Unmanned helicopter winch structure for heavy lifting

Abstract

The utility model relates to a kind of unmanned helicopter winch structure for heavy lifting, including unmanned helicopter body and winch structure body, the winch structure body includes pedestal, reel unit and firm unit, the pedestal is fixedly installed in the cabin of unmanned helicopter body, the reel unit is rotatably installed on pedestal from left to right, the reel unit is used to wind and take up and pay off cable, the firm unit is arranged on pedestal, the firm unit is spaced apart and arranged at the front end of reel unit, the firm unit is used to constrain rope to avoid rope too much swing, by adopting the above technical scheme, the winch structure is arranged in the cabin of unmanned helicopter, the cable on reel unit is constrained in real time using firm unit, to avoid rope too much swing, reduce the swing amplitude in the process of cable winding and unwinding, so that material can be stably carried, and improve the stability when unmanned helicopter hoists heavy goods.

Description

Technical Field

[0001] This utility model relates to the field of unmanned helicopter technology, and in particular to a winch structure for unmanned helicopters used for heavy object handling. Background Technology

[0002] With the rapid development of drone technology, unmanned helicopters, with their unique advantages such as vertical take-off and landing and hovering, have shown great application potential in fields such as material transportation, emergency rescue, and agricultural and forestry spraying.

[0003] Currently, unmanned helicopters, because they do not require dedicated take-off and landing sites and can be used in various different locations, have made up for the shortcomings of traditional ground transportation, which is limited by terrain and has inconvenient deployment of large hoisting equipment. They have become an important piece of equipment in the field of heavy material handling. In practical applications, the winch structure is usually set up in the cabin of the unmanned helicopter, and materials are hoisted by winding and unwinding the cable.

[0004] The aforementioned existing technical solutions have the following drawbacks: they cannot constrain the cable's release and retraction trajectory, and the cable is prone to significant swaying. Utility Model Content

[0005] The purpose of this invention is to provide a winch structure for unmanned helicopters used for heavy object handling, in order to solve the problems existing in the prior art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A winch structure for heavy object handling by an unmanned helicopter includes an unmanned helicopter body and a winch structure body, wherein the winch structure body includes: A base, which is fixedly installed inside the cabin of the unmanned helicopter body; A reel unit, which is rotatably mounted on a base from left to right, is used for winding and unwinding cables; The stabilizing unit is mounted on the base and spaced apart at the front end of the reel unit. The stabilizing unit is used to restrain the rope to prevent it from swaying excessively.

[0007] By adopting the above technical solution, the winch structure is set inside the cabin of the unmanned helicopter. The stabilizing unit constrains the cable released from the reel unit in real time, which can prevent the cable from shaking too much, reduce the swing amplitude during the cable winding and unwinding process, so that the material can be transported stably and improve the stability of the unmanned helicopter when lifting heavy objects.

[0008] In a further embodiment, the stabilizing unit includes: A screw, which is rotatably mounted on a base from left to right along its length; Guide rods are fixedly installed on the base from left to right along the length direction, and the guide rods are arranged parallel to each other at the front end of the screw. The slide has a threaded hole that runs through the left and right sides at its rear end and a sliding hole that runs through the left and right sides at its front end. The slide is slidably mounted on the guide rod and the screw rod through the threaded hole and the sliding hole. A support frame is fixedly mounted on the top of the slide. A first channel for the cable to pass through in the front-back direction is formed inside the support frame. An extension plate is fixedly mounted on the bottom of the slide. A fixed shaft is fixedly installed at the bottom end of the extension plate. The fixed shaft is spaced apart directly below the guide rod and is parallel to the guide rod. Fixed seats are provided at both ends of the fixed shaft and are fixedly installed inside the cabin of the unmanned helicopter body. The first guide wheel is rotatably mounted inside the support frame and is used for the initial guidance of the cable. The second guide wheel has a through clearance hole at the front end of the slide table. The same fixed frame is fixedly installed between the slide table and the bottom end of the extension plate. The inside of the fixed frame forms a second channel for the cable to pass through in the left and right direction. The second guide wheel is rotatably installed inside the fixed frame and is used to guide the cable in a secondary manner. The third guide wheel is rotatably mounted on the inner bottom end of the fixed frame and is used to guide the cable three times.

[0009] By adopting the above technical solution, when the screw rotates, it can drive the slide to move along the guide rod, so that the stabilizing unit can adaptively adjust its position according to the winding and unwinding action of the reel unit. The cable released from the reel unit passes through the first channel, the clearance hole and the second channel in sequence, and then passes through the top of the first guide wheel, the right end of the second guide wheel and the top and left ends of the third guide wheel in sequence. Finally, the cable exits from the left end of the third guide wheel. The first guide wheel, the second guide wheel and the third guide wheel limit the cable in multiple directions, thereby further limiting the swaying space of the cable and preventing it from swinging significantly.

[0010] In a further embodiment, the support frame includes: The first vertical plate is fixedly installed on the top of the slide table; The second vertical plate is fixedly installed on the top of the slide table. The second vertical plate is spaced apart on the right side of the first vertical plate. The first vertical plate and the center of the side of the first vertical plate that are close to each other are rotatably mounted on the same first rotating shaft. The first guide wheel is sleeved on the first rotating shaft. The first vertical plate and the second vertical plate are rotatably mounted on the top of the side of their respective adjacent sides, with a limit wheel.

[0011] By adopting the above technical solution, the first vertical plate and the second vertical plate form a first channel in the front-to-back direction, thereby installing the first guide wheel in the first channel from front to back in the vertical direction to limit the cable in the left and right directions. With the guiding effect of the first guide wheel and the anti-detachment effect of the first limiting wheel, the cable can be prevented from coming out of the support frame, and the friction loss between the cable and the support frame can be reduced.

[0012] In a further embodiment, the fixing frame includes: The first L-shaped plate is located at the bottom rear side of the clearance hole. One end of the first L-shaped plate is fixedly connected to the slide table, and the other end of the first L-shaped plate is fixedly connected to the extension plate. The right angle of the first L-shape faces the direction of travel of the unmanned helicopter body. The second L-shaped plate is located at the bottom front side of the clearance hole. One end of the second L-shaped plate is fixedly connected to the slide table, and the other end of the second L-shaped plate is fixedly connected to the extension plate. The second L-shaped plate and the first L-shaped plate are arranged in parallel. The same second rotating shaft is rotatably installed at the right angle position on the side of the first L-shaped plate and the second L-shaped plate that are close to each other. The second guide wheel is sleeved on the second rotating shaft. The first hanging plate is fixedly installed vertically on the rear side of the right angle of the first L-shaped plate; The first and second hanging plates are fixedly installed vertically on the front side of the right angle of the second L-shaped plate. The first and second hanging plates are arranged in parallel. The bottom ends of the first and second hanging plates that are close to each other are rotatably mounted with the same third rotating shaft. The third guide wheel is sleeved on the third rotating shaft.

[0013] By adopting the above technical solution, the first L-shaped plate and the second L-shaped plate form a second channel in the left and right direction, thereby installing the second guide wheel and the third guide wheel in the second channel from left to right in the vertical direction, limiting the cable in the front and back direction. Combined with the guidance of the second guide wheel and the third guide wheel, the cable can always maintain the preset direction during the winding and unwinding process.

[0014] In a further embodiment, the reel unit includes a spindle and a sleeve. The spindle is rotatably mounted on a base, and the sleeve is fitted onto the spindle. Both ends of the sleeve extend with centrifugal margins.

[0015] By adopting the above technical solution, the extension edges at both ends of the sleeve can axially limit the cable wound on the sleeve, preventing the cable from falling off from both ends of the reel unit during the winding and unwinding process.

[0016] In a further embodiment, the outer peripheral surfaces of the first guide wheel, the second guide wheel, and the third guide wheel are all provided with guide grooves.

[0017] By adopting the above technical solution, the guide groove can keep the cable in close contact with the guide wheel, preventing the cable from slipping during the guiding process and further improving the restraint effect on the cable.

[0018] In summary, this utility model has the following beneficial effects: 1. By setting the winch structure inside the cabin of the unmanned helicopter and using the stabilizing unit to constrain the cable released from the reel unit in real time, the cable can be prevented from shaking too much and the swing amplitude during the cable winding and unwinding process can be reduced, which can make the materials be transported stably and improve the stability of the unmanned helicopter when lifting heavy objects. 3. By designing the cable to pass through the left end of the third guide wheel, the unmanned helicopter inevitably experiences wind resistance during flight. This wind resistance creates an external force acting on the cable. The right angle of the first L-shape faces left, aligning with the helicopter's direction of travel. This cleverly guides the cable, causing it to naturally gravitate towards the third guide wheel under the influence of wind resistance. The tighter fit of the cable against the third guide wheel surface effectively reduces cable swaying and deviation during flight, ensuring a more stable and reliable guiding effect from the third guide wheel. This enhances the overall stability of the winch structure during heavy load handling. Attached Figure Description

[0019] Figure 1 This is an overall schematic diagram of the present invention, used to illustrate the connection relationship of the winch structure of the unmanned helicopter for heavy object handling; Figure 2 This is a structural schematic diagram of the stabilizing unit used to illustrate this utility model; Figure 3 This is a structural diagram illustrating the support frame and fixing frame of this utility model.

[0020] In the diagram, 1. Base; 2. Reel unit; 21. Main shaft; 22. Sleeve; 3. Stabilizing unit; 31. Screw; 32. Guide rod; 33. Slide table; 34. Fixed shaft; 35. First guide wheel; 36. Second guide wheel; 37. Third guide wheel; 4. Support frame; 41. First vertical plate; 42. Second vertical plate; 43. Limiting wheel; 5. Fixed frame; 51. First L-shaped plate; 52. Second L-shaped plate; 53. First hanging plate; 54. Second hanging plate; 6. Extension plate. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings.

[0022] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0023] Example 1: like Figures 1-3 As shown, a winch structure for heavy object handling by an unmanned helicopter includes an unmanned helicopter body and a winch structure body. The bottom end of the unmanned helicopter body is provided with a through hole for the cable to pass through. The winch structure body includes a base 1, a reel unit 2 and a stabilizing unit 3. The base 1 is fixedly installed in the cabin of the unmanned helicopter body. The reel unit 2 is rotatably installed on the base 1 from left to right. The reel unit 2 is used to wind and unwind the cable. The stabilizing unit 3 is disposed on the base 1 and is spaced at the front end of the reel unit 2. The stabilizing unit 3 is used to restrain the cable to prevent the cable from swaying too much. The stabilizing unit 3 includes a screw 31, a guide rod 32, a slide 33, a fixed shaft 34, a first guide wheel 35, a second guide wheel 36, and a third guide wheel 37. The screw 31 is rotatably mounted on the base 1 from left to right along its length. The guide rod 32 is fixedly mounted on the base 1 from left to right along its length. The guide rods 32 are parallel to and spaced at the front end of the screw 31. The rear end of the slide 33 has a threaded hole that passes through to the left and right, and the front end of the slide 33 has a sliding hole that passes through to the left and right. The slide 33 is slidably mounted on the guide rod 32 and the screw 31 through the threaded hole and the sliding hole. A support frame 4 is fixedly mounted on the top of the slide 33. The support frame 4 has a first channel formed inside for the cable to pass through in the front-back direction. An extension plate 6 is fixedly mounted on the bottom of the slide 33. A fixed shaft 34 is fixedly mounted on the bottom end of the extension plate 6. The fixed shafts 34 are spaced apart. Directly below the guide rod 32, the fixed shaft 34 is arranged parallel to the guide rod 32. Fixed seats are provided at both ends of the fixed shaft 34. The fixed seats are fixedly installed inside the cabin of the unmanned helicopter body. The first guide wheel 35 is rotatably installed inside the support frame 4. The first guide wheel 35 is used to guide the cable for the first time. The front end of the slide table 33 is provided with a vertical clearance hole. The same fixed frame 5 is fixedly installed between the slide table 33 and the bottom end of the extension plate 6. The interior of the fixed frame 5 forms a second channel for the cable to pass through in the left and right direction. The second guide wheel 36 is rotatably installed inside the fixed frame 5. The second guide wheel 36 is used to guide the cable for the second time. The third guide wheel 37 is rotatably installed at the inner bottom end of the fixed frame 5. The third guide wheel 37 is spaced below the second guide wheel 36. The third guide wheel 37 is used to guide the cable for the third time. The support frame 4 includes a first vertical plate 41, a second vertical plate 42, and a limiting wheel 43. The first vertical plate 41 is fixedly installed on the top of the slide table 33, and the second vertical plate 42 is fixedly installed on the top of the slide table 33. The second vertical plate 42 is spaced apart on the right side of the first vertical plate 41. The same first rotating shaft is rotatably installed at the center position of the side of the first vertical plate 41 and the second vertical plate 42 that are close to each other. The first guide wheel 35 is sleeved on the first rotating shaft. The same limiting wheel 43 is rotatably installed at the top end of the side of the first vertical plate 41 and the second vertical plate 42 that are close to each other. The mounting bracket 5 includes a first L-shaped plate 51, a second L-shaped plate 52, a first hanging plate 53, and a second hanging plate 54. The first L-shaped plate 51 is located at the bottom rear side of the clearance hole. One end of the first L-shaped plate 51 is fixedly connected to the slide table 33, and the other end of the first L-shaped plate 51 is fixedly connected to the extension plate 6. The right angle of the first L-shape faces the direction of travel of the unmanned helicopter body. The second L-shaped plate 52 is located at the bottom front side of the clearance hole. One end of the second L-shaped plate 52 is fixedly connected to the slide table 33, and the other end of the second L-shaped plate 52 is fixedly connected to the extension plate 6. The second L-shaped plate 52 and the first L-shaped plate 54 are connected together. 51 are arranged in parallel. The first L-shaped plate 51 and the second L-shaped plate 52 are rotatably mounted at the right angle position on the side close to each other, and the second guide wheel 36 is sleeved on the second rotating shaft. The first hanging plate 53 is fixedly installed in the vertical direction at the rear side of the right angle of the first L-shaped plate 51. The second hanging plate 54 is fixedly installed in the vertical direction at the front side of the right angle of the second L-shaped plate 52. The first hanging plate 53 and the second hanging plate 54 are arranged in parallel. The bottom end of the first hanging plate 53 and the second hanging plate 54 are rotatably mounted at the same third rotating shaft on the side close to each other, and the third guide wheel 37 is sleeved on the third rotating shaft. The reel unit 2 includes a main shaft 21 and a sleeve 22. The main shaft 21 is rotatably mounted on the base 1, and the sleeve 22 is sleeved on the main shaft 21. Both ends of the sleeve 22 have centrifugal extension edges. The outer circumferential surfaces of the first guide wheel 35, the second guide wheel 36 and the third guide wheel 37 are all provided with guide grooves. The first guide wheel 35 and the second guide wheel 36 have the same structure. The outer diameter of the third guide wheel 37 is smaller than the outer diameter of the second guide wheel 36, and the axis of the third guide wheel 37 and the axis of the second guide wheel 36 are collinear.

[0024] Specific implementation process: When moving heavy objects, the main shaft 21 of the reel unit 2 rotates, driving the sleeve 22 to rotate, and the cable is released from the sleeve 22. At the same time, the screw 31 rotates, and the slide 33 moves left and right along the axis 32 of the guide rod 32 by means of the threaded engagement between the threaded hole and the screw 31, and the guiding action of the sliding hole and the guide rod 32. This allows the stabilizing unit 3 to adaptively adjust its position according to the winding and unwinding action of the reel unit 2, so that the slide 33 can move left and right synchronously with the cable on the reel unit 2. The released cable first passes through the first channel formed by the first vertical plate 41 and the second vertical plate 42 in the support frame 4, is initially guided by the first guide wheel 35, and is prevented from falling out by the limiting wheel 43. Then it passes through the avoidance The cable enters the second channel formed by the first L-shaped plate 51 and the second L-shaped plate 52 through the hole, and is guided twice by the second guide wheel 36 and three times by the third guide wheel 37, thereby limiting and guiding the cable in multiple directions, restricting the cable's sway space, and thus preventing the cable from swinging significantly. When reeling in the cable, the reel unit 2 rotates in the opposite direction to wind the cable, and the stabilizing unit 3 also adaptively adjusts its position to guide the cable to retract in an orderly manner. The extension edges at both ends of the sleeve 22 can prevent the cable from falling off from both ends of the reel unit 2. The guide grooves on the first guide wheel 35, the second guide wheel 36 and the third guide wheel 37 can prevent the cable from slipping, ensuring the stability of the cable throughout the entire handling process, making material handling and unmanned helicopter lifting of heavy objects more stable.

[0025] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0026] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A winch structure for heavy object handling by an unmanned helicopter, comprising an unmanned helicopter body and a winch structure body, characterized in that: The winch structure body includes: The base (1) is fixedly installed inside the cabin of the unmanned helicopter body; A reel unit (2) is mounted on a base (1) from left to right. The reel unit (2) is used to wind and unwind cables. The stabilizing unit (3) is disposed on the base (1) and spaced apart at the front end of the reel unit (2). The stabilizing unit (3) is used to constrain the rope to prevent the rope from swaying too much.

2. The winch structure for unmanned helicopters used for heavy object handling according to claim 1, characterized in that, The stabilizing unit (3) includes: The screw (31) is rotatably mounted on the base (1) from left to right along its length. Guide rod (32), the guide rod (32) is fixedly installed on the base (1) from left to right along the length direction, and the guide rod (32) is arranged parallel to each other at the front end of the screw (31); The slide (33) has a threaded hole that runs through the left and right sides at its rear end and a sliding hole that runs through the left and right sides at its front end. The slide (33) is slidably mounted on the guide rod (32) and the screw (31) through the threaded hole and the sliding hole. A support frame (4) is fixedly mounted on the top of the slide (33). A first channel for the cable to pass through in the front and back direction is formed inside the support frame (4). An extension plate (6) is fixedly mounted on the bottom of the slide (33). Fixed shaft (34), the bottom end of the extension plate (6) is fixedly installed with fixed shaft (34), the fixed shaft (34) is spaced apart directly below the guide rod (32), the fixed shaft (34) and the guide rod (32) are arranged in parallel, and fixed seats are respectively provided at both ends of the fixed shaft (34), and the fixed seats are fixedly installed in the cabin of the unmanned helicopter body; The first guide wheel (35) is rotatably mounted inside the support frame (4) and is used to initially guide the cable. The second guide wheel (36) has a through clearance hole at the front end of the slide (33). The slide (33) and the bottom end of the extension plate (6) are fixedly installed with the same fixing frame (5). The inside of the fixing frame (5) forms a second channel for the cable to pass through in the left and right direction. The second guide wheel (36) is rotatably installed inside the fixing frame (5). The second guide wheel (36) is used to guide the cable in a secondary manner. The third guide wheel (37) is rotatably mounted on the inner bottom end of the fixed frame (5) and is used to guide the cable three times.

3. The winch structure for unmanned helicopters used for heavy object handling according to claim 2, characterized in that, The support frame (4) includes: The first vertical plate (41) is fixedly installed on the top of the slide table (33); The second vertical plate (42) is fixedly installed on the top of the slide table (33). The second vertical plate (42) is spaced apart on the right side of the first vertical plate (41). The first vertical plate (41) and the second vertical plate (42) are rotatably mounted on the center position of the side of the first vertical plate (41) and the second vertical plate (42) that are close to each other. The first guide wheel (35) is sleeved on the first rotating shaft. The same limiting wheel (43) is rotatably mounted on the top of the side of the first vertical plate (41) and the second vertical plate (42) that are close to each other.

4. The winch structure for heavy object handling by an unmanned helicopter according to claim 2, characterized in that, The fixing frame (5) includes: The first L-shaped plate (51) is located at the bottom rear side of the clearance hole. One end of the first L-shaped plate (51) is fixedly connected to the slide (33), and the other end of the first L-shaped plate (51) is fixedly connected to the extension plate (6). The right angle of the first L-shape faces the direction of travel of the unmanned helicopter body. The second L-shaped plate (52) is located at the bottom front side of the clearance hole. One end of the second L-shaped plate (52) is fixedly connected to the slide table (33), and the other end of the second L-shaped plate (52) is fixedly connected to the extension plate (6). The second L-shaped plate (52) and the first L-shaped plate (51) are arranged in parallel. The first L-shaped plate (51) and the second L-shaped plate (52) are rotatably mounted on the same second rotating shaft at the right angle position on the side close to each other. The second guide wheel (36) is sleeved on the second rotating shaft. The first hanging plate (53) is fixedly installed in the vertical direction at the rear side of the right angle of the first L-shaped plate (51); The second hanging plate (54) is fixedly installed in the vertical direction at the front side of the right angle of the second L-shaped plate (52). The first hanging plate (53) and the second hanging plate (54) are arranged in parallel. The bottom ends of the first hanging plate (53) and the second hanging plate (54) are rotatably installed with the same third rotating shaft on the side close to each other. The third guide wheel (37) is sleeved on the third rotating shaft.

5. The winch structure for unmanned helicopters used for heavy object handling according to claim 1, characterized in that: The reel unit (2) includes a main shaft (21) and a sleeve (22). The main shaft (21) is rotatably mounted on the base (1), and the sleeve (22) is sleeved on the main shaft (21). Both ends of the sleeve (22) have centrifugal extensions.

6. The winch structure for unmanned helicopters used for heavy object handling according to claim 2, characterized in that: The outer circumferential surfaces of the first guide wheel (35), the second guide wheel (36) and the third guide wheel (37) are all provided with guide grooves.

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