Electric clutch control circuit of electric capstan

Abstract

The utility model provides an electric clutch control circuit of an electric capstan, which comprises an electric clutch structure arranged on the electric capstan, the electric clutch structure comprises an electromagnetic valve (5), the electromagnetic valve (5) realizes electric clutch through stretching and retracting of a push rod (16), the electric clutch control circuit further comprises a remote controller, and the remote controller is provided with a clutch trigger key and a wireless signal transmitting circuit. The clutch trigger key is used for controlling the telescopic end of the electromagnetic valve (5) to stretch out to achieve separation in clutch. The wireless signal receiving circuit is in wireless signal connection with the wireless signal transmitting circuit, the wireless signal receiving circuit comprises a control unit and an execution unit, and the control unit, the execution unit and the electromagnetic valve (5) are electrically connected in sequence; when a user outputs a wireless signal through the remote controller, the control unit controls the electromagnetic valve (5) to stretch out and draw back through the execution unit according to the received wireless signal. The electric clutch control circuit is beneficial for improving the control convenience.

Description

Technical Field

[0001] The utility model relates to the technical field of winches, and particularly to an electric clutch control circuit for an electric winch. Background Art

[0002] Currently, there is an electric winch, which is generally used on transportation vehicles, such as off-road vehicles, ATVs, boats, etc. Of course, in addition to being applied to transportation vehicles, it can also be used in other places where there is a need, that is, the application scenarios are relatively wide and it is suitable for many occasions with traction function requirements. Therefore, this electric winch needs to have high reliability and stability.

[0003] For the current electric winch, in order to further improve the convenience of use, an electric winch with an electric clutch is proposed. In this way, an electric structure needs to be set up. In order to achieve more convenient control, an electric clutch control circuit for an electric winch needs to be designed. Summary of the Utility Model

[0004] The utility model provides an electric clutch control circuit for an electric winch, which is beneficial to improving the convenience of control.

[0005] To achieve the above object, the embodiments of the utility model adopt the following technical solutions:

[0006] An electric clutch control circuit for an electric winch includes an electric clutch structure arranged on the electric winch. The electric clutch structure includes a solenoid valve, and the solenoid valve realizes electric clutch through the expansion and contraction of a push rod. It also includes a remote control, which is provided with a key circuit and a wireless signal sending circuit. The key circuit includes a clutch trigger key, and the clutch trigger key is used to control the expansion of the telescopic end of the solenoid valve to realize separation in the clutch. The key circuit is electrically connected to the wireless signal sending circuit; it also includes a wireless signal receiving circuit, which is wirelessly signal-connected to the wireless signal sending circuit. The wireless signal receiving circuit includes a control unit and an execution unit, and the control unit, the execution unit, and the solenoid valve are electrically connected in sequence; when the user outputs a wireless signal through the remote control, the control unit controls the solenoid valve to expand and contract through the execution unit according to the received wireless signal.

[0007] In some embodiments, the solenoid valve includes a return spring, and the execution unit includes a first triode. The control end of the first triode is electrically connected to the control unit. The first triode is used to conduct to control the coil of the solenoid valve to be energized so that the telescopic end extends to realize separation in the clutch, and at the same time overcome the elastic force of the return spring. When the control unit controls the first triode to cut off the power supply of the solenoid valve, then under the action of the return spring, the telescopic end retracts to realize re-engagement in the clutch.

[0008] In some embodiments, the solenoid valve includes a return spring, and the actuating unit includes a first MOS transistor. The control terminal of the first MOS transistor is electrically connected to the control unit. The first MOS transistor is used to conduct to control the solenoid valve coil to be energized so that the telescopic end extends to achieve separation in the clutch, while overcoming the elastic force of the return spring. When the control unit controls the first MOS transistor to cut off the power supply of the solenoid valve, then under the action of the return spring, the telescopic end retracts to achieve re-engagement in the clutch.

[0009] In some embodiments, the control terminal of the first MOS transistor is also electrically connected to the pin of the control unit that can output a PWM control signal. The control unit can be switched to output the PWM control signal to the control terminal of the first MOS transistor to reduce the supply current to the solenoid valve coil.

[0010] In some embodiments, a second triode is further provided between the control terminal of the first MOS transistor and the pin of the control unit that can output a PWM control signal. The second triode serves to isolate and control the on / off of the first MOS transistor.

[0011] In some embodiments, the control terminal of the second triode is electrically connected to the pin of the control unit that can output a PWM control signal. The control terminal of the first MOS transistor is electrically connected to the input terminal of the second triode, and this input terminal is also electrically connected to the power supply.

[0012] In some embodiments, a delay circuit is further included. The delay circuit is electrically connected to the control unit. The delay circuit is used to provide a delay in the separated state. When the delay reaches the set value, the control unit controls the first MOS transistor to cut off the power supply of the solenoid valve, so that under the action of the return spring, the telescopic end retracts to achieve re-engagement in the clutch.

[0013] In some embodiments, a power button, a clutch button, and a reversing button are provided on the remote control. The button circuit and the wireless signal transmitting circuit are both provided in the remote control. The power button is used to turn on the power. The clutch button serves as a clutch trigger button. The reversing button is used to send positive and negative rotation signals of the electric winch.

[0014] In some embodiments, the solenoid valve includes a return spring, and the actuating unit includes a first MOS transistor. The control terminal of the first MOS transistor is electrically connected to the control unit. The first MOS transistor is used to conduct to control the solenoid valve coil to be energized so that the telescopic end extends to achieve separation in the clutch, while overcoming the elastic force of the return spring. When the power button turns off the power, the solenoid valve cuts off the power supply, then under the action of the return spring, the telescopic end retracts to achieve re-engagement in the clutch.

[0015] After adopting the above structure, compared with the prior art, the present utility model has the following advantages:

[0016] In the present disclosure, a clutch trigger button on a remote controller is used for a user to input a clutch instruction. Moreover, a wireless signal is sent to a wireless signal receiving circuit through a wireless signal transmitting circuit. The wireless signal receiving circuit not only has a part for receiving the wireless signal, but is also electrically connected to a signal processing circuit, that is, it further includes a control unit and an execution unit, and the control unit, the execution unit, and the solenoid valve are electrically connected in sequence. When the user outputs a wireless signal through the remote controller, the control unit controls the expansion and contraction of the solenoid valve through the execution unit according to the received wireless signal. Therefore, the user operation is very convenient, which is beneficial to improving the convenience of control. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a perspective schematic diagram of an electric winch with an electric clutch.

[0018] Figure 2 is Figure 1 a half-sectional view of the electric winch shown in the separated state.

[0019] Figure 3 is Figure 1 a half-sectional view of the electric winch shown in the engaged state.

[0020] Figure 4 FIG. is a block schematic diagram of an electric clutch control circuit of an electric winch.

[0021] Figure 5 FIG. is a circuit schematic diagram on the side of the remote controller.

[0022] Figure 6 FIG. is a circuit schematic diagram on the side of the wireless signal receiving circuit.

[0023] Figure 7 FIG. is a perspective schematic diagram of a remote controller.

[0024] DESCRIPTION OF REFERENCE NUMERALS: 1 - electric motor, 2 - bracket, 3 - winch drum, 4 - planetary gear reducer, 5 - solenoid valve, 6 - transmission shaft, 7 - input side planetary gear set, 8 - input sun gear, 9 - output side planetary gear set, 9.1 - output side planet carrier, 10 - spring, 11 - snap ring, 12 - connecting shaft, 13 - return spring, 14 - housing, 15 - input end, 16 - push rod, 17 - power button, 18 - clutch button, 19 - reversing button. DETAILED DESCRIPTION OF THE INVENTION

[0025] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The embodiments described below are only examples, and those skilled in the art can think of other obvious variants. The basic principles defined in the following description of the present utility model can be applied to other implementation schemes, variant schemes, improvement schemes, equivalent schemes, and other technical schemes that do not deviate from the spirit and scope of the present utility model.

[0026] Those skilled in the art should understand that in the disclosure of the present utility model, the orientation or positional relationship indicated by terms such as "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present utility model.

[0027] The present disclosure provides an electric clutch control circuit for an electric winch, which can control an electric winch with an electric clutch as shown in Figures 1 to 3 The electric winch includes a solenoid valve 5 provided on the electric winch, and the solenoid valve 5 realizes the electric clutch through the telescopic movement of a push rod 16.

[0028] Combined with Figures 1 to 3 , the electric winch includes an electric motor 1, a bracket 2, a winch drum 3, and a planetary gear reducer 4. The electric motor 1 and the planetary gear reducer 4 are respectively installed on both sides of the bracket 2. The winch drum 3 is rotatably connected between the brackets 2. The electric motor 1 and the planetary gear reducer 4 are connected via a transmission shaft 6. The transmission shaft 6 passes through the winch drum 3 to reach the input-side planetary gear set 7 of the planetary gear reducer 4 and is in transmission connection with the input sun gear 8 of the input-side planetary gear set 7. The input-side planetary gear set 7 is located on the side away from the bracket 2. The planetary gear set on the side of the planetary gear reducer 4 close to the bracket 2 is an output-side planetary gear set 9 for driving the winch drum 3 to rotate. There is a connecting shaft 12 between the input end 15 of the winch drum 3 and the output-side planet carrier 9.1 of the output-side planetary gear set 9. One end of the connecting shaft 12 is axially slidably sleeved with the input end 1510, and the other end of the connecting shaft 12 is axially slidably sleeved with the output end 11. The input end 1510 and the output-side planet carrier 9.1 are axially slidably sleeved through the connecting shaft 12 to achieve a separable transmission connection; the connecting shaft 12 is also sleeved on the transmission shaft 6, and the transmission shaft 6 and the connecting shaft 12 can rotate relative to each other. And when it is necessary to disengage, the transmission shaft 6 drives the connecting shaft 12 to axially slide.

[0029] As shown in Figure 2As shown, the transmission shaft 6 is pushed by the push rod 16, and then the transmission shaft 6 drives the connecting shaft 12 to axially slide. Then, the input end 15 of the connecting shaft 12 remains in a sleeved state, but the transmission sleeve hole of the connecting shaft 12 and the output-side planet carrier 9.1 is separated, thus achieving a separated state. When the push rod 16 retracts, due to the structural action of the spring 10 and snap ring 11 provided on the transmission shaft 6, the transmission shaft 6 moves back to its original position, thus obtaining Figure 3 the state shown in the figure, that is, the connecting shaft 12 is driven by the transmission shaft 6 to be sleeved with the transmission sleeve hole of the output-side planet carrier 9.1 again, thus restoring the power connection from the output-side planet carrier 9.1, the connecting shaft 12, and the input end 1510, that is, being in a combined state.

[0030] To facilitate installation, maintenance, and protection of the solenoid valve 5 and its related structures, the electric winch is provided with a detachable housing 14.

[0031] In addition to the solenoid valve 5, the electric clutch control circuit of the electric winch further includes a remote control. The remote control is provided with a key circuit and a wireless signal transmission circuit. The key circuit includes a clutch trigger key, and the clutch trigger key is used to control the telescopic end of the solenoid valve 5 to extend to achieve separation during clutch operation. The key circuit is electrically connected to the wireless signal transmission circuit; it further includes a wireless signal receiving circuit, and this wireless signal receiving circuit is wirelessly connected to the wireless signal transmission circuit. The wireless signal receiving circuit includes a control unit and an execution unit, and the control unit, the execution unit, and the solenoid valve 5 are electrically connected in sequence; when the user outputs a wireless signal through the remote control, the control unit controls the telescopic movement of the solenoid valve 5 through the execution unit according to the received wireless signal.

[0032] As Figure 5 shown is the circuit schematic diagram on the remote control side. It can be seen from the circuit schematic diagram that under the control of the chip MC30F130G-14P, the signal sent by the clutch trigger key K_LOCK is processed and then wirelessly sent through the chip BDD2119.

[0033] As Figure 6 shown is the circuit schematic diagram on the wireless signal receiving circuit side. The wireless signal receiving circuit wirelessly receives the wireless signal through another chip BDD2119 and digitizes it, and then transmits it to the main control chip MC2722-16P. Through this main control chip MC2722-16P, the first MOS transistor Q2 is further controlled. Therefore, the wireless signal receiving circuit side not only has a part for receiving wireless signals, but is also electrically connected to the signal processing circuit, that is, it further includes a control unit and an execution unit. Physically, the part for receiving wireless signals and the signal processing circuit can be made on one circuit board or on multiple circuit boards.

[0034] In some embodiments, as Figure 7As shown in the figure, the remote controller is provided with a power button 17, a clutch button 18 and a reversing button 19. The button circuit and the wireless signal transmitting circuit are both arranged in the remote controller. The power button 17 is used to turn on the power. The clutch button 18 serves as a clutch trigger button K_LOCK. The reversing button 19 is used to send forward and reverse signals of the electric winch.

[0035] In some embodiments, such as Figure 2 、 3 、5, and 6 show, the solenoid valve includes a return spring 13. The execution unit includes a first MOS transistor Q2. The control end of the first MOS transistor Q2 is electrically connected to the control unit. The first MOS transistor Q2 is used to conduct to control the coil of the solenoid valve 5 to be energized so that the telescopic end extends to realize separation in the clutch, and at the same time overcome the elastic force of the return spring 13. When the power button 17 turns off the power, the power supply to the solenoid valve 5 is cut off. Then, under the action of the return spring 13, the telescopic end retracts to realize re - engagement in the clutch.

[0036] Cutting off the power supply to the solenoid valve 5 can be, for example, the following structure. The power button 17 is Figure 5 the K_ONOFF shown. Pressing K_ONOFF can send a signal to the chip MC30F130G - 14P. Under the control of the chip MC30F130G - 14P, the signal sent by K_ONOFF is processed and wirelessly sent through the chip BDD2119. The wireless signal receiving circuit wirelessly receives the wireless signal through another chip BDD2119 and digitizes it, and then conveys it to the main control chip MC2722 - 16P. Through this main control chip MC2722 - 16P, it further controls the first MOS transistor Q2 to cut off the power supply to the solenoid valve 5.

[0037] Of course, it can also be other structures. For example, the following structure. The power button 17 is Figure 5 the K_ONOFF shown. Pressing K_ONOFF can send a signal to the chip MC30F130G - 14P. Under the control of the chip MC30F130G - 14P, the signal sent by K_ONOFF is processed and wirelessly sent through the chip BDD2119. The wireless signal receiving circuit wirelessly receives the wireless signal through another chip BDD2119 and digitizes it, and then conveys it to the main control chip MC2722 - 16P. Through this main control chip MC2722 - 16P, it further turns off Figure 6 the power supply VCC12 shown, thus cutting off the power supply to the solenoid valve 5.

[0038] In some embodiments, the control terminal of the first MOS transistor Q2 is also electrically connected to the pin of the control unit that can output a PWM control signal, that is, electrically connected to the 9th pin. The control unit can switch to output the PWM control signal to the control terminal of the first MOS transistor Q2 to reduce the supply current to the coil of the solenoid valve 5. In this way, the solenoid valve 5 can be maintained in operation with a smaller current, which is beneficial to reducing the heat generation of the coil and improving the working reliability of the solenoid valve 5.

[0039] In addition to the first MOS transistor Q2, a first triode can also be used to achieve the power supply purpose. Due to the large current, the first MOS transistor Q2 is preferably used as the execution unit of the present disclosure.

[0040] In some embodiments, a delay circuit is further included. The delay circuit is electrically connected to the control unit. The delay circuit is used to provide a delay in the separated state. When the delay reaches the set value, the control unit controls the first MOS transistor to cut off the power supply to the solenoid valve 5, so that the telescopic end retracts under the action of the return spring 13 to achieve re - engagement during clutch operation.

[0041] The delay circuit can be an independent circuit or can adopt the delay function circuit in the main control chip MC2722 - 16P. Preferably, the delay function circuit in the main control chip MC2722 - 16P is adopted, which has better integration and low cost.

[0042] For example, if the delay circuit is set to a time of 3 minutes, then in the separated state, after 3 minutes, the control unit controls the first MOS transistor to cut off the power supply to the solenoid valve 5, so that the telescopic end retracts under the action of the return spring 13 to achieve re - engagement during clutch operation. Of course, the specific timing of this delay circuit can also be other schemes. For example, in the case where the reversing key 19 does not send a signal to the main control chip MC2722 - 16P, the delay circuit performs continuous timing. Once the reversing key 19 sends a signal to the main control chip MC2722 - 16P, the timing is interrupted and re - timed. In short, the specific timing scheme of the delay circuit can be designed according to the design requirements, but the function of the delay circuit is to cooperate with the control unit to delay the cut - off of the power supply to the solenoid valve 5.

[0043] In some embodiments, as Figure 6 shown, a second triode Q4 is further provided between the control terminal of the first MOS transistor Q2 and the pin of the control unit that can output a PWM control signal. The second triode Q4 plays a role in isolation and controlling the on - off of the first MOS transistor Q2.

[0044] In some embodiments, as Figure 6As shown, the control terminal of the second triode Q4 is electrically connected to the 9th pin of the main control chip MC2722-16P of the control unit. The control terminal of the first MOS transistor Q2 is electrically connected to the input terminal of the second triode, and this input terminal is also electrically connected to the power supply VCC12. For protection and voltage limiting, a resistor R8 is also connected in series between the control terminal of the first MOS transistor Q2 and the input terminal of the second triode, and a resistor R3 is also connected in series between the power supply VCC12 and this input terminal.

[0045] The first MOS transistor Q2 described above uses, for example, a MOS transistor of model WGD50N06S.

[0046] When understanding the present utility model, if necessary, the above structure can refer to other embodiments / appendices Figure 1 and it is understood that no further elaboration will be provided here.

[0047] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure, thinking of changes or substitutions, should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims described.

Claims

1. An electric clutch control circuit for an electric winch, including an electric clutch structure provided on the electric winch. The electric clutch structure includes a solenoid valve (5), and the solenoid valve (5) realizes electric clutch through the expansion and contraction of a push rod (16). It is characterized in that, It also includes a remote controller which is provided with a key circuit and a wireless signal transmitting circuit. The key circuit includes a clutch trigger key which is used to control the telescopic end of the solenoid valve (5) to extend to achieve separation in the clutch. The key circuit is electrically connected to the wireless signal transmitting circuit. It also includes a wireless signal receiving circuit which is wirelessly connected to the wireless signal transmitting circuit. The wireless signal receiving circuit includes a control unit and an execution unit. The control unit, the execution unit and the solenoid valve (5) are electrically connected in sequence. When the user outputs a wireless signal through the remote controller, the control unit controls the solenoid valve (5) to expand and contract through the execution unit according to the received wireless signal.

2. The electric clutch control circuit of the electric winch according to claim 1, characterized in that, The solenoid valve (5) includes a return spring (13). The execution unit includes a first triode. The control end of the first triode is electrically connected to the control unit. The first triode is used to conduct to control the coil of the solenoid valve (5) to be powered on so that the telescopic end extends to achieve separation in the clutch, and at the same time overcome the elastic force of the return spring (13). When the control unit controls the first triode to cut off the power supply of the solenoid valve (5), then under the action of the return spring (13), the telescopic end retracts to achieve re-engagement in the clutch.

3. The electric clutch control circuit of the electric winch according to claim 1, characterized in that, The solenoid valve (5) includes a return spring (13). The execution unit includes a first MOS transistor. The control end of the first MOS transistor is electrically connected to the control unit. The first MOS transistor is used to conduct to control the coil of the solenoid valve (5) to be powered on so that the telescopic end extends to achieve separation in the clutch, and at the same time overcome the elastic force of the return spring (13). When the control unit controls the first MOS transistor to cut off the power supply of the solenoid valve (5), then under the action of the return spring (13), the telescopic end retracts to achieve re-engagement in the clutch.

4. The electric clutch control circuit of the electric winch according to claim 3, characterized in that, The control end of the first MOS transistor is also electrically connected to the pin of the control unit that can output a PWM control signal. The control unit can be switched to output a PWM control signal to the control end of the first MOS transistor to reduce the supply current to the coil of the solenoid valve (5).

5. The electric clutch control circuit of the electric winch according to claim 4, characterized in that, A second triode is also provided between the control end of the first MOS transistor and the pin of the control unit that can output a PWM control signal. The second triode plays a role in isolation and controlling the on / off of the first MOS transistor.

6. The electric clutch control circuit of the electric winch according to claim 5, characterized in that, The control end of the second triode is electrically connected to the pin of the control unit that can output a PWM control signal. The control end of the first MOS transistor is electrically connected to the input end of the second triode, and this input end is also electrically connected to the power supply.

7. The electric clutch control circuit of the electric winch according to claim 2 or 3 or 4 or 5 or 6, characterized in that, It also includes a delay circuit which is electrically connected to the control unit. The delay circuit is used to provide a delay in the separated state. When the delay reaches the set value, the control unit controls the first MOS transistor to cut off the power supply of the solenoid valve (5), so that under the action of the return spring (13), the telescopic end retracts to achieve re-engagement in the clutch.

8. The electric clutch control circuit of the electric winch according to claim 1, wherein, The remote controller is provided with a power key (17), a clutch key (18) and a reversing key (19). The key circuit and the wireless signal transmitting circuit are both arranged in the remote controller. The power key (17) is used to turn on the power. The clutch key (18) serves as the clutch trigger key. The reversing key (19) is used to send positive and negative rotation signals of the electric winch.

9. The electric clutch control circuit of the electric winch according to claim 8, wherein, The solenoid valve includes a return spring (13). The actuator unit includes a first MOS transistor. The control terminal of the first MOS transistor is electrically connected to the control unit. The first MOS transistor is used to conduct electricity to control the coil of the solenoid valve (5) to be energized so that the telescopic end extends to achieve separation in the clutch, while overcoming the elastic force of the return spring (13). When the power button (17) turns off the power supply, the power supply to the solenoid valve (5) is cut off. Then, under the action of the return spring (13), the telescopic end retracts to achieve re-engagement in the clutch.

Images