution of the utility model, the inner diameter of the brake hole is equal to the outer diameter of the brake column.

[0013] As a preferred solution of the utility model, the side surface of the limiting bolt is in contact with the inner wall of the arc-shaped groove.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] In the utility model, the wheel hub, brake shaft and winch are braked by the cooperation of the fixed seat, brake belt, pulling seat and oil cylinder, and the brake column is driven to move by the electric push rod, and the fixed plate is driven to rotate by the cooperation of the guide arc at the end of the brake column and the guide groove on the side of the fixed plate, and the end of the brake column is inserted into the brake hole on the side of the fixed plate to connect the fixed plate and the wheel hub, and the fixed plate is limited by the cooperation of the arc groove and the limit bolt, so as to realize the function of locking the wheel hub and the winch, thereby improving the safety of the winch brake. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the interior of the brake box of the utility model;

[0019] Figure 4 It is a cross-sectional schematic diagram of the brake box of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the fixed disk of the utility model.

[0021] Description of the numbers in the figure:

[0022] 1. Brake box; 2. Brake shaft; 3. Wheel hub; 4. Brake mechanism; 5. Screw hole; 6. Bearing; 7. Fixed plate; 8. Arc groove; 9. Limit bolt; 10. Brake hole; 11. Guide groove; 12. Electric push rod; 13. Brake column; 14. Guide arc; 15. Fixed seat; 16. Brake band; 17. Pull seat; 18. Cylinder; 19. Box door; 20. Connecting seat; 21. Connecting screws. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] Example:

[0027] See also Figure 1-5A winch brake structure with easy locking comprises a brake box 1, the inner cavity of the brake box 1 is rotatably connected with a brake shaft 2, the outer side of the brake shaft 2 is fixedly sleeved with a wheel hub 3, the inner cavity of the brake box 1 is provided with a brake mechanism 4, the two ends of the brake shaft 2 are respectively fixedly sleeved with bearings 6, the outer side of the bearing 6 is fixedly sleeved with a fixed plate 7, the outer side of the fixed plate 7 is provided with a plurality of arc grooves 8, the inner cavity of the plurality of arc grooves 8 is sleeved with a limit bolt 9, the end of the limit bolt 9 is connected to the inner wall of the brake box 1, the side of the fixed plate 7 is provided with a plurality of brake holes 10, the side of the fixed plate 7 and the end of the brake hole 10 are provided with a guide groove 11, and the side of the wheel hub 3 is fixedly installed with a plurality of electric push rods 12, the output end of the electric push rod 12 is fixedly connected with a brake column 13, and the end of the brake column 13 is provided with a guide arc 14.

[0028] In this embodiment, the fixed plate 7 can be driven to rotate by the cooperation and extrusion of the guide arc 14 and the guide groove 11, thereby ensuring that the brake column 13 can be inserted into the brake hole 10, and the rotation range of the fixed plate 7 is limited by the cooperation of the arc groove 8 and the limit bolt 9.

[0029] For details, please refer to Figure 2 The brake mechanism 4 includes a fixing seat 15 fixedly connected to the inner wall of the brake box 1, and a brake belt 16 is fixedly connected to the end of the fixing seat 15. The end of the brake belt 16 is sleeved to the outer side of the wheel hub 3 and fixedly connected to the pulling seat 17. The top surface of the fixing seat 15 is fixedly installed with an oil cylinder 18, and the output end of the oil cylinder 18 is connected to the bottom surface of the pulling seat 17.

[0030] In this embodiment, the oil cylinder 18 is used to drive the pulling seat 17 to move downward, the pulling seat 17 is used to pull the brake belt 16, and the brake belt 16 is used to squeeze and rub the wheel hub 3 to brake the wheel hub 3 and then brake the winch.

[0031] For details, please refer to Figure 1 The end of the brake shaft 2 extends to the outside of the brake box 1 and is fixedly connected to a connecting seat 20, and a connecting screw 21 is threadedly sleeved on the side of the connecting seat 20.

[0032] In this embodiment, the brake device is connected to the winch shaft via a connecting seat 20 and a connecting screw 21 .

[0033] For details, please refer to Figure 3 The top surface of the brake box 1 is hinged with a box door 19.

[0034] In this embodiment, the brake box 1 is repaired by opening the box door 19 .

[0035] For details, please refer to Figures 3 to 5 The inner wall of the brake box 1 is provided with a plurality of screw holes 5 , and the ends of the limit bolts 9 are threadedly installed into the inner cavities of the screw holes 5 .

[0036] In this embodiment, the limiting bolt 9 is installed on the inner wall of the brake box 1 through the limiting bolt 9 and the inner cavity of the screw hole 5 .

[0037] For details, please refer to Figure 3 and Figure 5 The inner diameter of the brake hole 10 is equal to the outer diameter of the brake column 13.

[0038] In this embodiment, the stability of the brake post 13 inserted into the brake hole 10 is ensured.

[0039] For details, please refer to Figure 5 The side surface of the limiting bolt 9 is in contact with the inner wall of the arc groove 8.

[0040] In this embodiment, the stability of the limiting bolt 9 in the arc groove 8 is ensured.

[0041] Working principle: When in use, first connect the connecting seat 20 and the rotating shaft of the winch. When the rotating shaft of the winch rotates, it drives the brake shaft 2 and the wheel hub 3 to rotate synchronously. Then, when the winch needs to be braked, start the oil cylinder 18 to drive the pulling seat 17 to move down, use the pulling seat 17 to pull the brake belt 16, use the brake belt 16 to squeeze the wheel hub 3, and use the friction between the wheel hub 3 and the brake belt 16 to brake the wheel hub 3 and the brake shaft 2, thereby braking the winch. Then start the electric push rod 12 to drive the brake column 13 to move, so that the guide arc at the end of the brake column 13 14 squeezes the guide groove 11 on the side of the fixed plate 7, and the extrusion fit between the guide arc 14 and the guide groove 11 drives the fixed plate 7 to rotate slightly, and the brake column 13 is inserted into the brake hole 10. Finally, when the brake belt 16 fails to stop the wheel hub 3, causing the wheel hub 3 and the brake shaft 2 to slide, the wheel hub 3 synchronously drives the electric push rod 12, the brake column 13 and the fixed plate 7 to rotate. When the inner wall of the arc groove 8 on the fixed plate 7 contacts the limit bolt 9, the fixed plate 7 stops rotating. At this time, the wheel hub 3 is fixed, and then the winch is braked and locked.

[0042] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be included in the protection scope of the utility model.

Claims

1. A winch brake structure with easy locking, comprising a brake box (1), characterized in that: The inner cavity of the brake box (1) is rotatably connected to a brake shaft (2), the outer side of the brake shaft (2) is fixedly sleeved with a wheel hub (3), the inner cavity of the brake box (1) is provided with a brake mechanism (4), the two ends of the brake shaft (2) are respectively fixedly sleeved with bearings (6), the outer side of the bearing (6) is fixedly sleeved with a fixed plate (7), the outer side of the fixed plate (7) is provided with a plurality of arc grooves (8), and the inner cavities of the plurality of arc grooves (8) are sleeved with limit bolts (9), The end of the limit bolt (9) is connected to the inner wall of the brake box (1), a plurality of brake holes (10) are opened on the side of the fixed plate (7), and guide grooves (11) are provided on the side of the fixed plate (7) and the ends of the brake holes (10). A plurality of electric push rods (12) are fixedly installed on the side of the wheel hub (3), and a brake column (13) is fixedly connected to the output end of the electric push rod (12), and a guide arc (14) is provided at the end of the brake column (13).

2. A winch brake structure with easy locking according to claim 1, characterized in that: The brake mechanism (4) comprises a fixing seat (15) fixedly connected to the inner wall of the brake box (1), the end of the fixing seat (15) is fixedly connected to a brake belt (16), the end of the brake belt (16) is sleeved to the outer side of the wheel hub (3) and fixedly connected to a pulling seat (17), the top surface of the fixing seat (15) is fixedly mounted with an oil cylinder (18), and the output end of the oil cylinder (18) is connected to the bottom surface of the pulling seat (17).

3. A winch brake structure with convenient locking according to claim 1, characterized in that: The end of the brake shaft (2) extends to the outside of the brake box (1) and is fixedly connected to a connecting seat (20), and a connecting screw (21) is threadedly sleeved on the side of the connecting seat (20).

4. A winch brake structure with easy locking according to claim 1, characterized in that: A box door (19) is hinged on the top surface of the brake box (1).

5. The winch brake structure with convenient locking according to claim 1, characterized in that: The inner wall of the brake box (1) is provided with a plurality of screw holes (5), and the ends of the limiting bolts (9) are threadedly mounted in the inner cavities of the screw holes (5).

6. A winch brake structure with convenient locking according to claim 1, characterized in that: The inner diameter of the brake hole (10) is equal to the outer diameter of the brake column (13).

7. The winch brake structure with convenient locking according to claim 1, characterized in that: The side surface of the limiting bolt (9) is in contact with the inner wall of the arc-shaped groove (8).

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