Model airplane steering engine of modular structure

Abstract

The utility model relates to the technical field of model airplane steering engines, and discloses a model airplane steering engine with a modular structure, which comprises a transmission module, a driving module, a control module, a potentiometer, a steering wheel and a rubber sealing gasket, the transmission module forms a transmission box through an upper shell and a middle mounting plate, and a gear set is arranged in the transmission box; the driving module is composed of a driving motor, a motor limiting block and a protective shell, and the driving motor drives a gear set to do decelerating motion; the control module is composed of a control panel installed on the bottom shell and connected with the potentiometer and the driving motor through wires. The potentiometer is installed in the potentiometer clamping groove and connected with the output gear shaft in a matched mode through a U-shaped groove. The steering wheel is matched and connected with the output gear shaft through a spline; the three modules are integrally assembled into a complete steering engine through screws. According to the utility model, through the modular structural design, the steering engine can be assembled in a split manner, so that the steering engine can be quickly and independently disassembled and assembled during testing and overhauling, can be quickly disassembled and replaced during faults, and has excellent practical significance.

Description

Technical Field

[0001] The utility model belongs to the technical field of model aircraft equipment, and in particular relates to a model aircraft steering engine with a modular structure. Background Art

[0002] A servo is an actuator that controls the aircraft's control surface or controls the rotation of the control surface through a position or angle servo drive. It is suitable for control systems that require angles to be constantly changed and maintained. The pitch, yaw, and roll movements of the aircraft's attitude change are all completed by the cooperation of servos. In the field of model aircraft equipment technology, the excellent operating performance of servos is an important factor in ensuring the stable operation of model aircraft equipment. At present, it has been widely used in aircraft models, submarine models, and remote-controlled robots. It has gradually become a new direction for the development of servos with its modularity, easy disassembly and replacement, light weight, stable performance, and convenient maintenance.

[0003] The common aircraft model servos on the market have complex structure processing and lack modular design. They need to be disassembled as a whole during testing and maintenance, and replaced as a whole when they fail. Moreover, local modules cannot be replaced according to actual needs to change the working requirements of the whole machine. The overall structure is complex and difficult to disassemble, which is inconvenient to use. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a modular, simple in structure, high in operating stability, easy to disassemble and replace, lightweight, and fast in heat dissipation model aircraft servo, which can be assembled in a split manner and can effectively solve the problems in the background technology.

[0005] In order to solve the above problems, the technical solution adopted by the utility model is:

[0006] A modular aircraft model servo comprises a transmission module, a drive module, a control module, a potentiometer, a steering wheel and accessories; the transmission module is composed of an upper shell and a middle mounting plate to form a transmission box, and a gear set is arranged in the transmission box; the drive module is composed of a drive motor, a motor limit block and a protective shell, and the drive motor drives the gear set to perform deceleration motion; the control module is composed of a control board installed on a bottom shell, and is connected with the potentiometer and the drive motor line; the potentiometer is installed in a potentiometer slot on the middle mounting plate, and is connected with an output gear shaft through a U-shaped slot; the steering wheel is connected with the output gear shaft through a spline; the three modules are assembled into a complete servo by screws.

[0007] Furthermore, an axial hole and an output shaft bearing hole are processed on the upper shell of the transmission module, and a copper sleeve is embedded in the axial hole; an input shaft hole, an output hollow shaft, and a potentiometer slot are provided on the middle mounting plate, and a copper sleeve is embedded in the corresponding shaft hole, which cooperates with the shaft to act as a bearing.

[0008] Furthermore, the gear set has a total of five levels of transmission, and the corresponding shafts and gears are clearance-fitted to facilitate rotational transmission. The corresponding shafts are installed in the copper sleeves corresponding to the housing and the middle mounting plate with interference fit to be assembled into a complete transmission module.

[0009] Furthermore, a gear is processed at one end of the gear shaft five and an external spline is processed at the other end. A bearing hole two is processed inside the gear end. The bearing hole two and the bearing two are interference fit and are installed together on the output hollow shaft. The external spline end passes through the bearing hole one of the gear shaft six on the upper shell and is installed in cooperation with the bearing one installed on the bearing hole one of the output shaft to ensure the overall rotation stability of the output shaft system; the external spline on the gear shaft six is ​​connected to the steering wheel and is axially fixed by screws.

[0010] Furthermore, grooves are machined inside the left and right protective shells of the driving module, and the driving motor is tightened and fixed by the motor limit block with screws to limit the rotation of the driving motor. The fixed motor group is installed in the grooves of the left and right protective shells, and at the same time, the convex stop at the front end of the driving motor is installed in the concave stop on the middle mounting plate, which together limit the up, down, left and right directions of the driving motor.

[0011] Furthermore, the control board of the control module is fixed to the bottom shell by screws, the internal interface of the control board is connected to the potentiometer and the drive motor line, the external interface line of the control board includes a power line, a ground line and a control line, and the external interface line passes through the bottom shell outlet for connection to external devices, which is convenient for wiring.

[0012] Furthermore, the rotating shaft of the potentiometer is connected to the gear shaft six through a U-shaped groove, and the potentiometer is installed as a whole in the potentiometer slot of the middle mounting plate. At the same time, the potentiometer fixing block fixed on the middle mounting plate by hot melt adhesive is axially limited by screws. This structure can meet the requirements of easy disassembly and assembly of the potentiometer.

[0013] Furthermore, the transmission module, drive module and control module are all designed with modular structures and can be assembled in a split manner. During assembly, rubber sealing rings are installed at the joints of each module. After being squeezed, the rubber sealing rings achieve effective sealing and waterproofing effects. The three modules are connected by screws to assemble into a complete steering gear.

[0014] The beneficial effects of the utility model are as follows: the utility model has a modular structure of a model aircraft servo, which optimizes the overall structure of the servo, and designs the main structure of the servo into three modules: a transmission module, a drive module, and a control module. The modular structure design has high operating stability and can be assembled in a separable manner. Not only can the servo be quickly and independently disassembled and assembled during testing and maintenance, but it can also be quickly replaced in case of a fault, and local modules can be replaced according to actual needs to change the working performance requirements of the entire machine, which is inconvenient to use. At the same time, the modular design also realizes the lightweight design requirements. Rubber sealing rings are installed between the modules to achieve effective sealing and waterproofing effects, thereby improving the sealing performance of the servo. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic diagram of the general assembly structure of a modular structure aircraft model steering gear.

[0016] Figure 2 The utility model is a schematic diagram of a transmission module structure of a modular structure aircraft model steering gear.

[0017] Figure 3 The utility model is a schematic diagram of a drive module structure of a modular structure aircraft model steering gear.

[0018] Figure 4 The utility model is a schematic diagram of a control module structure of a modular structure aircraft model steering gear.

[0019] Figure 5 The utility model is a schematic diagram of the assembly structure of the upper shell parts of a modular structure aircraft model steering gear.

[0020] Figure 6 The utility model is a schematic diagram of the assembly structure of the middle mounting plate parts of a modular structure aircraft model steering gear.

[0021] Figure 7 This is a schematic diagram of the gear set structure of a modular aircraft servo of the utility model.

[0022] Figure 8 The utility model is a schematic diagram of the installation and assembly structure of a potentiometer of a modular aircraft servo.

[0023] Fig. 9 The utility model is a control and drive schematic diagram of a modular structure aircraft model steering gear.

[0024] In the figure: 1. Transmission module; 2. Drive module; 3. Control module; 4. Potentiometer; 5. Steering wheel; 6. Rubber pad; 11. Upper shell; 12. Middle mounting plate; 13. Gear set; 14. Bearing 1; 15. Bearing 2; 21. Drive motor; 22. Motor limit block 1; 23. Motor limit block 2; 24. Left protective shell; 25. Right protective shell; 31. Bottom shell; 32. Control board; 41. Potentiometer fixing block 1; 42. Potentiometer fixing block 2 110. Output shaft bearing hole 1; 111. Copper sleeve 1; 112. Copper sleeve 2; 113. Copper sleeve 3; 121. Input shaft hole; 122. Output Hollow shaft; 123, potentiometer slot; 124, concave stopper; 125, copper sleeve four; 126, copper sleeve five; 127, copper sleeve six; 128, copper sleeve seven; 131, shaft one; 132, shaft two; 133, shaft three; 134, shaft four; 135, gear one; 136, gear two; 137, gear three; 138, gear four; 139, gear five; 140, gear shaft six; 1401, gear; 1402, external spline; 1403, bearing hole two; 241, groove one; 251, groove two; 321, power line; 322, ground line; 323, control line; 311, bottom shell outlet.

[0025] A preferred embodiment of a modular aircraft model servo of the utility model is described in detail below in conjunction with specific drawings, so that the advantages and features of the utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the utility model. Example

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a modular structure of the aircraft model servo is characterized in that it includes a transmission module 1, a drive module 2, a control module 3, a potentiometer 4 and a steering wheel 5; the transmission module includes an upper shell 11, a middle mounting plate 12, a gear set 13, a bearing 14 and a bearing 2 15; the drive module includes a drive motor 21, a motor limit block 1 22, a motor limit block 23, a left protective shell 24 and a right protective shell 25; the control module includes a bottom shell 31 and a control board 32.

[0027] like Figure 5 and Figure 6As shown, as a preferred embodiment, an axial hole and an output shaft bearing hole 110 are processed on the upper shell 11 of the transmission module 1, and a copper sleeve 111, a copper sleeve 2 112, and a copper sleeve 3 113 are inlaid in the axial hole; the middle mounting plate 12 is provided with an input shaft hole 121, an output hollow shaft 122, a potentiometer slot 123, and a concave stop 124, and a copper sleeve 4 125, a copper sleeve 5 126, a copper sleeve 6 127, and a copper sleeve 7 128 are inlaid in the corresponding axial holes, and the copper sleeves cooperate with the shaft to act as bearings.

[0028] like Figure 5 , Figure 6 and Figure 7 As shown, as a preferred embodiment, the gear set 13 has a total of five-stage transmission, including shaft one 131, shaft two 132, shaft three 133, shaft four 134, gear one 135, gear two 136, gear three 137, gear four 138, gear five 139, and gear shaft six 140; wherein gear two 136, gear three 137, gear four 138, gear five 139 are all clearance fits with the corresponding shafts, and the corresponding shafts are installed in the copper sleeves corresponding to the housing 11 and the middle mounting plate 12 with interference fit.

[0029] like Figure 1 and Figure 7 As shown, as a preferred solution, the gear shaft 6 140 is processed with a gear 1401 at one end and an external spline 1402 at the other end. The gear 1401 end is processed with a bearing hole 1403 inside. The bearing hole 1403 and the bearing 15 are interference fit and are installed together on the output hollow shaft 122. The external spline 1402 end passes through the output shaft bearing hole 110 and is installed in cooperation with the bearing 14 installed on the output shaft bearing hole 110. The external spline 1402 is connected with the steering wheel 5 and is axially fixed by screws.

[0030] like Figure 3 As shown, as a preferred solution, the left protective shell 24 and the right protective shell 25 of the driving module 2 are respectively processed with groove 1 241 and groove 251, and the motor limit block 1 22 and the motor limit block 23 are tightened and fixed to the driving motor 21 by screws to limit the rotation of the outer shell of the driving motor 21. The fixed motor group is installed in the groove 1 241 and groove 251 of the left protective shell 24 and the right protective shell 25, and the convex stop at the front end of the driving motor 21 is installed in the concave stop 124 on the middle mounting plate, which jointly limit the upper, lower, left and right directions of the driving motor 21.

[0031] like Figure 4 and Fig. 9As shown, as a preferred solution, the control board 32 of the control module 3 is fixed to the bottom shell 31 by screws, the internal interface of the control board 32 is connected to the potentiometer 4 and the drive motor 21, the external interface line of the control board 32 includes a power line 321, a ground line 322 and a control line 323, and the external interface line passes through the bottom shell outlet 311 for connection to external devices.

[0032] like Figure 8 As shown, as a preferred embodiment, the rotating shaft of the potentiometer 4 is connected to the gear shaft 6 140 through a U-shaped groove, and the potentiometer 4 is installed as a whole in the potentiometer slot 123 of the middle mounting plate 12. At the same time, the potentiometer fixing block 1 41 and the potentiometer fixing block 2 42 fixedly mounted on the middle mounting plate 12 by hot melt adhesive are axially limited by screws.

[0033] like Fig. 9 As shown, as a preferred solution, the drive motor 21 equipped with gear 135 passes through the input shaft hole 121 on the middle mounting plate 12 and cooperates with gear 2 136. The drive motor 21 is powered by an external power supply and controlled by the control module 3 to drive the gear set 13 to perform reduction transmission.

[0034] like Figure 1 As shown, as a preferred solution, the transmission module 1, the drive module 2, and the control module 3 are all of modular structure design and can be assembled in a split type. During assembly, rubber sealing pads 6 are installed at the joints of each module. After being squeezed, the rubber sealing pads 6 can achieve an effective sealing and waterproof effect. The three modules are connected by screws to assemble into a complete servo.

[0035] The beneficial effects of the utility model are as follows: the utility model has a modular structure of a model aircraft servo, which optimizes the overall structure of the servo, and designs the main structure of the servo into three modules: a transmission module, a drive module, and a control module. The modular structure design has high operating stability and can be assembled in a separable manner. Not only can the servo be quickly and independently disassembled and assembled during testing and maintenance, but it can also be quickly replaced in case of a fault, and local modules can be replaced according to actual needs to change the working performance requirements of the entire machine, thereby realizing modular changes of multiple transmission ratios and multiple control methods at any time. It is relatively inconvenient to use, and at the same time, the modular design also realizes the lightweight design requirements. Each module is equipped with a rubber sealing ring to achieve an effective sealing and waterproof effect, thereby improving the sealing performance of the servo.

[0036] The above-mentioned embodiments are only similar explanations of the main features, basic principles and advantages of the present invention and some embodiments of its application, and are not intended to limit the patent scope of the present invention. It should be pointed out that for technicians in this industry, without departing from the spirit and scope of the present invention, the present invention will also have various changes and improvements according to actual conditions, and these changes and improvements all fall within the scope of the present invention to be protected. All equivalent structures or equivalent process changes made using the contents of the present invention specification and drawings, or directly or indirectly used in other related technical fields, are similarly included in the patent protection scope of the present invention.

Claims

1. A modular structure aircraft model servo, characterized by: The invention comprises a transmission module (1), a drive module (2), a control module (3), a potentiometer (4), a steering wheel (5) and a rubber sealing pad (6); the transmission module comprises an upper housing (11), a middle mounting plate (12), a gear set (13), a first bearing (14) and a second bearing (15); the drive module comprises a drive motor (21), a first motor limit block (22), a second motor limit block (23), a left protective shell (24) and a right protective shell (25); and the control module comprises a bottom shell (31) and a control panel (32).

2. The modular structure aircraft model steering engine according to claim 1, characterized in that: The upper shell (11) of the transmission module (1) is machined with an axial hole and an output shaft bearing hole 1 (110), and the axial hole is inlaid with a copper sleeve 1 (111), a copper sleeve 2 (112), and a copper sleeve 3 (113); the middle mounting plate (12) is provided with an input shaft hole (121), an output hollow shaft (122), a potentiometer slot (123), and a concave stopper (124), and the corresponding shaft holes are inlaid with a copper sleeve 4 (125), a copper sleeve 5 (126), a copper sleeve 6 (127), and a copper sleeve 7 (128).

3. A modular aircraft model servo according to claim 1 or claim 2, characterized in that: The gear set (13) has a total of five transmission stages, including shaft one (131), shaft two (132), shaft three (133), shaft four (134), gear one (135), gear two (136), gear three (137), gear four (138), gear five (139); and gear shaft six (140); wherein gear two (136), gear three (137), gear four (138) and corresponding shafts are clearance-fitted, and the corresponding shafts are installed in corresponding copper sleeves of the housing (11) and the middle mounting plate (12) by interference fit.

4. The modular structure aircraft model steering engine according to claim 3, characterized in that: The gear shaft (140) is processed with a gear (1401) at one end and an external spline (1402) at the other end; a bearing hole (1403) is processed inside the end of the gear (1401); the bearing hole (1403) and the bearing (15) are interference fit and are installed together on the output hollow shaft (122); the external spline (1402) passes through the output shaft bearing hole (110) and is installed in cooperation with the bearing (14) installed on the output shaft bearing hole (110); the external spline (1402) is connected to the steering wheel (5) and is axially fixed by screws.

5. The modular structure aircraft model steering engine according to claim 1 or claim 2, characterized in that: The left protective shell (24) and the right protective shell (25) of the drive module (2) are respectively processed with a groove 1 (241) and a groove 2 (251) inside. The motor limit block 1 (22) and the motor limit block 2 (23) are used to tighten and fix the drive motor (21) by screws to limit the rotation of the outer shell of the drive motor (21). The fixed motor group is installed in the groove 1 (241) and the groove 2 (251) of the left protective shell (24) and the right protective shell (25). At the same time, the convex stopper at the front end of the drive motor (21) is installed in the concave stopper (124) on the middle mounting plate, together limiting the upper, lower, left and right directions of the drive motor (21).

6. The modular structure aircraft model steering engine according to claim 1, characterized in that: The control board (32) of the control module (3) is fixed to the bottom shell (31) by screws; the internal interface of the control board (32) is connected to the potentiometer (4) and the drive motor (21); the external interface line of the control board (32) includes a power line (321), a ground line (322) and a control line (323); the external interface line passes through the bottom shell outlet (311) for connection to external equipment.

7. The modular structure of the model aircraft servo according to claim 2, characterized in that: A driving motor (21) equipped with a gear 1 (135) passes through an input shaft hole (121) on the middle mounting plate (12) and cooperates with a gear 2 (136). The driving motor (21) is powered by an external power supply and controlled by a control module (3) to drive the gear set (13) to perform a reduction transmission.

8. The modular structure aircraft model steering engine according to claim 1 or claim 2, characterized in that: The rotating shaft of the potentiometer (4) is connected to the gear shaft six (140) through a U-shaped groove, and the potentiometer (4) is installed as a whole in the potentiometer slot (123) of the middle mounting plate (12). At the same time, the potentiometer fixing block 1 (41) and the potentiometer fixing block 2 (42) fixedly mounted on the middle mounting plate (12) by hot melt adhesive are axially limited by screws.

9. The modular structure aircraft model steering engine according to claim 1 or claim 6, characterized in that: The transmission module (1), the drive module (2), and the control module (3) are all designed as modular structures and can be assembled in a split manner. During assembly, rubber sealing pads (6) are installed at the joints of each module. After being squeezed, the rubber sealing pads (6) achieve an effective sealing and waterproofing effect. The three modules are connected by screws to assemble into a complete steering gear.

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