Winch braking device with high safety

Abstract

The utility model is suitable for the technical field of winches, and provides a winch braking device with high safety, which comprises a winch base, a support plate, a power component, a braking component, a braking unit and a limiting component, the supporting plate is fixedly installed on a winch base, the braking assembly comprises an installation plate, the end face of the installation plate is fixedly connected with a fixed column and a first electromagnet, the inner wall face of the fixed column is fixedly connected with a fixed plate, the end face of the fixed plate is fixedly connected with a braking spring, and the end face of the braking spring is connected with a movable plate. When the winch is powered off abnormally, the roller structure can be automatically braked, manual operation control is not needed, the braking delay of the winch is reduced, and the operation safety of the winch is improved. Through the arrangement of the limiting unit and the limiting assembly, after the winch is braked, auxiliary braking can be conducted on the roller structure of the winch again, the fault tolerance rate of winch braking is reduced, and therefore the accident occurrence probability is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of winches, and in particular relates to a winch braking device with high safety. 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. The winch can lift vertically and pull heavy objects horizontally or at an angle. The winch is divided into three types: manual winch, electric winch and hydraulic winch. The electric winch is the main one. It can be used alone or as a component of machinery such as lifting, road construction and mine hoisting. It is widely used due to its simple operation, large rope winding capacity and easy relocation. It is mainly used for lifting or towing materials in construction, water conservancy projects, forestry, mines, docks, etc. In order to increase the safety of the winch, the winch will be equipped with a braking mechanism to increase the stability of the winch when it stops running.

[0003] The existing technology uses hydraulic or electric drive to apply pressure to the winch roller to brake it, which requires manual control. It cannot actively brake the winch when the winch has a power outage. Manual control of the winch braking has a delay, which will increase the risk of winch operation due to untimely operation. Utility Model Content

[0004] The purpose of the utility model is to provide a winch braking device with high safety, aiming to solve the problem that the existing technology uses hydraulic or electric drive to apply pressure to the winch roller to brake it, which requires manual control and cannot actively brake the winch when the winch has a power outage. The manual control of the winch braking has a delay, which will increase the danger of the winch operation due to untimely operation.

[0005] The utility model is achieved in this way. A winch brake device with high safety includes a winch base, a support plate, a power component, a brake component, a brake unit and a limiting component; the support plate is fixedly mounted on the winch base, the brake component includes a mounting plate, an end surface of the mounting plate is fixedly connected to a fixed column and a first electromagnet, an inner wall surface of the fixed column is fixedly connected to a fixed plate, an end surface of the fixed plate is fixedly connected to a brake spring, an end surface of the brake spring is fixedly connected to a movable plate, an inner wall surface of the movable plate is fixedly connected to a movable rod, an end surface of the movable rod is fixedly connected to a magnet block, a free end of the movable rod is fixedly connected to a mounter, the brake unit includes a mounting block, an end surface of the mounting block is rotatably connected to the brake block, the limiting component includes a fixed box, an inner wall surface of the fixed box is rotatably connected to a brake shaft, an outer wall surface of the brake shaft is fixedly connected to a brake plate, an end surface of the brake plate is fixedly connected to a magnet plate, an inner wall surface of the fixed box is also fixedly connected to a connecting plate, and an end surface of the connecting plate is fixedly connected to a second electromagnet.

[0006] As a further solution of the present invention, the power assembly includes a power motor, the end face of the power motor output shaft is fixedly connected to the power shaft, the outer wall surface of the power shaft is fixedly connected to the roller structure, the end face of the power shaft is fixedly connected to the limiting unit, the outer wall surface of the power motor is fixedly connected to the support plate, the limiting unit includes a fixing ring and a limiting rod fixedly connected to the outer wall surface of the fixing ring, and the inner wall surface of the fixing ring is fixedly connected to the power shaft.

[0007] As a further solution of the present invention, the outer wall surface of the mounting plate is fixedly connected to the support plate, the outer wall surface of the movable plate is slidably connected to the fixed column, and the outer wall surface of the movable rod is slidably connected to the fixed plate and the fixed column.

[0008] As a further solution of the present invention, the outer wall surface of the mounting block is plugged into the installer, and the shape of the brake block is arc-shaped.

[0009] As a further solution of the present invention, the support plate is welded to the winch base, the fixing box is welded to the support plate, and the mounting plate is welded to the support plate.

[0010] As a further solution of the present invention, the brake plate is rotatably connected to the fixed box through a brake shaft, the maximum rotation angle of the brake plate is sixty degrees, the end face of the fixed box is clamped with a sealing cover, and the end face of the sealing cover is provided with a hole groove.

[0011] The utility model provides a winch braking device with high safety. Through the setting of the braking component, the drum structure can be automatically braked when the winch is abnormally powered off, so that no manual operation control is required, the delay of the winch braking is reduced, and the safety of the winch operation is increased. Through the setting of the limiting unit and the limiting component, the drum structure of the winch can be auxiliary braked again after the winch is braked, thereby reducing the fault tolerance rate of the winch braking and reducing the probability of accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A three-dimensional schematic diagram of a winch brake device with high safety provided by an embodiment of the utility model;

[0013] Figure 2 A side sectional view of a winch brake device with high safety provided by an embodiment of the utility model;

[0014] Figure 3 A top cross-sectional view of a winch brake device with high safety provided by an embodiment of the utility model;

[0015] Figure 4 A winch brake device with high safety is provided in the embodiment of the utility model Figure 3Enlarged view of point A in the middle.

[0016] In the accompanying drawings: 1. Winch base; 2. Support plate; 3. Power assembly; 31. Power motor; 32. Power shaft; 33. Drum structure; 34. Limiting unit; 4. Braking assembly; 41. Mounting plate; 42. Fixed column; 43. First electromagnet; 44. Fixed plate; 45. Braking spring; 46. Movable plate; 47. Movable rod; 48. Magnet block; 49. Installer; 5. Braking unit; 51. Mounting block; 52. Brake block; 6. Limiting assembly; 61. Fixed box; 62. Brake shaft; 63. Brake plate; 64. Magnet plate; 65. Connecting plate; 66. Second electromagnet; 67. Sealing cover. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0019] like Figures 1 to 4 As shown, a winch brake device with high safety is provided by an embodiment of the present invention, which includes a winch base 1, a support plate 2, a power assembly 3, a brake assembly 4, a brake unit 5 and a limiting assembly 6; the support plate 2 is fixedly mounted on the winch base 1, and the brake assembly 4 includes a mounting plate 41, the end surface of the mounting plate 41 is fixedly connected to a fixed column 42 and a first electromagnet 43, the inner wall surface of the fixed column 42 is fixedly connected to a fixed plate 44, the end surface of the fixed plate 44 is fixedly connected to a brake spring 45, the end surface of the brake spring 45 is fixedly connected to a movable plate 46, and the inner wall surface of the movable plate 46 It is fixedly connected to a movable rod 47, the end face of the movable rod 47 is fixedly connected to a magnet block 48, the free end of the movable rod 47 is fixedly connected to a mounter 49, the brake unit 5 includes a mounting block 51, the end face of the mounting block 51 is rotatably connected to the brake block 52, the limiting assembly 6 includes a fixed box 61, the inner wall surface of the fixed box 61 is rotatably connected to the brake shaft 62, the outer wall surface of the brake shaft 62 is fixedly connected to a brake plate 63, the end face of the brake plate 63 is fixedly connected to a magnet plate 64, the inner wall surface of the fixed box 61 is also fixedly connected to a connecting plate 65, and the end face of the connecting plate 65 is fixedly connected to a second electromagnet 66.

[0020] The utility model provides a winch braking device with high safety. Through the setting of the brake component 4, the drum structure 33 can be automatically braked when the winch is abnormally powered off, so that no manual operation control is required, the delay of the winch braking is reduced, and the safety of the winch operation is increased; through the setting of the limiting unit 34 and the limiting component 6, the drum structure 33 of the winch can be auxiliary braked again after the winch is braked, thereby reducing the fault tolerance rate of the winch braking and reducing the probability of accidents.

[0021] When the first electromagnet 43 is in use, the first electromagnet 43 is energized to generate a magnetic force, which is magnetically attracted to the magnet block 48 and pulled. The brake block 52 is moved away from the power shaft 32 through the movable rod 47. Then, the power motor 31 is energized to output power to drive the power shaft 32 to drive the drum structure 33 to rotate, so that the winch can operate normally. In the event of an abnormal power outage, the power motor 31 and the first electromagnet 43 will be powered off synchronously, causing the first electromagnet 43 to lose magnetism. The movable plate 46 is acted upon by the force of the brake spring 45 to push the movable rod 47 and the brake block 52, so that the brake block 52 fits against the power shaft 32, increasing the friction resistance. Then, the second electromagnet 66 is energized to generate a magnetic force, which repels the magnetic force of the magnet plate 64 and rotates the brake plate 63 counterclockwise by sixty degrees through the brake shaft 62. At this time, the limiting rod of the limiting unit 34 fits against the brake plate 63, and the drum structure 33 is rotated again, increasing the fault tolerance of the winch braking and also increasing the safety of the winch braking.

[0022] like Figure 1 and Figure 2 As shown, as a further embodiment of the present invention, the power assembly 3 includes a power motor 31, the end surface of the output shaft of the power motor 31 is fixedly connected to the power shaft 32, the outer wall surface of the power shaft 32 is fixedly connected to the roller structure 33, the end surface of the power shaft 32 is fixedly connected to the limiting unit 34, the outer wall surface of the power motor 31 is fixedly connected to the support plate 2, the limiting unit 34 includes a fixing ring and a limiting rod fixedly connected to the outer wall surface of the fixing ring, and the inner wall surface of the fixing ring is fixedly connected to the power shaft 32;

[0023] The power motor 31 can output power to enable the winch to operate.

[0024] like Figure 3 and Figure 4 As shown, as a further embodiment of the present invention, the outer wall surface of the mounting plate 41 is fixedly connected to the support plate 2, the outer wall surface of the movable plate 46 is slidably connected to the fixed column 42, and the outer wall surface of the movable rod 47 is slidably connected to the fixed plate 44 and the fixed column 42;

[0025] Specifically, as a further embodiment of the present invention, the outer wall surface of the mounting block 51 is plugged into the mounter 49, and the brake block 52 is in an arc shape;

[0026] The braking block 52 can be made to fit with the power shaft 32 by the action of the braking spring 45 , thereby increasing the friction resistance and braking the power shaft 32 .

[0027] like Figure 2 、 Figure 3 and Figure 4 As shown, as a further embodiment of the present invention, the support plate 2 is welded to the winch base 1, the fixing box 61 is welded to the support plate 2, and the mounting plate 41 is welded to the support plate 2;

[0028] Specifically, as a further embodiment of the present invention, the brake plate 63 is rotatably connected to the fixed box 61 via the brake shaft 62. The maximum rotation angle of the brake plate 63 is 60 degrees. The end surface of the fixed box 61 is clamped with a sealing cover 67, and the end surface of the sealing cover 67 is provided with a hole groove.

[0029] The connection is made more secure. Since the brake plate 63 is affected by gravity, it will rotate clockwise to the maximum angle through the brake shaft 62, so that it will not affect the operation of the winch.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A winch brake device with high safety, characterized in that: The device comprises a winch base (1), a support plate (2), a power assembly (3), a brake assembly (4), a brake unit (5) and a limiting assembly (6); the support plate (2) is fixedly mounted on the winch base (1); the brake assembly (4) comprises a mounting plate (41); the end surface of the mounting plate (41) is fixedly connected to a fixed column (42) and a first electromagnet (43); the inner wall surface of the fixed column (42) is fixedly connected to a fixed plate (44); the end surface of the fixed plate (44) is fixedly connected to a brake spring (45); the end surface of the brake spring (45) is fixedly connected to a movable plate (46); the inner wall surface of the movable plate (46) is fixedly connected to a movable rod (47); the movable rod ( The end face of the movable rod (47) is fixedly connected to a magnet block (48), the free end of the movable rod (47) is fixedly connected to a mounter (49), the braking unit (5) includes a mounting block (51), the end face of the mounting block (51) is rotatably connected to a brake block (52), the limiting assembly (6) includes a fixed box (61), the inner wall surface of the fixed box (61) is rotatably connected to a brake shaft (62), the outer wall surface of the brake shaft (62) is fixedly connected to a brake plate (63), the end face of the brake plate (63) is fixedly connected to a magnet plate (64), the inner wall surface of the fixed box (61) is also fixedly connected to a connecting plate (65), and the end face of the connecting plate (65) is fixedly connected to a second electromagnet (66).

2. A winch brake device with high safety according to claim 1, characterized in that: The power assembly (3) comprises a power motor (31), the end face of the output shaft of the power motor (31) is fixedly connected to a power shaft (32), the outer wall surface of the power shaft (32) is fixedly connected to a roller structure (33), the end face of the power shaft (32) is fixedly connected to a limiting unit (34), the outer wall surface of the power motor (31) is fixedly connected to the support plate (2), the limiting unit (34) comprises a fixing ring and a limiting rod fixedly connected to the outer wall surface of the fixing ring, and the inner wall surface of the fixing ring is fixedly connected to the power shaft (32).

3. A winch brake device with high safety according to claim 1, characterized in that: The outer wall surface of the mounting plate (41) is fixedly connected to the support plate (2), the outer wall surface of the movable plate (46) is slidably connected to the fixed column (42), and the outer wall surface of the movable rod (47) is slidably connected to the fixed plate (44) and the fixed column (42).

4. A winch brake device with high safety according to claim 1, characterized in that: The outer wall surface of the mounting block (51) is plugged into the mounter (49), and the brake block (52) is in an arc shape.

5. The winch brake device with high safety according to claim 1, characterized in that: The support plate (2) is welded to the winch base (1), the fixing box (61) is welded to the support plate (2), and the mounting plate (41) is welded to the support plate (2).

6. A winch brake device with high safety according to claim 1, characterized in that: The brake plate (63) is rotatably connected to the fixed box (61) via a brake shaft (62). The maximum rotation angle of the brake plate (63) is sixty degrees. The end face of the fixed box (61) is clamped with a sealing cover (67), and the end face of the sealing cover (67) is provided with a hole groove.

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