CN213862654U - Light airplane flap follow-up device - Google Patents
Light airplane flap follow-up device Download PDFInfo
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- CN213862654U CN213862654U CN202023058662.4U CN202023058662U CN213862654U CN 213862654 U CN213862654 U CN 213862654U CN 202023058662 U CN202023058662 U CN 202023058662U CN 213862654 U CN213862654 U CN 213862654U
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Abstract
The utility model discloses a light airplane flap follow-up device, which comprises a flap control unit and a feedback unit; the flap control unit comprises a flap handle, a handle mounting support, a flap panel, a cam structure, an upper micro-switch, a lower micro-switch, a support arm assembly and a pointer, and the other end of the support arm assembly is fixedly connected with a feedback steel cable; the feedback unit comprises a bell-shaped rocker arm, a clamp, a slide rail, an elastic thread sleeve, a flap follow-up support and a flap follow-up support; the follow-up steel cable is fixedly connected with the clip through the elastic threaded sleeve; the flap follow-up support is fixedly installed on the flap follow-up support, one end of the bell-shaped rocker arm is hinged to the flap follow-up support, the feedback steel cable is hinged to the bell-shaped rocker arm, the other end of the bell-shaped rocker arm is provided with a U-shaped groove, the slide rail is fixedly installed on the flap follow-up support, and a bolt on the clamp penetrates through the U-shaped groove and the slide rail and can reciprocate in the slide rail. The utility model has the advantages of simple and reliable action and low failure rate.
Description
Technical Field
The utility model relates to a general aviation technical field especially relates to a light-duty aircraft wing flap servo device.
Background
The flap feedback system of the existing mainstream light aircraft mainly adopts the mode of controlling the forward and reverse rotation of a flap motor through a sensor and a monitor, so that the load of an aircraft power supply is greatly increased, the portability of the aircraft is influenced, the structure is too complex, the difficulty of maintenance is increased, and the cost is increased.
SUMMERY OF THE UTILITY MODEL
To the deficiency of the prior art, the technical problem to be solved by the present patent application is: how to provide a simple action is reliable, and the fault rate is low, overhauls the convenient light-duty aircraft wing flap servo-device of maintenance.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a flap follow-up device of a light airplane comprises a flap control unit and a feedback unit; the flap control unit comprises a flap handle, a handle mounting support, a flap panel, a cam structure, an upper micro-switch, a lower micro-switch, a support arm assembly and a pointer; the flap panel is fixedly arranged on the handle mounting support, a handle groove and a pointer groove are formed in the flap panel, and the flap handle and the pointer respectively penetrate through the handle groove and the pointer groove; the cam structure is fixedly connected with a force arm connected with the handle, the cam structure is coaxially and rotatably connected with the support arm assembly, the upper micro-switch and the lower micro-switch are both fixedly arranged on the support arm assembly, and the support arm assembly drives the upper micro-switch and the lower micro-switch to be in contact with or separated from the cam structure; the front end of the support arm assembly is fixedly connected with the pointer, and the other end of the support arm assembly is fixedly connected with a feedback steel cable; the feedback unit comprises a bell-shaped rocker arm, a clamp, a slide rail, an elastic thread sleeve, a flap follow-up support and a flap follow-up support; the follow-up steel cable is fixedly connected with the clip through the elastic threaded sleeve; the flap follow-up support is fixedly installed on the flap follow-up support, one end of the bell-shaped rocker arm is hinged to the flap follow-up support, the feedback steel cable is hinged to the bell-shaped rocker arm, the other end of the bell-shaped rocker arm is provided with a U-shaped groove, the slide rail is fixedly installed on the flap follow-up support, and a bolt on the clamp penetrates through the U-shaped groove and the slide rail and can reciprocate in the slide rail.
Therefore, the flap switch controls the power-on and power-off of the flap motor by manually shifting the flap handle, and the flap handle is shifted into 0-degree gear, 15-degree gear and 30-degree gear so as to control the deflection angle of the flap. Be equipped with the flap panel in flap handle installation department, flap handle and pointer are installed in the flap panel outside, and all the other structures are then installed at the flap panel inboard, and handle erection support is connected to the flap panel, facilitates the use. The cam structure obtains any expected motion effect through a proper profile, is simple and compact in structure, and is separated from the contact point of the micro-switch in a point contact mode, so that the opening and closing of the flap control circuit are achieved. The front end of the supporting arm component is connected with a pointer, the pointer and the cam rotate coaxially, and the rotation angle is displayed on the flap panel by the pointer. The feedback steel cable feeds the position of the flap back to the support arm assembly to drive the support arm assembly to rotate, so that the cam is separated from the micro-switch, the circuit is disconnected, the motor stops rotating, and the flap stops working. The flap motor starts to operate after obtaining a signal of a flap switch, the signal is transmitted to the feedback unit through the elastic threaded sleeve connected to the follow-up steel cable, the elastic threaded sleeve and the clamp are clamped tightly, the clamp is driven to move by the left-right movement of the elastic threaded sleeve, and a bolt connected with the clamp penetrates through the bell-shaped rocker arm and the sliding rail to enable the clamp to do linear reciprocating motion in the U-shaped groove. The clamp moves linearly on the slide rail, so that the bell-shaped rocker with one end fixed to the flap follow-up support is driven to rotate, the middle part of the bell-shaped rocker is connected with the feedback steel cable, the bell-shaped rocker rotates to drive the feedback steel cable to be wound and unwound, and the feedback steel cable transmits a signal to the switch to achieve automatic disconnection of a circuit. The other end of the bell-shaped rocker arm is provided with a U-shaped groove, and when the clip drives the bell-shaped rocker arm to rotate, the clip can slide on the U-shaped groove to adjust the distance, so that the closed ring state is integrally achieved.
The cam structure is riveted with a force arm connected with the flap handle, and two end faces of the cam structure are respectively provided with a phenolic plastic gasket. Can better reduce abrasion and vibration.
And a nylon gasket is further arranged between the support arm assembly and the handle mounting support and is positioned above the phenolic plastic gasket at the upper end. So as to increase the damping sense and make the mechanical structure more in line with the ergonomics.
The feedback steel cable penetrates through the perforated bolt to be fixedly connected with the support arm assembly, and a gasket and a distance bushing for clamping the feedback steel cable are arranged on the perforated bolt. The steel cable is clamped.
Wherein, the handle groove on the flap panel is provided with a stopping step. The position of the handle is fixed.
The distance sleeve, the composite washer, the plastic washer and the steel washer are all sleeved on the bolt connected with the clamp. The other end of the bell-shaped rocker arm is provided with a U-shaped groove penetrating through the bush, and when the clip drives the bell-shaped rocker arm to rotate, the lower connecting bush slides on the U-shaped groove to adjust the distance, so that the closed ring state is integrally achieved.
Wherein, the support arm component is also connected with a return spring.
The light aircraft flap follow-up device adopts mechanical structures such as an up-and-down stirring flap handle, a cam structure, a feedback steel cable, a support arm component, a bell-shaped rocker arm, a clamp and the like to form an automatic feedback structure, a servo feedback unit performs automatic feedback after a motor rotates forwards, a circuit is disconnected when a specified position is reached, the handle is stirred in the opposite direction to rotate the motor backwards, the flap reaches the specified position, the support arm component rebounds, and the circuit is disconnected again. The light aircraft flap follow-up device adopts a purely mechanical structure to achieve a feedback effect, is simple in structure and high in precision, facilitates fault finding and maintenance, saves cost compared with conventional sensor feedback, and is convenient to install, safe and reliable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of a flap control unit of a flap follower of a light aircraft according to the present invention.
Fig. 2 is a schematic view of another orientation of fig. 1.
Fig. 3 is a schematic structural diagram of the feedback unit in fig. 1.
Fig. 4 is a schematic view of the connection of the catch, bell-shaped rocker arm and sled of fig. 3.
Fig. 5 is a schematic structural view of a support arm assembly.
FIG. 6 is a schematic view of the connection of the feedback cable.
Fig. 7 is a schematic diagram of a cam structure and upper and lower micro-switches.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. In the present embodiment, the terms "upper", "lower", "left", "right", "front", "rear", "upper end", "lower end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description, but do not indicate or imply that the designated device or element must have a specific orientation, be constructed in a specific orientation, or be operated, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-7, a flap follower for a lightweight aircraft includes a flap manipulating unit and a feedback unit; the flap control unit comprises a flap handle 1, a handle mounting support 2, a flap panel 3, a cam structure 4, an upper micro-switch 5, a lower micro-switch 6, a support arm assembly 7 and a pointer 8; the flap panel 3 is fixedly arranged on the handle mounting support 2, a handle groove and a pointer groove are formed in the flap panel 3, and the flap handle 1 and the pointer 8 respectively penetrate through the handle groove and the pointer groove; the cam structure 4 is fixedly connected with a force arm connected with the handle, the cam structure 4 is coaxially and rotatably connected with a support arm assembly 7, the upper micro-switch 5 and the lower micro-switch 6 are both fixedly arranged on the support arm assembly 7, and the support arm assembly 7 drives the upper micro-switch 5 and the lower micro-switch 6 to be in contact with or separated from the cam structure 4; the front end of the support arm component 7 is fixedly connected with a pointer 8, and the other end of the support arm component 7 is fixedly connected with a feedback steel cable 9; the feedback unit comprises a bell-shaped rocker arm 11, a clamp 12, a slide rail 13, a turnbuckle 14, a flap follow-up support 15 and a flap follow-up support 16; the follow-up steel cable is fixedly connected with the clip 12 through the elastic thread sleeve 14; the flap follow-up support 16 is fixedly installed on a flap follow-up support 15, one end of the bell-shaped rocker arm 11 is hinged to the flap follow-up support 16, the feedback steel cable 9 is hinged to the bell-shaped rocker arm 11, the other end of the bell-shaped rocker arm 11 is provided with a U-shaped groove, the slide rail 13 is fixedly installed on the flap follow-up support 15, and the bolt 7 on the clamp 12 penetrates through the U-shaped groove and the slide rail 13 and can reciprocate in the slide rail 13.
Therefore, the flap switch controls the power-on and power-off of the flap motor by manually shifting the flap handle, and the flap handle is shifted into 0-degree gear, 15-degree gear and 30-degree gear so as to control the deflection angle of the flap. Be equipped with the flap panel in flap handle installation department, flap handle and pointer are installed in the flap panel outside, and all the other structures are then installed at the flap panel inboard, and handle erection support is connected to the flap panel, facilitates the use. The cam structure obtains any expected motion effect through a proper profile, is simple and compact in structure, and is separated from the contact point of the micro-switch in a point contact mode, so that the opening and closing of the flap control circuit are achieved. The front end of the supporting arm component is connected with a pointer, the pointer and the cam rotate coaxially, and the rotation angle is displayed on the flap panel by the pointer. The feedback steel cable feeds the position of the flap back to the support arm assembly to drive the support arm assembly to rotate, so that the cam is separated from the micro-switch, the circuit is disconnected, the motor stops rotating, and the flap stops working. The flap motor starts to operate after obtaining a signal of a flap switch, the signal is transmitted to the feedback unit through the elastic threaded sleeve connected to the follow-up steel cable, the elastic threaded sleeve and the clamp are clamped tightly, the clamp is driven to move by the left-right movement of the elastic threaded sleeve, and a bolt connected with the clamp penetrates through the bell-shaped rocker arm and the sliding rail to enable the clamp to do linear reciprocating motion in the U-shaped groove. The clamp moves linearly on the slide rail, so that the bell-shaped rocker with one end fixed to the flap follow-up support is driven to rotate, the middle part of the bell-shaped rocker is connected with the feedback steel cable, the bell-shaped rocker rotates to drive the feedback steel cable to be wound and unwound, and the feedback steel cable transmits a signal to the switch to achieve automatic disconnection of a circuit. The other end of the bell-shaped rocker arm is provided with a U-shaped groove, and when the clip drives the bell-shaped rocker arm to rotate, the clip can slide on the U-shaped groove to adjust the distance, so that the closed ring state is integrally achieved.
The cam structure 4 is riveted with a force arm connected with the flap handle 1, and two end faces of the cam structure 4 are respectively provided with a phenolic plastic gasket 18. Can better reduce abrasion and vibration.
And a nylon gasket 19 is further arranged between the support arm assembly 7 and the handle mounting support 2, and the nylon gasket 19 is positioned above a phenolic plastic gasket 18 at the upper end. So as to increase the damping sense and make the mechanical structure more in line with the ergonomics.
Wherein the feedback steel cable 9 passes through an aperture bolt 20 to be fixedly connected with the support arm assembly 7, and the aperture bolt 20 is provided with a gasket 21 and a distance bush 22 for clamping the feedback steel cable. The steel cable is clamped.
Wherein the handle slot on the flap panel 3 is provided with a stop step. The position of the handle is fixed.
A distance bushing 23 and a composite washer 24 are arranged between the clip 12 and the bell-shaped rocker arm 11, a plastic washer 25 is arranged between the bell-shaped rocker arm 11 and the slide rail 13, a steel washer 27 is further arranged between the slide rail 13 and a lock nut 26 screwed on the bolt 17, and the distance bushing, the composite washer, the plastic washer and the steel washer are all sleeved on the bolt connected with the clip. The other end of the bell-shaped rocker arm is provided with a U-shaped groove penetrating through the bush, and when the clip drives the bell-shaped rocker arm to rotate, the lower connecting bush slides on the U-shaped groove to adjust the distance, so that the closed ring state is integrally achieved.
Wherein a return spring 28 is also connected to the support arm assembly.
The working principle is as follows:
the flap handle is shifted downwards to a stop block of 15 degrees, the cam structure rotates upwards and is contacted with the upper micro-switch, a circuit is closed, the flap motor starts to operate to drive the flap steel cable to move rightwards, the elastic thread sleeve connected with the flap steel cable drives the clamp which is blocked to move rightwards, so that the bell-shaped rocker arm deflects rightwards and drives the feedback steel cable connected to the bell-shaped rocker arm to pull, the feedback steel cable connected to the support arm assembly at the other end is driven to pull, the micro-switch is fixed on the support arm assembly, the support arm assembly is driven to rotate upwards by the pulling of the feedback steel cable, the contact of the micro-switch is disconnected with the cam structure, the circuit is disconnected, and the flap is kept at a deflection position of 15 degrees. The handle is continuously stirred downwards to the stop block of 30 degrees, the cam structure continuously rotates upwards, the movement principle is the same as that of 0-15 degrees, and finally the flap stops at the position of 30 degrees. When the flap is required to recover to the position of 0 degree, the flap handle is pulled back to the position of 0 degree from the position of 30 degrees, the cam structure rotates downwards to touch the lower micro-switch, the circuit closing flap motor starts to rotate reversely, the flap steel cable moves leftwards, the clamp drives the bell-shaped rocker to rotate leftwards and gradually recovers to the initial position, the feedback steel cable returns leftwards, the spring connected to the support arm assembly recovers from the tightening state, the support arm assembly slowly resets, the lower micro-switch is disconnected with the cam, the circuit is disconnected, and the flap recovers to the position of 0 degree.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (7)
1. The flap follow-up device of the light airplane is characterized by comprising a flap control unit and a feedback unit;
the flap control unit comprises a flap handle, a handle mounting support, a flap panel, a cam structure, an upper micro-switch, a lower micro-switch, a support arm assembly and a pointer;
the flap panel is fixedly arranged on the handle mounting support, a handle groove and a pointer groove are formed in the flap panel, and the flap handle and the pointer respectively penetrate through the handle groove and the pointer groove;
the cam structure is fixedly connected with a force arm connected with the handle, the cam structure is coaxially and rotatably connected with the support arm assembly, the upper micro-switch and the lower micro-switch are both fixedly arranged on the support arm assembly, and the support arm assembly drives the upper micro-switch and the lower micro-switch to be in contact with or separated from the cam structure; the front end of the support arm assembly is fixedly connected with the pointer, and the other end of the support arm assembly is fixedly connected with a feedback steel cable;
the feedback unit comprises a bell-shaped rocker arm, a clamp, a slide rail, an elastic thread sleeve, a flap follow-up support and a flap follow-up support;
the follow-up steel cable is fixedly connected with the clip through the elastic threaded sleeve;
the flap follow-up support is fixedly installed on the flap follow-up support, one end of the bell-shaped rocker arm is hinged to the flap follow-up support, the feedback steel cable is hinged to the bell-shaped rocker arm, the other end of the bell-shaped rocker arm is provided with a U-shaped groove, the slide rail is fixedly installed on the flap follow-up support, and a bolt on the clamp penetrates through the U-shaped groove and the slide rail and can reciprocate in the slide rail.
2. The flap servo device of a light airplane as claimed in claim 1, wherein the cam structure is riveted with a force arm connected with a flap handle, and phenolic plastic gaskets are respectively arranged on two end faces of the cam structure.
3. The flap follower for light aircraft of claim 2 wherein a nylon washer is disposed between the support arm assembly and the handle mounting bracket, said nylon washer being positioned above the phenolic washer at the upper end.
4. The flap follower of light aircraft as claimed in claim 1, wherein the feedback cable is fixedly connected to the support arm assembly through a bolt having a washer and a distance bushing for clamping the feedback cable.
5. The flap follower of a light aircraft as claimed in claim 1, wherein the handle slot on the flap panel is provided with a stop step.
6. The flap servo device of the light airplane as claimed in claim 1, wherein a distance bushing and a composite washer are arranged between the clip and the bell-shaped rocker arm, a plastic washer is arranged between the bell-shaped rocker arm and the slide rail, a steel washer is further arranged between the slide rail and a lock nut screwed on a bolt, and the distance bushing, the composite washer, the plastic washer and the steel washer are all sleeved on the bolt connected with the clip.
7. The flap follower for light weight aircraft of claim 1 wherein a return spring is further connected to said support arm assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023058662.4U CN213862654U (en) | 2020-12-18 | 2020-12-18 | Light airplane flap follow-up device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023058662.4U CN213862654U (en) | 2020-12-18 | 2020-12-18 | Light airplane flap follow-up device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213862654U true CN213862654U (en) | 2021-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023058662.4U Active CN213862654U (en) | 2020-12-18 | 2020-12-18 | Light airplane flap follow-up device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213862654U (en) |
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2020
- 2020-12-18 CN CN202023058662.4U patent/CN213862654U/en active Active
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