Wireless remote control device of disc type mechanical steering system

Abstract

A wireless remote control device of a disc type mechanical steering system comprises a stepping motor control circuit and a steering driving mechanism, and aims to replace a mode that a vehicle commander operates the wireless remote control device to control steering, and a mode that a driver operates a steering wheel to control steering. The stepping motor control circuit comprises a wireless remote controller, a wireless signal receiver, a single-chip microcomputer, a stepping motor driver, a stepping motor, a switch voltage-stabilized source and a wire. The steering driving mechanism comprises a rigid framework (17), and a stepping motor (5), a driving gear (13), a driven gear (14), a driving shaft (16), a clutch handle (18), a positioning bolt (19), a bearing A (20), a bearing B (21), a bearing C (22), a bearing D (23) and a shell which are mounted on the rigid framework (17), the rigid framework (17) is mounted on the steering shaft (15) through the bearings, and a fixing rod is mounted on the outer side of the rigid framework (17) and is fixed to a cab nearby.

Description

Technical Field

[0001] The utility model relates to a disc-type mechanical steering system control device, in particular to a disc-type mechanical steering system control device capable of wireless remote control. Background Art

[0002] In special circumstances, in order to achieve the goal of accurately following the route, the vehicle's direction needs to be precisely controlled. Currently, a vehicle commander usually observes the deviation of the vehicle along the route from the front or back of the vehicle and instructs the driver to continuously correct the direction. The driver controls the vehicle along the required route by observing, understanding, and executing the vehicle commander's instructions. However, this method has the following problems or defects:

[0003] First, the vehicle commander and the driver must have line of sight to complete effective command and control. The vehicle commander's position must ensure both line of sight with the driver and easy observation of the vehicle's movement. However, sometimes objective conditions cannot meet both the line of sight and observation requirements.

[0004] 2. When the vehicle commander directs the driver, there are often deviations between the commander's command and the driver's execution, which requires constant correction to achieve the desired results. Efficiency needs to be improved. Summary of the Invention

[0005] In order to solve the above problems, the utility model provides a wireless remote control device for a disc-type mechanical steering system, which aims to replace the driver's operation of the steering wheel to control the steering by the vehicle commander operating the wireless remote control device.

[0006] To achieve the above object, the present invention provides a wireless remote control device for a disc-type mechanical steering system, which is implemented as follows:

[0007] A wireless remote control device for a disc-type mechanical steering system comprises a stepper motor control circuit and a steering drive mechanism. The stepper motor control circuit includes a wireless remote control, a wireless signal receiver, a single-chip microcomputer, a stepper motor driver, a stepper motor, a switching regulated power supply, and wires. The wireless remote control control panel is provided with a power switch, a power indicator light, a start / stop control switch, and a steering control handle. The wireless remote control is internally powered by a rechargeable battery and externally mounted with a remote control antenna. Pins RX and TX of the wireless signal receiver are connected to pins TXD and RXD of the single-chip microcomputer, respectively. The wireless signal receiver is powered by the switching regulated power supply via pins V+ and GND. Pins P1.0, P1.1, and P1.2 of the single-chip microcomputer are connected to the wireless signal receiver.2 are respectively connected to the pins PUL-, DIR-, and EN- of the stepper motor driver, the single-chip microcomputer is powered by the pins Vcc and Vss through the switching regulated power supply, the pins PUL+, DIR+, and EN+ of the stepper motor driver are connected to the DC voltage output terminal of the single-chip microcomputer, the pins A+, A-, B+, and B- of the stepper motor driver are respectively connected to the corresponding ports of the stepper motor, the stepper motor driver is powered by the pins V+ and GND through the switching regulated power supply, and the switching regulated power supply is supplied with DC power by the vehicle battery; the steering drive mechanism includes a rigid frame and a stepper motor mounted thereon. The driving motor, the driving gear, the driven gear, the driving shaft, the clutch handle, the positioning pin, the A bearing, the B bearing, the C bearing, the D bearing and the housing. The rigid frame is welded into a rectangular frame by 4 metal plates and is connected to the steering shaft through the C bearing and the D bearing. A fixing rod is installed on the outside of the rigid frame and fixed to the cockpit nearby. The outer rings of the C bearing and the D bearing are respectively interference fit with the bearing holes on the rigid frame and are axially positioned by the inner and outer bearing caps. The inner rings of the C bearing and the D bearing are respectively interference fit with the steering shaft and are axially positioned by the inner and outer shaft retaining rings. The driven gear is respectively The semicircular key is used for circumferential positioning and the two shafts are fixedly connected to the steering shaft with a retaining ring for axial positioning. The stepper motor is mounted on the rigid frame through a flange and drives the drive shaft through a coupling. The drive shaft is a spline shaft, the upper end of which is connected to the stepper motor through a coupling, and the lower end is mounted on the rigid frame through the B bearing. The outer ring of the B bearing is interference fit with the bearing hole on the rigid frame and is axially positioned using two inner and outer bearing caps. The inner ring of the B bearing is interference fit with the drive shaft and is axially positioned using retaining rings for inner and outer shafts. The inner hole of the driving gear is a spline hole that is spline-connected to the spline of the drive shaft. The inner race of bearing A is fitted with the lower end of the driving gear hub and is axially positioned using a shaft retaining ring. The outer race of bearing A is mounted on the clutch handle. The up and down movement of the clutch handle is guided by the guide holes of the rigid frame. After reaching the separation or engagement position, the positioning pin is inserted into the separation positioning pin hole or engagement positioning pin hole on the clutch handle for positioning. The installation position of the stepper motor, bearings B, C, and D must ensure that the parallelism of the steering shaft and the drive shaft meets the requirements and that the meshing clearance between the driving gear and the driven gear meets the requirements.

[0008] The utility model adopts a stepping motor wireless control circuit and a steering drive mechanism, thereby achieving the following beneficial effects:

[0009] 1. The vehicle commander uses the wireless remote control device of the disc-type mechanical steering system to directly control the vehicle steering. The flexible position does not require the driver to have a clear line of sight, which is beneficial for the vehicle commander to observe the vehicle's movement;

[0010] 2. The vehicle commander uses a wireless remote control device for the disc-type mechanical steering system to independently observe and control the vehicle's movement, eliminating the need for coordination with the driver and improving operational accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention is described in further detail below with reference to the accompanying drawings.

[0012] Attachment Figure 1 This is a schematic diagram of the stepping motor control circuit of the utility model;

[0013] Attachment Figure 2 It is a schematic diagram of the steering drive mechanism of the present utility model. DETAILED DESCRIPTION

[0014] The preferred embodiment of the present invention is:

[0015] The invention relates to a wireless remote control device for a disc-type mechanical steering system, comprising a stepping motor control circuit and a steering drive mechanism.

[0016] like Figure 1 As shown, the stepper motor control circuit includes a wireless remote control 1, a wireless signal receiver 2, a single-chip microcomputer 3, a stepper motor driver 4, a stepper motor 5, a switching regulated power supply 6 and a wire. A power switch 7, a power indicator light 8, a start / stop control switch 9, and a steering control handle 10 are set on the control panel of the wireless remote control 1. A rechargeable battery is installed inside the wireless remote control 1 to power it, and a remote control antenna 11 is installed outside. The pins RX and TX of the wireless signal receiver 2 are connected to the pins TXD and RXD of the single-chip microcomputer 3 respectively. The wireless signal receiver 2 is powered by the pins V+ and GND through the switching regulated power supply 6. Pins P1.0, P1.1, and P1.2 of the chip computer 3 are respectively connected to pins PUL-, DIR-, and EN- of the stepper motor driver 4. The microcontroller 3 is powered by pins Vcc and Vss through the switching regulated power supply 6. Pins PUL+, DIR+, and EN+ of the stepper motor driver 4 are connected to the DC voltage output end of the microcontroller 3. Pins A+, A-, B+, and B- of the stepper motor driver 4 are respectively connected to the corresponding ports of the stepper motor 5. The stepper motor driver 4 is powered by pins V+ and GND through the switching regulated power supply 6. The switching regulated power supply 6 is supplied with DC power by the vehicle battery.

[0017] like Figure 2As shown, the steering drive mechanism includes a rigid frame 17 and a stepping motor 5, a driving gear 13, a driven gear 14, a driving shaft 16, a clutch handle 18, a positioning pin 19, an A bearing 20, a B bearing 21, a C bearing 22, a D bearing 23 and a housing installed thereon. The rigid frame 17 is welded into a rectangular frame by four metal plates and is connected to the steering shaft 15 through the C bearing 22 and the D bearing 23. A fixing rod is installed on the outside of the rigid frame 17 to fix it to the cockpit nearby. The outer rings of the bearings C bearing 22 and D bearing 23 are respectively connected to the rigid frame. The bearing holes on the frame 17 are interference fit and are axially positioned by inner and outer bearing caps respectively. The inner rings of the C bearing 22 and the D bearing 23 are respectively interference fit with the steering shaft 15 and are axially positioned by inner and outer shaft retaining rings respectively. The driven gear 14 is fixed to the steering shaft 15 by circumferential positioning of a semicircular key and axial positioning of two shaft retaining rings. The stepper motor 5 is mounted on the rigid frame 17 through a flange and drives the drive shaft 16 through a coupling. The drive shaft 16 is a spline shaft, and the upper end is connected to the stepper motor 5 through a coupling. The lower end is mounted on the rigid frame 17 through the B bearing 21. The outer ring of the B bearing 21 is interference fit with the bearing hole on the rigid frame 17 and is axially positioned with two inner and outer bearing caps. The inner ring of the B bearing 21 is interference fit with the drive shaft 16 and is axially positioned with two inner and outer shaft retaining rings. The inner hole of the driving gear 13 is a spline hole that matches the spline of the drive shaft 16 and can slide axially. The inner ring of the A bearing 20 is interference fit with the lower end of the hub of the driving gear 13 and is axially positioned with a shaft retaining ring. The A The clutch handle 18 is mounted on the outer ring of the bearing 20. The up and down operating movement of the clutch handle 18 is guided by the guide hole of the rigid frame 17 and is positioned by the positioning pin 19 inserted into the separation positioning pin hole or the combination positioning pin hole on the clutch handle 18 after reaching the separation or combination position. The installation position of the stepper motor 5, the B bearing 21, the C bearing 22, and the D bearing 23 must ensure that the parallelism of the steering shaft 15 and the drive shaft 16 meets the requirements and that the meshing clearance between the driving gear 13 and the driven gear 14 meets the requirements.

[0018] The working principle and working process of this utility model are as follows:

[0019] 1. Pull out the positioning pin 19 and push the clutch handle 18 upward to move the driving gear 13 upward along the drive shaft 16 to engage with the driven gear 14. After it is in place, insert the positioning pin 19 into the combined positioning pin hole of the clutch handle 18 for positioning. In this way, the stepping motor 5 can drive the driving gear 13 through the drive shaft 16 to drive the driven gear 14 to rotate in the required direction at a predetermined speed, and finally realize the steering of the mechanical steering system through the steering shaft 15.

[0020] 2. Turn on the power switch and power switch of the switching regulated power supply 6 to power on the radio receiver 2, the single-chip microcomputer 3, and the stepper motor driver 4; turn on the power switch 7 of the wireless remote control 1, and the power indicator light 8 lights up, indicating that the wireless remote control 1 is powered normally. In this way, the wireless remote control 1 can send a wireless signal instruction to the wireless signal receiver 2. The wireless signal receiver 2 converts the received wireless signal into a digital signal and transmits it to the single-chip microcomputer 3. After processing by the single-chip microcomputer 3, the instruction signal is formed and transmitted to the stepper motor driver 4 through the pin of the single-chip microcomputer 3 to generate a corresponding drive signal, thereby driving the stepper motor 5 to execute the instruction of the wireless remote control 1.

[0021] 3. When the start-stop control switch 9 of the wireless remote controller 1 is turned on, the stepper motor driver 4 is enabled; the steering control handle 10 is turned left or right to a certain position at an appropriate speed, and the pin DIR- of the stepper motor driver 4 receives a direction signal for turning left or right, and the pin PUL- of the stepper motor driver 4 receives a pulse signal, the pulse frequency is proportional to the turning speed of the steering control handle 10, and the number of pulses is positively correlated with the turning distance of the steering control handle 10. The stepper motor driver 4 processes the received signal and forms a drive instruction, instructing the stepper motor 5 to rotate forward or reverse the number of circles specified by the signal at the speed specified by the signal, and finally causes the mechanical steering system to rotate left or right at the instructed speed by the instructed angle.

[0022] 4. After completing the steering task, turn off the start-stop control switch 9 to disable the stepper motor driver 4, turn off the power switch 7 to power off the wireless remote controller 1, the power indicator light 8 goes out, and disconnect the power switch and power switch of the switching regulated power supply 6 to power off and reset the system.

[0023] 5. Pull out the positioning pin 19 and pull the clutch handle 18 downward to move the driving gear 13 downward along the drive shaft 16 and separate from the driven gear 14. After it is in place, insert the positioning pin 19 into the separation positioning pin hole of the clutch handle 18 to position it. Figure 2 Indicated by the dotted line.

Claims

1. A wireless remote control device for a disc-type mechanical steering system, comprising a stepper motor control circuit and a steering drive mechanism, characterized by: The stepper motor control circuit comprises a wireless remote controller (1), a wireless signal receiver (2), a single chip microcomputer (3), a stepper motor driver (4), a stepper motor (5), a switching regulated power supply (6) and a wire. A power switch (7), a power indicator light (8), a start / stop control switch (9) and a steering control handle (10) are provided on the control panel of the wireless remote controller (1). A rechargeable battery is installed inside the wireless remote controller (1) for power supply and a remote controller antenna (11) is installed outside the wireless remote controller. Pins RX and TX of the wireless signal receiver (2) are connected to pins TXD and RXD of the single chip microcomputer (3) respectively. The wireless signal receiver (2) is powered by pins V+ and GND through the switching regulated power supply (6). , the pins P1.0, P1.1, and P1.2 of the single-chip microcomputer (3) are respectively connected to the pins PUL-, DIR-, and EN- of the stepper motor driver (4); the single-chip microcomputer (3) is powered by the pins Vcc and Vss through the switching regulated power supply (6); the pins PUL+, DIR+, and EN+ of the stepper motor driver (4) are connected to the DC voltage output end of the single-chip microcomputer (3); the pins A+, A-, B+, and B- of the stepper motor driver (4) are respectively connected to the corresponding ports of the stepper motor (5); the stepper motor driver (4) is powered by the pins V+ and GND through the switching regulated power supply (6); and the switching regulated power supply (6) is supplied with DC power by the vehicle battery;The steering drive mechanism comprises a rigid frame (17) and a stepping motor (5), a driving gear (13), a driven gear (14), a driving shaft (16), a clutch handle (18), a positioning pin (19), an A bearing (20), a B bearing (21), a C bearing (22), a D bearing (23) and a housing. The rigid frame (17) is welded into a rectangular frame by four metal plates and is connected to the steering shaft (15) through the C bearing (22) and the D bearing (23). A fixing rod is installed on the outside of the rigid frame (17) so as to be fixed to the cockpit nearby. The outer rings of the C bearing (22) and the D bearing (23) are respectively The C bearing (22) and the D bearing (23) are respectively interference fit with the bearing holes on the rigid frame (17) and are respectively axially positioned by the inner and outer bearing caps. The inner rings of the bearings of the C bearing (22) and the D bearing (23) are respectively interference fit with the steering shaft (15) and are respectively axially positioned by the inner and outer shaft retaining rings. The driven gear (14) is fixed to the steering shaft (15) by the circumferential positioning of the semicircular key and the axial positioning of the two shaft retaining rings. The stepper motor (5) is mounted on the rigid frame (17) through a flange and drives the drive shaft (16) through a coupling. The drive shaft (16) is a spline shaft, the upper end of which is connected to the stepper motor ( 5) The lower end is mounted on the rigid frame (17) through the B bearing (21), the outer ring of the B bearing (21) is interference-fitted with the bearing hole on the rigid frame (17) and is axially positioned by two inner and outer bearing caps, the inner ring of the B bearing (21) is interference-fitted with the drive shaft (16) and is axially positioned by two inner and outer shaft retaining rings, the inner hole of the driving gear (13) is a spline hole that matches the spline of the drive shaft (16) and can slide axially, the inner ring of the A bearing (20) is interference-fitted with the lower end of the hub of the driving gear (13) and is axially positioned by a shaft retaining ring, the A bearing ( 20) The clutch handle (18) is installed on the outer ring. The up and down operation movement of the clutch handle (18) is guided by the guide hole of the rigid frame (17) and is positioned by the positioning pin (19) inserted into the separation positioning pin hole or the combination positioning pin hole on the clutch handle (18) after reaching the separation or combination position. The installation position of the stepping motor (5), the B bearing (21), the C bearing (22), and the D bearing (23) must ensure that the parallelism of the steering shaft (15) and the drive shaft (16) meets the requirements and the meshing clearance between the driving gear (13) and the driven gear (14) meets the requirements.

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