Control device suitable for cabin cover of special vehicle

Abstract

The utility model discloses a control device suitable for a cabin cover of a special vehicle, which comprises two electric cylinders and an electric cylinder control device, the two electric cylinders are symmetrically arranged on two sides of the cabin cover of the special vehicle, each electric cylinder comprises a motor, a transmission device, a telescopic push rod and a displacement sensor, and the motor is connected with the telescopic push rod through the transmission device. The displacement sensor is mounted on the telescopic push rod; a motor control lead and a displacement sensor lead are both connected to the control aviation plug, and the electric cylinder control device is connected with the motors and the displacement sensors of the two electric cylinders through the control aviation plug. The controller controls the motors of the two electric cylinders to work, opening and closing of the cabin cover of the special vehicle can be met, the displacement sensor is installed on the telescopic push rod, and the position of the telescopic push rod can be obtained according to displacement information detected by the displacement sensor. Therefore, the action range of the electric cylinder can be adjusted according to the opening and closing angle required by the hatch cover, and the requirement of the opening and closing angle required by the hatch cover is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle control field especially relates to a kind of operation device suitable for special vehicle hatch. BACKGROUND

[0002] With the continuous development of manufacturing special vehicle technology, the hatch control device of special vehicle is converted from traditional hydraulic control to electric cylinder drive control. Traditional hydraulic control has high maintenance cost, large energy consumption and low precision, and cannot accurately synchronize control stroke action distance. SUMMARY

[0003] To solve the above technical problems, the utility model provides a kind of operation device suitable for special vehicle hatch with simple structure, safe and reliable.

[0004] The technical scheme that the utility model solves above technical problem is: a kind of operation device suitable for special vehicle hatch, including two electric cylinders and electric cylinder control device, two electric cylinders are symmetrically set on the both sides of special vehicle hatch, for controlling special vehicle hatch opening and closing;The electric cylinder includes motor, transmission device, telescopic push rod, displacement sensor, the motor is connected with telescopic push rod by transmission device, and the displacement sensor is installed on telescopic push rod;Motor control lead and displacement sensor lead are all connected on control aviation plug, and the electric cylinder control device is connected with the motor of two electric cylinders and displacement sensor respectively through control aviation plug.

[0005] The operation device suitable for special vehicle hatch, the electric cylinder control device includes shell, three-section switch control knob, main control circuit and electric cylinder drive circuit, the shell surface is equipped with three-section switch control knob, and the shell is equipped with main control circuit and electric cylinder drive circuit in, three-section switch control knob, displacement sensor are connected with main control circuit, and main control circuit is connected with the motor of electric cylinder after electric cylinder drive circuit.

[0006] The operation device suitable for special vehicle hatch, the main control circuit includes controller, signal acquisition circuit, electric cylinder control signal output circuit, the input end of signal acquisition circuit is connected with the signal output end of displacement sensor, the signal output end of signal acquisition circuit is connected with controller, the input end of electric cylinder control signal output circuit is connected with controller, the output end of electric cylinder control signal output circuit is connected with the input end of electric cylinder drive circuit, and the output end of electric cylinder drive circuit is connected with the motor of two electric cylinders.

[0007] The operation device suitable for special vehicle hatch, the shell side is equipped with control aviation socket, and control aviation socket cooperates with control aviation plug.

[0008] The signal output end of the displacement sensor is connected with the input end of the signal acquisition circuit through the control aviation plug and the control aviation socket.

[0009] The main control circuit further comprises a button switch acquisition circuit and a working indicator lamp output circuit, the signal input end of the button switch acquisition circuit is connected with the three-stage switch control knob, and the signal output end of the button switch acquisition circuit is connected with the controller.

[0010] The main control circuit further comprises a working indicator lamp output circuit, and the controller is connected with the opening indicator lamp and the closing indicator lamp through the working indicator lamp output circuit.

[0011] The side surface of the shell is provided with a power aviation socket, and the power distribution box of the special vehicle is connected with the main control circuit through the power aviation socket to provide working power for the whole electric cylinder control device.

[0012] The side surface of the shell is provided with a power aviation socket, and the power distribution box of the special vehicle is connected with the main control circuit through the power aviation socket to provide working power for the whole electric cylinder control device.

[0013] The side surface of the shell is provided with a power aviation socket, and the power distribution box of the special vehicle is connected with the main control circuit through the power aviation socket to provide working power for the whole electric cylinder control device.

[0014] The beneficial effect of the utility model lies in: the utility model controls the motor work of two electric cylinders through the controller, can satisfy the opening and closing of the special vehicle hatch, and the displacement sensor is installed on the telescopic push rod, according to the displacement information detected by the displacement sensor, the position of the telescopic push rod can be obtained, so that the electric cylinder action range can be adjusted according to the opening and closing angle required by the hatch, and the requirement of the opening and closing angle required by the hatch is satisfied. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structural schematic view of the electric cylinder of the utility model.

[0016] Figure 2 It is the structural schematic view of the electric cylinder control device of the utility model.

[0017] Figure 3 It is the side view of Figure 2

[0018] ​Figure 4 The circuit principle structure block diagram of the utility model.

[0019] Figure 5 The circuit diagram of the controller of the utility model.

[0020] Figure 6 The circuit diagram of the button switch acquisition circuit of the utility model.

[0021] Figure 7 The circuit diagram of the signal acquisition circuit of the utility model.

[0022] Figure 8 The circuit diagram of the electric cylinder control signal output circuit of the utility model.

[0023] Figure 9 The circuit diagram of the anti-reverse connection and power supply circuit of the utility model.

[0024] Figure 10 The circuit diagram of the working indicator lamp output circuit of the utility model. DETAILED DESCRIPTION

[0025] The utility model will be further explained in connection with the drawings and embodiments.

[0026] As Figures 1-4 shown, a kind of control device suitable for special vehicle hatch, including two electric cylinders and electric cylinder control device, two electric cylinders are symmetrically arranged in special vehicle hatch two sides, for controlling special vehicle hatch opening and closing;The electric cylinder includes motor 3, transmission device 4, telescopic push rod 1, displacement sensor 2, the motor 3 is connected with telescopic push rod 1 by transmission device 4, the displacement sensor 2 is installed on telescopic push rod 1;Motor control lead and displacement sensor 2 lead are all connected on control aviation plug 5, the electric cylinder control device is connected with the motor 3 of two electric cylinders, displacement sensor 2 by control aviation plug 5 respectively.

[0027] The electric cylinder control device includes shell 8, three-segment switch control knob 10, main control circuit 12 and electric cylinder drive circuit 13, the shell 8 surface is equipped with three-segment switch control knob 10, and shell 8 is equipped with main control circuit 12 and electric cylinder drive circuit 13 in, three-segment switch control knob 10, displacement sensor 2 are connected with main control circuit 12, and main control circuit 12 is connected with the motor 3 of electric cylinder after electric cylinder drive circuit 13.

[0028] The main control circuit 12 includes a controller, a signal acquisition circuit, and an electric cylinder control signal output circuit. The input terminal of the signal acquisition circuit is connected to the signal output terminal of the displacement sensor 2, and the signal output terminal of the signal acquisition circuit is connected to the controller. The input terminal of the electric cylinder control signal output circuit is connected to the controller, and the output terminal of the electric cylinder control signal output circuit is connected to the input terminal of the electric cylinder drive circuit 13. The output terminal of the electric cylinder drive circuit 13 is connected to the motors 3 of the two electric cylinders.

[0029] like Figure 5 As shown, the controller uses an MM32F0140C6P microcontroller as the main control chip. It uses an 8MHz crystal oscillator and supports a maximum main frequency of 72MHz. It uses GPIO ports for input detection and output control to ensure that the electric cylinder drive can work normally. The controller completes the acquisition of the position signal of the telescopic push rod 1 and the input signal of the three-stage switch control knob 10. Then, according to the input signal of the three-stage switch control knob 10, it outputs a signal to the electric cylinder drive circuit 13. The electric cylinder drive circuit 13 controls the motor 3 of the electric cylinder to move according to the output signal of the controller.

[0030] The signal acquisition circuit receives signals from the displacement sensor 2 and outputs the signals to the controller, allowing the controller to determine the current position of the telescopic push rod 1. Figure 7 As shown, the signal acquisition circuit can acquire the signal from displacement sensor 2 and convert it into a level signal that the controller can recognize through an optocoupler.

[0031] like Figure 8 As shown, the electric cylinder control signal output circuit uses the controller's level signal to control the relay output signal through an opto-isolator. A freewheeling diode is used at the relay coil to ensure that the relay can work effectively and safely.

[0032] The housing 8 has a control aviation socket 7 on its side. The control aviation socket 7 cooperates with the control aviation plug 5 for the electric cylinder control device to control the motor 3 of the electric cylinder, and for the displacement sensor 2 to send the position signal of the telescopic push rod 1 to the electric cylinder control device. The signal output terminal of the displacement sensor 2 is connected to the input terminal of the signal acquisition circuit after passing through the control aviation plug 5 and the control aviation socket 7.

[0033] The main control circuit 12 also includes a push-button switch acquisition circuit and a working indicator light output circuit. The signal input terminal of the push-button switch acquisition circuit is connected to the three-segment switch control knob 10, and the signal output terminal of the push-button switch acquisition circuit is connected to the controller. The surface of the housing 8 is provided with an on indicator light 11 and an off indicator light 15. The controller is connected to the on indicator light 11 and the off indicator light 15 respectively after passing through the working indicator light output circuit.

[0034] The button switch acquisition circuit is used to complete the acquisition of the switch signal of the three-stage switch control knob 10, and output the acquired signal to the controller for the controller to judge the current state of the three-stage switch control knob 10. Figure 6 As shown in the figure, the button switch acquisition circuit uses an optocoupler to isolate the 28V high voltage level acquired by the external button switch, and convert it into a level signal that can be recognized by the MCU.

[0035] The shell 8 is provided with a power aviation socket 6 on the side, and a power switch 9 and a power indicator lamp 14 on the surface. The main control circuit 12 further includes an anti-reverse connection and power supply circuit. The special vehicle distribution box is connected to the main control circuit 12 in turn through the power aviation socket 6, the power switch 9, the anti-reverse connection and power supply circuit, and the power indicator lamp 14, thereby providing working power for the entire electric cylinder control device. The vehicle operator operates the power switch 9 on the shell 8 to turn on the electric cylinder control device, and operates the three-stage switch control knob 10 to control the opening, closing or stopping of the hatch.

[0036] The anti-reverse connection and power supply circuit is used to protect the electric cylinder control device from being damaged due to reverse connection of the power supply by using a MOS tube, and to provide necessary power supply for the electric cylinder control device. Figure 9 As shown in the figure, the anti-reverse connection and power supply circuit uses a PMOS chip for anti-reverse connection. When the input power is connected in reverse, the PMOS cannot be turned on, and the circuit cannot form a loop to protect the circuit. At the same time, the circuit uses a 24V to 5V power module to provide power supply for the MCU and its related circuits.

[0037] As shown in the figure, the working indicator lamp output circuit uses a 3.3V common anode double-color light-emitting diode. The cathode level of the light-emitting diode is controlled by the GPIO port of the controller to drive the light-emitting diode to turn on or off. Figure 10

[0038] The controller in the main control circuit 12 receives the state signal of the three-stage switch control knob 10 acquired by the button switch acquisition circuit, judges the current action signal of the electric cylinder, and at the same time, the controller receives the signal of the displacement sensor 2 acquired by the signal acquisition circuit, judges the current position information of the electric cylinder, and outputs corresponding control signals according to the action signal and position information of the electric cylinder. The control signals are sent to the electric cylinder driving circuit 13 through the electric cylinder control signal output circuit, and the electric cylinder driving circuit 13 receives the control signals to judge whether to execute the control signals to make the electric cylinder move, thereby driving the hatch to open, close or stop.​

Claims

1. A control device for a special vehicle hatch, characterized in that: The application relates to a special vehicle cabin cover opening and closing device comprising two electric cylinders and an electric cylinder control device, wherein the two electric cylinders are symmetrically arranged on the two sides of the special vehicle cabin cover and are used for controlling the opening and closing of the special vehicle cabin cover; the electric cylinder comprises a motor, a transmission device, an extension push rod and a displacement sensor; the motor is connected with the extension push rod through the transmission device; and the displacement sensor is installed on the extension push rod; the motor control lead and the displacement sensor lead are connected with a control aviation plug; and the electric cylinder control device is connected with the motor and the displacement sensor of the two electric cylinders through the control aviation plug.

2. The handling device suitable for a special vehicle hatch according to claim 1, characterized in that: The electric cylinder control device comprises a shell, a three-section switch control knob, a main control circuit and an electric cylinder driving circuit; the surface of the shell is provided with the three-section switch control knob; the shell is internally provided with the main control circuit and the electric cylinder driving circuit; the three-section switch control knob and the displacement sensor are connected with the main control circuit; and the main control circuit is connected with the motor of the electric cylinder through the electric cylinder driving circuit.

3. The handling device suitable for use with a special vehicle hatch according to claim 2, characterized in that: The main control circuit comprises a controller, a signal acquisition circuit and an electric cylinder control signal output circuit; the input end of the signal acquisition circuit is connected with the signal output end of the displacement sensor; the signal output end of the signal acquisition circuit is connected with the controller; the input end of the electric cylinder control signal output circuit is connected with the controller; the output end of the electric cylinder control signal output circuit is connected with the input end of the electric cylinder driving circuit; and the output end of the electric cylinder driving circuit is connected with the motor of the two electric cylinders.

4. The handling device suitable for use with a special vehicle hatch according to claim 3, characterized in that: The side surface of the shell is provided with a control aviation socket which is matched with the control aviation plug.

5. The handling device suitable for use with a special vehicle hatch according to claim 4, characterized in that: The signal output end of the displacement sensor is connected with the input end of the signal acquisition circuit through the control aviation plug and the control aviation socket.

6. The handling device suitable for use with a special vehicle hatch according to claim 3, characterized in that: The main control circuit further comprises a button switch acquisition circuit and a working indicator lamp output circuit; the signal input end of the button switch acquisition circuit is connected with the three-section switch control knob; and the signal output end of the button switch acquisition circuit is connected with the controller.

7. The handling device suitable for use with a special vehicle hatch according to claim 6, characterized in that: The surface of the shell is provided with an opening indicator lamp and a closing indicator lamp; the main control circuit further comprises a working indicator lamp output circuit; and the controller is connected with the opening indicator lamp and the closing indicator lamp through the working indicator lamp output circuit.

8. The control device for a hatch of a special vehicle according to claim 3, characterized in that: The side surface of the shell is provided with a power aviation socket; a special vehicle distribution box is connected with the main control circuit through the power aviation socket, so as to provide working power supply for the whole electric cylinder control device.

9. The handling device suitable for use with a special vehicle hatch according to claim 8, characterized in that: The surface of the shell is provided with a power switch and a power indicator lamp; a special vehicle distribution box is connected with the main control circuit through the power aviation socket, the power switch and the power indicator lamp in sequence, so as to provide working power supply for the whole electric cylinder control device.

10. The handling device suitable for use with a special vehicle hatch according to claim 9, characterized in that: The main control circuit further comprises an anti-reverse connection and power supply circuit; a special vehicle distribution box is connected with the main control circuit through the power aviation socket, the power switch, the anti-reverse connection and power supply circuit and the power indicator lamp in sequence, so as to provide working power supply for the whole electric cylinder control device.

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