CN219263032U - Clutch control circuit of unmanned helicopter - Google Patents
Clutch control circuit of unmanned helicopter Download PDFInfo
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- CN219263032U CN219263032U CN202223336230.4U CN202223336230U CN219263032U CN 219263032 U CN219263032 U CN 219263032U CN 202223336230 U CN202223336230 U CN 202223336230U CN 219263032 U CN219263032 U CN 219263032U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
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Abstract
The utility model belongs to the technical field of clutch control mechanisms of helicopters, and discloses a clutch control circuit of an unmanned helicopter, which comprises: the control switch is used for controlling the rotation direction of the motor and controlling the clutch to move upwards or downwards according to the rotation direction of the motor; the return limit switch is a position switch, and the over-travel limit switch is a protection switch and is used for protecting the clutch; the upright springs are divided into upright springs Sx and Dx and are used for jointly controlling the upward movement of the clutch so as to control the upward and downward movement of the clutch mechanism; the rectifier bridge and the indicator lamp are used for displaying the state of the clutch, when the clutch moves, the indicator lamp is on, and when the clutch moves to stop, the indicator lamp is off. The clutch motion control can be realized, the circuit is simple and reliable, and the clutch motion control device is suitable for the clutch mechanism control of a helicopter.
Description
Technical Field
The utility model belongs to the technical field of clutch control mechanisms of helicopters, and particularly relates to a clutch control circuit of an unmanned helicopter.
Background
The helicopter clutch is an intermediate mechanism for transmitting the power of an engine to a propeller and is a part of a helicopter transmission system, so that the stable operation of the clutch is an important mechanism for guaranteeing the reliable flight of a helicopter. Before the engine of the helicopter starts, a clutch is used for separating the propeller from the rotating wheel of the engine so as to reduce the load of the engine during starting; after the engine runs stably, the load of the propeller is slowly connected to the engine by using the clutch, and finally the engine drives the propeller to rotate so as to drive the helicopter to take off, thereby realizing the functions of no-load starting of the engine on the propeller and driving the propeller to rotate and fly. The clutch of the helicopter is divided into a belt transmission clutch, a centrifugal clutch, a one-way clutch and the like, and the control circuit of the clutch mainly has a simple and reliable control function for realizing the up-and-down movement of the clutch.
Through the above analysis, the problems and defects existing in the prior art are as follows: the centrifugal clutch mainly controls the box block to move through centrifugal force, drives the drum wheel to rotate and then drives the rotor to rotate, and as the engagement of the clutch depends on the centrifugal force of the box block, the clutch cannot transmit load larger than rated torque and is only controlled by the rotation speed of the engine; the one-way clutch only allows one-way power transmission, and the clutch needs to be arranged between the engine and the main rotor transmission, so that the arrangement position is high in requirement. The belt drive clutch has no special high requirement on the installation position of the clutch, the operation of the clutch is controlled by an external circuit, and the operation stability is better, for example, the U.S. R22 aircraft adopts the belt drive clutch.
Disclosure of Invention
The utility model aims to solve the lifting problem of a helicopter belt transmission clutch, realize a clutch control function by using a simple and reliable circuit and display the state of the clutch by using an indicator lamp. The embodiment of the utility model discloses a clutch control circuit of an unmanned helicopter, which comprises the following technical scheme:
the clutch control circuit of the unmanned helicopter comprises:
the control switch is used for controlling the rotation direction of the motor and controlling the clutch to move upwards or downwards according to the rotation direction of the motor;
the return limit switch is a position switch, is connected with the control switch, is arranged on a structural support of the helicopter clutch, and is used for disconnecting a power supply loop of the motor after the clutch reaches a lower limit position, stopping the rotation of the motor and stopping the clutch at the current lower limit position;
the over-travel limit switch is connected with the motor and is a protection switch and used for protecting the mechanism from being damaged due to the fact that the clutch continues to move upwards after reaching the upper limit, and when the clutch reaches the upper limit position, the over-travel limit switch cuts off a power supply loop of the motor, the motor stops rotating, and the clutch is fixed at the highest position;
the upright post spring Sx and the upright post spring Dx are respectively connected with the control switch and the overtravel limit switch and are simultaneously closed or opened; upward movement of the clutch when simultaneously closed, and stopping upward movement of the clutch when simultaneously open;
the rectifier bridge and the indicator lamp are used for displaying the state of the clutch, the indicator lamp is turned on when the clutch moves, and the indicator lamp is turned off when the clutch stops moving;
the return limit switch is arranged at the lower limit position of the clutch mechanism, the over-travel limit switch is positioned at the upper limit position of the clutch mechanism, the indicator light and the control switch are both arranged in the control cabin, and all the devices are connected by electric signals to form the whole clutch control circuit.
In one embodiment, the control switch is a switch with 4 sets of contacts, the positive electrode of the 12V power supply is connected with the 5 th terminal of the control switch, the 4 th terminal of the control switch is connected with the 2 nd terminal of the upright spring Sx, the 6 th terminal of the control switch is connected with the 1 st terminal of the return limit switch, the 2 nd terminal of the control switch is connected with the negative electrode of the 12V power supply, the 1 st terminal of the control switch is connected with the 2 nd terminal of the return limit switch and the 2 nd terminal of the motor, and the 3 rd terminal of the control switch is connected with the 2 nd terminal of the upright spring Dx and the 2 nd terminal of the over-travel limit switch; the 1 st terminal of the upright spring Sx is connected with the 1 st terminal of the upright spring Dx; the 1 st terminal of the motor is connected with the 1 st terminal of the over-travel limit switch; and the alternating current end of the rectifier bridge is connected with the 1 st terminal of the control switch.
In one embodiment, the 1 pin of the limiter in the return limit switch is a fixed end, the 2 pin of the limiter is a normally closed contact, and the 3 pin of the limiter is a normally open contact.
In one embodiment, one end of the alternating current end of the rectifier bridge is connected with the 3 rd terminal of the control switch, one end of the indicator lamp is connected with the positive end of the rectifier bridge, and the other end of the indicator lamp is connected with the negative end of the rectifier bridge.
In one embodiment, further comprising: the power rotating device is provided with a gear motor and a steering engine driver, provides power for three-direction rotation of the tool, controls the rotation direction of the motor through positive and negative stages of a power supply, and simultaneously protects the power supply from power failure when the motor is blocked.
By combining all the technical schemes, the utility model has the advantages and positive effects that:
first, aiming at the technical problems existing in the prior art and the difficulty of solving the problems, the technical problems solved by the technical scheme of the utility model to be protected, results and data in the research and development process and the like are closely combined, the technical problems solved by the technical scheme of the utility model are analyzed in detail and deeply, and some technical effects with creativity brought after the problems are solved are specifically described as follows: the clutch control circuit of the unmanned helicopter can realize the motion control of the clutch, is simple and reliable, and is suitable for the clutch mechanism control of the helicopter.
Secondly, the technical proposal is regarded as a whole or from the perspective of products, and the technical proposal to be protected has the technical effects and advantages as follows: the clutch has upper limit position and lower limit protection, can realize the ascending or descending motion of clutch through a control switch, and the clutch reaches the assigned position and can stop in this position voluntarily, has the clutch pilot lamp, conveniently observes the clutch state.
Thirdly, as inventive supplementary evidence of the claims of the present utility model, it is also reflected in the following important aspects: the clutch control circuit is adopted by the unmanned helicopters of a plurality of models, so that the development cost of the clutch of the company is reduced, and a new idea is provided for the unmanned helicopter company in the same industry to control the clutch. The utility model has reliable and stable performance, is less in domestic application, and fills the solution of domestic helicopter belt transmission clutch control. The clutch control circuit is realized by pure hardware, the circuit connection is simple and reliable, and the clutch control circuit has multiple protections, thereby meeting the reliability requirement of the unmanned aerial vehicle.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure;
FIG. 1 is a schematic diagram of a control circuit according to an embodiment of the present utility model;
fig. 2 is a circuit diagram of a new clutch control provided by an embodiment of the present utility model.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the utility model, which is therefore not limited to the specific embodiments disclosed below.
A clutch control circuit for an unmanned helicopter, comprising: the device comprises a control switch, a return limit switch, an over-travel limit switch, a motor, an upright spring Sx, an upright spring Dx, a rectifier bridge and an indicator lamp;
the control switch is a switch with 4 groups of contacts and mainly controls the rotation direction of the motor, and controls the clutch to move upwards or downwards according to the rotation direction of the motor; the positive electrode of the 12V power supply is connected with the 5 th terminal of the control switch, the 4 th terminal of the control switch is connected with the 2 nd terminal of the upright spring Sx, the 6 th terminal of the control switch is connected with the 1 st terminal of the return limit switch, the 2 nd terminal of the control switch is connected with the negative electrode of the 12V power supply, the 1 st terminal of the control switch is connected with the 2 nd terminal of the return limit switch and the 2 nd terminal of the motor, and the 3 rd terminal of the control switch is connected with the 2 nd terminal of the upright spring Dx and the 2 nd terminal of the over-travel limit switch; the 1 st terminal of the upright spring Sx is connected with the 1 st terminal of the upright spring Dx; the 1 st terminal of the motor is connected with the 1 st terminal of the over-travel limit switch; one end of the rectifier bridge is connected with the 1 st terminal of the control switch, the other end of the rectifier bridge is connected with the 3 rd terminal of the control switch, one end of the indicator lamp is connected with the positive end of the rectifier bridge, and the other end of the indicator lamp is connected with the negative end of the rectifier bridge.
When the control switch is closed to the suction position, the 5 th terminal of the control switch is connected with the 4 th terminal, the 2 nd terminal of the control switch is connected with the 1 st terminal, current returns to the power negative electrode through the 4 th terminal, the 5 th terminal, the upright spring Sx, the upright spring Dx, the over-travel limit switch, the motor and the 1 st terminal and 2 nd terminal of the control switch, the motor drives the clutch to move upwards, and meanwhile, the indicator lamp is on, when the clutch rises to the top position, the 1 st terminal and the 2 nd terminal of the upright spring Sx and the upright spring Dx are disconnected, the 3 rd terminal is connected, the circuit is broken, the motor stops working, the clutch stops to the top position, and the indicator lamp is extinguished.
When the control switch is closed to a release position, the 5 th terminal of the control switch is connected with the 6 th terminal, the 2 nd terminal of the control switch is connected with the 3 rd terminal, current passes through the 5 th terminal and the 6 th terminal of the control switch, the return limit switch, the motor, the overtravel limit switch and the 3 rd and 2 nd terminals of the control switch to return to the power negative electrode, the motor drives the clutch to move downwards, meanwhile, the indicator lamp is lightened, when the clutch returns to the bottom end position, the 1 st terminal and the 2 nd terminal of the return limit switch are disconnected, the 3 rd terminal is connected, the circuit is broken, the motor stops working, the clutch stops to the bottom end position, and the indicator lamp is extinguished.
The return limit switch is a position switch, the 1 pin of the limiter is a fixed end, the 2 pin of the limiter is a normally closed contact, and the 3 pin of the limiter is a normally open contact;
the structure and principle of the over-travel limit switch are the same as those of the return limit switch;
the upright springs are divided into upright springs Sx and upright springs Dx to jointly control upward movement of the clutch, the motor is a direct current motor, and the rotation directions of the motor are different according to different directions of power supplies, so that the upward and downward movement of the clutch mechanism is controlled;
the rectifier bridge and the indicator lamp are used for displaying the state of the clutch, when the clutch moves, the indicator lamp is on, and when the clutch moves to stop, the indicator lamp is off.
The rotation direction of the motor is determined by two control circuits, when current passes through a path of a control switch, a return limit switch, a motor and an over-travel limit switch from the positive electrode of the power supply to the negative electrode of the power supply, the motor drives the clutch to move downwards, when current passes through the control switch, the upright spring Sx, the upright spring Dx, the over-travel limit switch and the motor to the negative electrode of the power supply from the positive electrode of the power supply, the motor drives the clutch to move upwards, when the clutch moves to the top end of the machine, the upright spring is disconnected, the circuit is disconnected, the clutch is stopped at the highest position, and when the clutch moves to the bottom end of the machine, the return limit switch is disconnected, the circuit is disconnected, and the clutch is stopped at the lowest position.
The working process is as follows: the control switch is a switch with 4 groups of contacts, when the switch is moved, the 4 groups of contacts act simultaneously, the 5 th contact and the 2 nd contact of the switch are connected with a 12V direct current power supply, when the switch is closed to a disgage position, current enters a rear-stage circuit through the 5 th contact and the 6 th contact of the switch, the current returns to a power supply negative electrode through the 3 rd contact and the 2 nd contact, the motor moves downwards, when the switch is closed to the Engage position, the current enters the rear-stage circuit through the 5 th contact and the 4 th contact, the current returns to the power supply negative electrode through the 1 st contact and the 2 nd contact, and the motor moves upwards;
when the clutch moves downwards, current passes through the switch, when the clutch is at the lowest position, the 1 st contact of the return limit switch is connected with the 3 rd contact, the switch is in an open state, namely the clutch can not move downwards any more, when the clutch leaves the lowest position, the 1 st contact of the return limit switch is connected with the 2 nd contact, and when the clutch is only controlled to be closed to the disable position, the clutch moves downwards;
when the vertical column spring is divided into the vertical column spring Sx and the vertical column spring Dx to jointly control the upward movement of the clutch, current passes through the switch, when the clutch is at the highest position, the 1 st contact of the vertical column spring is connected with the 3 rd contact, at the moment, the switch is in an open state, namely, the clutch cannot continue to move upward, when the clutch leaves the highest position, the 1 st contact of the vertical column spring is connected with the 2 nd contact, at the moment, as long as the control switch is closed to the suction position, the clutch can move upward.
The overtravel limit switch is a protection switch, when the upright post spring fails and the clutch moves upwards beyond the highest position and is not stopped, the 1 st contact of the overtravel limit switch is connected with the 3 rd contact when the clutch reaches the overtravel protection position, current is blocked from entering the motor, the clutch stops moving upwards continuously, and the function of protecting the clutch is achieved; when the over-travel limit switch is protected, the clutch cannot move no matter the control switch is closed to that position, and the clutch needs to be mechanically reset before the control can be continued.
The motor is a direct current motor, the rotation direction of the motor is determined according to the current direction flowing through the motor, current enters the motor through a red line and flows out of the motor through a black line, the motor rotates positively, otherwise, current enters the motor through the black line and flows out of the motor through the red line, and the motor rotates reversely; the rectifier bridge is used for supplying the voltage in different directions to the indicator lamp in the same direction, so that the indicator lamp is lightened as long as the circuit is provided with current, and the indicator lamp indicates whether the clutch moves or not.
The gear motor and the steering engine driver are power rotating devices of the tool, power is provided for three-direction rotation of the tool, the rotating direction of the motor is controlled through the positive and negative stages of the power supply, and meanwhile, when the motor is blocked, the power supply is powered off for protection.
According to the utility model, a double-way control circuit design is adopted, and when the clutch moves upwards, current returns to the control switch through the control switch, the upright post spring, the over-travel limit switch and the motor; when the clutch moves downwards, the current passes through the control switch, the return limit switch, the motor, the over-travel limit switch and the return control switch; specific implementations of the utility model are set forth below.
As shown in fig. 1, the main elements of the system include a control switch, a return limit switch, an over-travel limit switch, a column spring, a motor, and the like. One end of the control switch is connected with a 12V power supply, one end of the control switch is connected with a return limit switch, the other end of the control switch is connected with an upright spring Sx, the other end of the return limit switch is connected with a motor, the other end of the upright spring Sx is connected with an upright spring Dx, the other end of the upright spring Dx is connected with one end of an over-travel limit switch, and the other end of the over-travel limit switch is connected with the motor; the other end of the motor is connected with the negative electrode of the power supply; the motor is connected in series in the circuit and the direction of rotation of the motor is determined based on the direction of current through the motor, thereby determining the direction of movement of the clutch.
As shown in a control circuit diagram of the clutch shown in fig. 2, the control switch is a switch with 4 sets of contacts, the positive electrode of the 12V power supply is connected with the 5 th terminal of the control switch, the 4 th terminal of the control switch is connected with the 2 nd terminal of the upright spring Sx, the 6 th terminal of the control switch is connected with the 1 st terminal of the return limit switch, the 2 nd terminal of the control switch is connected with the negative electrode of the 12V power supply, the 1 st terminal of the control switch is connected with the 2 nd terminal of the return limit switch and the 2 nd terminal of the motor, and the 3 rd terminal of the control switch is connected with the 2 nd terminal of the upright spring Dx and the 2 nd terminal of the over-travel limit switch; the 1 st terminal of the upright spring Sx is connected with the 1 st terminal of the upright spring Dx; the 1 st terminal of the motor is connected with the 1 st terminal of the over-travel limit switch; one end of the rectifier bridge alternating current is connected with the 1 st terminal of the control switch, the other end of the rectifier bridge alternating current is connected with the 3 rd terminal of the control switch, one end of the indicator lamp is connected with the positive end of the rectifier bridge, and the other end of the indicator lamp is connected with the negative end of the rectifier bridge.
When the control switch is closed to a release position, current passes through a second group of contacts of the control switch, the return limit switch, the motor, the over-travel limit switch and a first group of contacts of the control switch, reverse rotation of the motor is realized, the clutch is driven to move downwards, the clutch moves to the lowest position, the return limit switch is opened, and the clutch is stopped at the lowest position; when the control switch is closed to the suction position, current passes through the second group of contacts of the control switch, the upright spring, the overtravel limit switch, the motor and the first group of contacts of the control switch, so that the forward rotation of the motor is realized, the clutch is driven to move upwards, the clutch moves to the highest position, the upright spring is opened, and the clutch is stopped at the highest position;
the specific embodiment of the utility model, the control principle of the circuit, the running process of the helicopter clutch and the like have been described above, the circuit can realize clutch control by only operating one control switch, the circuit is simple and reliable, the control requirement of the helicopter clutch is met, the overtravel protection and the indication lamp display are provided, and the reliability of the system is improved.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, the specific names of the functional units and modules are only for distinguishing from each other, and are not used for limiting the protection scope of the present utility model. For specific working processes of the units and modules in the system, reference may be made to corresponding processes in the foregoing method embodiments.
While the utility model has been described with respect to what is presently considered to be the most practical and preferred embodiments, it is to be understood that the utility model is not limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.
Claims (7)
1. A clutch control circuit for an unmanned helicopter, the clutch control circuit comprising:
the control switch is used for controlling the rotation direction of the motor and controlling the clutch to move upwards or downwards according to the rotation direction of the motor;
the return limit switch is connected with the control switch and is arranged on a structural support of the helicopter clutch; when the clutch reaches the lower limit position, a power supply loop of the motor is disconnected;
the over-travel limit switch is connected with the motor and used for protecting the mechanism from being damaged due to the fact that the clutch continues to move upwards after reaching the upper limit, and the over-travel limit switch cuts off a motor power supply loop after the clutch reaches the upper limit;
the upright post spring Sx and the upright post spring Dx are respectively connected with the control switch and the overtravel limit switch and are simultaneously closed or opened; upward movement of the clutch when simultaneously closed, and stopping upward movement of the clutch when simultaneously open;
the rectifier bridge and the indicator lamp are used for displaying the state of the clutch, the indicator lamp is turned on when the clutch moves, and the indicator lamp is turned off when the clutch stops moving;
the return limit switch is arranged at the lower limit position of the clutch mechanism, the over-travel limit switch is positioned at the upper limit position of the clutch mechanism, the indicator light and the control switch are both arranged in the control cabin, and all the devices are connected by electric signals to form the whole clutch control circuit.
2. The clutch control circuit of the unmanned helicopter according to claim 1, wherein the control switch is a switch of 4 sets of contacts, the 4 th terminal of the control switch is connected with the 2 nd terminal of the upright spring Sx, and the 5 th terminal of the control switch is connected with the positive electrode of the 12V power supply;
the 6 th terminal of the control switch is connected with the 1 st terminal of the return limit switch, the 2 nd terminal of the control switch is connected with the negative electrode of the 12V power supply, the 1 st terminal of the control switch is connected with the 2 nd terminal of the return limit switch and the 2 nd terminal of the motor, and the 3 rd terminal of the control switch is connected with the 2 nd terminal of the upright spring Dx and the 2 nd terminal of the over-travel limit switch;
the 1 st terminal of upright spring Sx is connected with the 1 st terminal of upright spring Dx, the 1 st terminal of motor is connected with the 1 st terminal of overtravel-limit switch, rectifier bridge AC one end is connected with the 1 st terminal of control switch.
3. The clutch control circuit of the unmanned helicopter according to claim 1, wherein pin 1 of the limiter in the return limit switch is a fixed end, pin 2 of the limiter is a normally closed contact, and pin 3 of the limiter is a normally open contact.
4. The clutch control circuit of the unmanned helicopter according to claim 2, wherein the other end of the rectifier bridge alternating current is connected with the 3 rd terminal of the control switch; one end of the indicator lamp is connected with the positive end of the rectifier bridge, and the other end of the indicator lamp is connected with the negative end of the rectifier bridge.
5. The unmanned helicopter clutch control circuit of claim 1, further comprising: the power rotating device is provided with a gear motor and a steering engine driver, provides power for three-direction rotation of the tool, controls the rotation direction of the motor through positive and negative stages of a power supply, and simultaneously protects the power supply from power failure when the motor is blocked.
6. The unmanned helicopter clutch control circuit of claim 1, wherein the return limit switch employs a position switch.
7. The clutch control circuit of an unmanned helicopter according to claim 1, wherein the over travel limit switch employs a protection switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223336230.4U CN219263032U (en) | 2022-12-12 | 2022-12-12 | Clutch control circuit of unmanned helicopter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223336230.4U CN219263032U (en) | 2022-12-12 | 2022-12-12 | Clutch control circuit of unmanned helicopter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219263032U true CN219263032U (en) | 2023-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223336230.4U Active CN219263032U (en) | 2022-12-12 | 2022-12-12 | Clutch control circuit of unmanned helicopter |
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| Country | Link |
|---|---|
| CN (1) | CN219263032U (en) |
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2022
- 2022-12-12 CN CN202223336230.4U patent/CN219263032U/en active Active
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