Clutch of unmanned helicopter

Abstract

The utility model provides an unmanned helicopter clutch, which belongs to the technical field of unmanned aerial vehicles and comprises a clutch gland, an engine adapter, an inner friction plate, an outer friction plate and an adjusting component, the adjusting component comprises a compression bolt, a top sleeve, a top sleeve lining and a fixing bolt, two ends of the top sleeve are respectively in threaded connection with one end of the top sleeve lining and the compression bolt, and the fixing bolt is fixed on the top sleeve lining. The other end of the top sleeve lining is fixed on one side of the engine adapter, the clutch gland is provided with a plurality of gland through holes which are symmetrically distributed, and the compression bolts penetrate through the gland through holes; the two or four adjusting assemblies are symmetrically distributed. According to the clutch of the unmanned helicopter, the requirements for manual combination and separation state keeping in the clutch debugging process can be met without additionally adopting complex tools, the debugging cost is reduced, the debugging efficiency is improved, and operation is easy, convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to an unmanned helicopter clutch. Background Art

[0002] During the debugging process of unmanned helicopters, it is often necessary to manually engage the clutch, or keep the clutch in a disengaged state after the engine is running. However, some existing unmanned helicopter clutches (for example, the unmanned helicopter clutch disclosed in patent CN108131400A) do not have the ability to manually engage and maintain the disengaged state, and need to be completed with the help of tooling. The tooling has a complex structure and is difficult to install. The process of manually locking and maintaining the disengaged state is time-consuming and laborious. Utility Model Content

[0003] In view of the above analysis, the embodiment of the utility model aims to provide an unmanned helicopter clutch to solve the problem that the manual engagement and disengagement of the unmanned helicopter clutch requires the help of complex tooling, and the process of manual locking and disengagement is time-consuming and labor-intensive.

[0004] The purpose of this utility model is mainly achieved through the following technical solutions:

[0005] A clutch for an unmanned helicopter comprises a clutch cover, an engine adapter plate, an inner friction plate, an outer friction plate and an adjusting assembly; the clutch cover and the engine adapter plate are arranged parallel to each other, and the inner friction plate, the outer friction plate and a plurality of adjusting assemblies are located between the clutch cover and the engine adapter plate; the clutch cover is provided with a plurality of symmetrically distributed cover through holes; the adjusting assembly comprises a clamping bolt, a top sleeve and a top sleeve liner, the two ends of the top sleeve are respectively threadedly connected with one end of the top sleeve liner and the clamping bolt, the other end of the top sleeve liner is fixed to one side of the engine adapter plate, and the clamping bolt passes through the cover through hole; the adjusting assembly can keep the inner friction plate and the outer friction plate in a clamped or loosened state, so as to meet the demand for debugging the clutch.

[0006] Furthermore, the engine adapter plate is provided with a plurality of symmetrically distributed adapter plate through holes.

[0007] Furthermore, the other end of the top sleeve lining is fixed in the through hole of the adapter plate.

[0008] Furthermore, one side where the through hole of the adapter plate is connected to the inner lining of the top sleeve is a countersunk hole.

[0009] Furthermore, the countersink is a polygonal countersink, and the other end of the top sleeve liner is a polygonal column.

[0010] Furthermore, the adjustment assembly also includes a fixing screw, which is used to fix the other end of the top sleeve lining in the through hole of the adapter plate.

[0011] Furthermore, the internal thread holes at both ends of the top sleeve are connected, and the external thread diameters of the top sleeve lining and the clamping bolt are the same.

[0012] Furthermore, the outer surface of the top sleeve is provided with symmetrical grooves.

[0013] Furthermore, the outer surface of the top sleeve is provided with symmetrical convex strips.

[0014] Furthermore, the regulating components are divided into two or four groups and are symmetrically distributed.

[0015] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0016] (1) The unmanned helicopter clutch of the utility model can meet the requirements of manual engagement and disengagement during clutch debugging by installing an adjustment component on the clutch without the need for additional complex tooling, thereby reducing debugging costs and improving debugging efficiency.

[0017] (2) The clutch adjustment assembly of the unmanned helicopter of the utility model can keep the clutch in a disengaged state by only screwing the top sleeve, which is convenient and quick.

[0018] (3) The adjustment assembly of the unmanned helicopter clutch of the utility model can complete the manual engagement of the clutch only by locking the clamping bolt and the top sleeve, and the operation is simple.

[0019] (4) The unmanned helicopter clutch of the utility model makes the installation of the adjustment component simple and firm by providing the pressure cover through hole and the adapter plate through hole.

[0020] (5) The unmanned helicopter clutch of the utility model can effectively prevent the top sleeve lining from rotating by setting the through hole of the adapter plate as a polygonal countersunk hole, thereby ensuring the operational stability and reliability of the adjustment component.

[0021] (6) The unmanned helicopter clutch of the utility model can make the operation of the adjustment component easier and more labor-saving by providing grooves or convex strips on the outer surface of the top sleeve.

[0022] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the following content, and some advantages can be obvious from the description or understood by implementing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the contents specifically pointed out in the text and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are only used for the purpose of illustrating specific embodiments and are not to be considered as limiting the present invention. In the entire drawings, the same reference symbols represent the same components.

[0024] Figure 1 It is a schematic diagram of the overall structure of an unmanned helicopter clutch of a specific embodiment;

[0025] Figure 2 It is a structural schematic diagram of a clutch locked engagement state in a specific embodiment;

[0026] Figure 3 It is a schematic structural diagram of a clutch in a specific embodiment that remains in a disengaged state.

[0027] Reference numerals:

[0028] 1-clutch pressure cover; 11-pressure cover through hole; 2-engine adapter plate; 21-adapter plate through hole; 3-spring; 4-inner friction plate; 5-outer friction plate; 6-swing block rocker arm; 71-clamping bolt; 72-top sleeve; 73-top sleeve lining; 74-fixing screw. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0030] Example 1

[0031] A specific embodiment of the utility model is as follows Figure 1 and Figure 2 As shown, the utility model provides an unmanned helicopter clutch, including a clutch cover 1, an engine adapter plate 2, a spring 3, an inner friction plate 4, an outer friction plate 5, a swing block rocker arm 6 and an adjustment component 7.

[0032] The unmanned helicopter clutch of the utility model has a low friction force between the inner friction plate 4 and the outer friction plate 5 when the engine speed is low, and the engine drives the engine adapter plate 2 to rotate; when the engine speed increases, the swing block rocker arm 6 can push the clutch cover 1 under the action of centrifugal force, and the clutch cover 1 and the engine adapter plate 2 compress the spring 3, so that the inner friction plate 4 and the outer friction plate 5 squeeze each other and drive the coupling to rotate, realizing the clutch function of driving the engine adapter plate 2 to rotate when the engine is low speed, and driving the coupling 6 to rotate when the engine is high speed. The above working principle is the existing technology, and the relevant technical solutions do not belong to the protection scope of the utility model.

[0033] The adjustment component 7 of the utility model is connected to the clutch cover 1 and the engine adapter plate 2, and can quickly manually engage or keep the clutch in a disengaged state, thereby eliminating the need for complex tooling. It can meet the needs of clutch debugging, has a simple structure, and is easy to operate, thereby improving the work efficiency of the debugging process.

[0034] like Figure 1 As shown, the adjustment assembly 7 includes a clamping bolt 71, a top sleeve 72, a top sleeve liner 73 and a fixing screw 74;

[0035] The top sleeve 72 is a cylindrical component with threaded holes at both ends. The threaded hole at one end of the top sleeve 72 matches the clamping bolt 71 , and the other end is threadedly connected to the top sleeve liner 73 .

[0036] The top sleeve liner 73 is also a cylindrical component, with a blind hole at the center of one end, and an internal thread matching the fixing screw 74 in the blind hole; an external thread is provided on the outer periphery of the other end to match the threaded hole of the top sleeve 72.

[0037] The clutch cover 1 is provided with a plurality of symmetrically distributed cover through holes 11 . After the studs of the clamping bolts 71 are inserted into the clutch through the cover through holes 11 , they are threadedly connected with one end of the top sleeve 72 .

[0038] The engine adapter plate 2 is provided with a plurality of symmetrically distributed adapter plate through holes 21, one side of the adapter plate through hole 21 is connected to the blind hole of the top sleeve lining 73, and the fixing screw 74 is inserted from the other side of the adapter plate through hole 21 and connected with the top sleeve lining 73 and the blind hole internal thread of the top sleeve lining 73.

[0039] Optionally, one side where the adapter plate through hole 21 is connected to the top sleeve lining 73 is a countersunk hole, and one end of the top sleeve lining 73 is located in the countersunk hole, so that the position of the top sleeve lining 73 is more stable and the fixation is more secure. Optionally, the inner side wall of the countersunk hole is a polygon, and the outer wall of one end of the top sleeve lining 73 matches the polygonal countersunk hole to prevent the top sleeve lining 73 from rotating when the top sleeve 72 rotates around the outer periphery of the top sleeve lining 73.

[0040] It should be noted that the lengths of the threaded holes at both ends of the top sleeve 72 must be respectively equivalent to the lengths of the external threads of the clamping bolt 71 and the top sleeve lining 73, so as to ensure that the top sleeve 72 can be screwed to a position where it fits with the engine adapter plate 2 at one end, and can also be screwed to a position where it fits with the clutch cover 1 while being locked with the clamping bolt 71 at the other end.

[0041] Optionally, to facilitate production and processing, the threaded holes at both ends of the top sleeve 72 can be connected, and the outer thread diameters of the clamping bolt 71 and the top sleeve liner 73 can also be the same.

[0042] like Figure 2As shown, when the clutch needs to be debugged in a locked state, first ensure that the clutch is in a free state, then screw at least two symmetrically distributed top sleeves 72 from the top sleeve inner lining 73 outward toward the engine adapter plate 2 until its end surface fits the engine adapter plate 2; next, tighten the clamping bolts 71 from the clutch cover 1 inward to drive the clutch cover 1 to press the inner friction plate 4 and the outer friction plate 5 until there is no relative movement. At this time, the clutch has been locked to the engaged state, meeting the need for manual engagement of the clutch during the debugging process.

[0043] like Figure 3 When the clutch needs to be debugged in the disengaged state, the clutch is also first ensured to be in a free state, and then at least two symmetrically distributed top sleeves 72 are screwed outside the top sleeve inner lining 73 in the direction of the clutch gland 1 until its end surface fits with the clutch gland 1. At this time, the clutch gland 1 is supported by at least two symmetrically arranged and tightened top sleeves 72, so the swing block rocker arm 6 cannot press the inner friction plate 4 and the outer friction plate 5 to no relative movement. At this time, the clutch is kept in the disengaged state, meeting the requirement that the clutch be kept in the disengaged state during the debugging process.

[0044] Optionally, considering the number and distribution of springs 3 and swing-block rocker arms 6 , the number of adjustment components 7 can be set to 2 or 4 groups, and they can be symmetrically arranged between the springs 3 and the swing-block rocker arms 6 .

[0045] Optionally, in order to save effort when screwing the top sleeve 72, symmetrical grooves or convex strips are provided on the outer surface of the top sleeve 72, and the surface of the top sleeve 72 can also be set as a polygonal cylinder to make the top sleeve 72 easy to screw.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. An unmanned helicopter clutch, characterized in that: It comprises a clutch cover (1), an engine adapter plate (2), an inner friction plate (4), an outer friction plate (5) and an adjustment component (7); The clutch cover (1) and the engine adapter plate (2) are arranged parallel to each other, and the inner friction plate (4), the outer friction plate (5) and the plurality of adjustment components (7) are located between the clutch cover (1) and the engine adapter plate (2); The clutch cover (1) is provided with a plurality of symmetrically distributed cover through holes (11); The adjustment assembly (7) comprises a clamping bolt (71), a top sleeve (72) and a top sleeve liner (73), two ends of the top sleeve (72) are respectively threadedly connected to one end of the top sleeve liner (73) and the clamping bolt (71), the other end of the top sleeve liner (73) is fixed to one side of the engine adapter plate (2), and the clamping bolt (71) passes through the gland through hole (11); The adjustment component (7) can keep the inner friction plate (4) and the outer friction plate (5) in a compressed or released state, thereby meeting the requirements for clutch debugging.

2. The unmanned helicopter clutch according to claim 1, characterized in that: The engine adapter plate (2) is provided with a plurality of symmetrically distributed adapter plate through holes (21).

3. The unmanned helicopter clutch according to claim 2, characterized in that: The other end of the top sleeve lining (73) is fixed in the adapter plate through hole (21).

4. The unmanned helicopter clutch according to claim 3, characterized in that: The side where the adapter plate through hole (21) is connected to the top sleeve lining (73) is a countersunk hole.

5. The unmanned helicopter clutch according to claim 4, characterized in that: The countersunk hole is a polygonal countersunk hole, and the other end of the top sleeve liner (73) is a polygonal column.

6. The unmanned helicopter clutch according to claim 5, characterized in that: The adjustment assembly (7) further comprises a fixing screw (74), wherein the fixing screw (74) is used to fix the other end of the top sleeve liner (73) in the adapter plate through hole (21).

7. The unmanned helicopter clutch according to claim 6, characterized in that: The internal threaded holes at both ends of the top sleeve (72) are connected, and the external thread diameters of the top sleeve lining (73) and the clamping bolt (71) are the same.

8. The unmanned helicopter clutch according to any one of claims 1 to 7, characterized in that: The outer surface of the top sleeve (72) is provided with symmetrical grooves.

9. The unmanned helicopter clutch according to any one of claims 1 to 7, characterized in that: The outer surface of the top sleeve (72) is provided with symmetrical convex strips.

10. The unmanned helicopter clutch according to any one of claims 1 to 7, characterized in that: The regulating components (7) are in two or four groups and are symmetrically distributed.

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