Vehicle-mounted speed sensor driving device

Abstract

The utility model relates to a kind of vehicle-mounted speed sensor driving device, including shell and for detecting photoelectric speed sensor, hall speed sensor, left side surface of vertical board is equipped with motor mounting seat by bolt, stepping motor is installed on the outside surface of motor mounting seat, fixed plate is welded in the left side surface of vertical board, its controller and charging unit are bolted on the end surface of fixed plate, recess is all set up in the upper and lower end surface of vertical board, U-shaped plate is welded in recess, limit plate is all installed in the top and bottom of shell inner side, U-shaped plate can slide along the direction of limit plate, coupling is connected to the output end of stepping motor, connecting shaft one is connected with coupling by penetrating vertical board, gear is installed on the surface of connecting shaft one, connecting shaft two is bolted on the right side surface of gear, square recess is set up in the end surface of connecting shaft two.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle-mounted detection devices, specifically a vehicle-mounted speed sensor driving device. Background Technology

[0002] The vehicle speed sensor drive unit is an analog detection device that mainly detects the motion state parameters of a vehicle and converts the raw data into a standard signal that can be recognized by the vehicle control unit through signal processing. The emergence of this drive unit has greatly facilitated the detection process.

[0003] However, the speed sensor drive device mentioned above still has some technical problems. When the photoelectric speed sensor and Hall speed sensor of the train were installed on the drive device, it was found that during simulation, due to the high speed of the gears, the results of multiple tests occasionally showed that the values ​​were too different. In addition, when maintaining the drive device, it is necessary to first disassemble the outer plate, then disassemble the controller and charging unit, and then disassemble the stepper motor. This disassembly sequence is cumbersome and troublesome. Moreover, the maintenance mainly involves checking the controller, charging unit, gears, and stepper motor. Each inspection and maintenance takes a long time.

[0004] In order to solve the above-mentioned technical problems, improve the accuracy of detection, and facilitate subsequent maintenance and repair work, an on-board speed sensor driving device is proposed to solve the above-mentioned existing technical problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a vehicle-mounted speed sensor drive device, which solves the problems of inaccurate detection values ​​during operation and the complex disassembly of internal structures during subsequent inspection and maintenance.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vehicle-mounted speed sensor driving device, comprising a housing and a photoelectric speed sensor and a Hall speed sensor for detection. An integrated driving simulation structure is installed inside the housing. The photoelectric speed sensor and the Hall speed sensor are used to detect the driving simulation structure. The driving simulation structure includes a vertical plate, a motor mounting base, a stepper motor, a fixing plate, a controller and charging unit, a limit plate, a coupling, a connecting shaft, a gear, and a U-shaped plate. The vertical plate is installed inside the housing and fixedly connected by bolts. Bolts are also used on the left side of the vertical plate. A motor mounting base is installed, and the stepper motor is mounted on the outer side of the motor mounting base. A fixing plate is welded to the left side of the upright plate. The controller and charging unit are bolted to the upper end of the fixing plate. Grooves are provided on both the upper and lower ends of the upright plate, and U-shaped plates are welded in the grooves. Limit plates are installed on the top and bottom of the inner side of the housing. The U-shaped plates can slide along the direction of the limit plates. A coupling is connected to the output end of the stepper motor. A connecting shaft one passes through the upright plate and is connected to the coupling. A gear is installed on the surface of the connecting shaft one. A connecting shaft two is bolted to the right side of the gear. A square groove is provided on the end face of the connecting shaft two.

[0007] Furthermore, through the above technical solution, a bearing seat is installed on the right side of the upright plate, and the inner ring of the bearing seat is connected to one surface of the connecting shaft.

[0008] Furthermore, an installation plate is mounted on the inner side of the outer shell, located on the right side of the upright plate. A circular opening is provided on the surface of the installation plate, and a bearing is installed in the opening. The inner ring of the bearing contacts the surface of the connecting shaft but is not fixedly connected.

[0009] As a preferred technical solution, a mounting base one is installed on the upper end face of the housing, and a photoelectric speed sensor is installed on the mounting base one, with the detection end of the photoelectric speed sensor aligned with the middle of the gear. A mounting base two is installed on the right side face of the housing, and a Hall speed sensor is installed on the mounting base two, with the detection end extending into the square groove on the end face of the connecting shaft two.

[0010] Furthermore, baffles are symmetrically installed on the top and bottom surfaces of the inner side of the outer shell, with the left side of the baffles contacting the right side of the upright plate.

[0011] As a preferred technical solution, a display screen is mounted on the front side of the housing, wherein the side of the upright plate facing the display screen is flat and does not contact the rear side of the display screen.

[0012] Compared with the prior art, the present invention provides a vehicle-mounted speed sensor driving device, which has the following advantages:

[0013] 1. This drive device, through a limiting plate, a U-shaped plate, and a fixing plate, allows the upright plate to be installed inside the housing during installation. The controller and charging unit are then mounted on the fixing plate, and the stepper motor is installed on one side of the upright plate. Assembly is relatively convenient; simply snap the U-shaped plate onto the limiting plate and push it until it contacts the baffle. Then, use bolts to fix the upright plate to the housing. Disassembly is simple: remove the side plate on one side of the housing and unscrew the bolts connecting the upright plate to the housing. The coupling connecting the first shaft to the stepper motor output, the gear connected to the first shaft, and the second shaft connected to the gear are all interconnected. At this point, simply pull the fixing plate or the stepper motor to pull out the upright plate, allowing it to be pulled out as a whole, facilitating disassembly and maintenance.

[0014] 2. In order to improve the stability of the gears during operation of the connecting shaft 2 and the stepper motor, a bearing seat is installed on one side of the vertical plate, and the bearing is in contact with the surface of the connecting shaft 2, but not fixed (the main reason for not fixing is to facilitate disassembly, inspection and maintenance). This makes the contact point two, which can greatly improve the stability of operation and correspondingly improve the accuracy of data detection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the present invention;

[0016] Figure 2 This utility model Figure 1 A diagram showing the view from the right.

[0017] Figure 3 This utility model Figure 2 AA sectional view;

[0018] Figure 4 This utility model Figure 1 A three-dimensional schematic diagram;

[0019] Figure 5 This utility model Figure 1 The diagram on the left;

[0020] Figure 6 This is a schematic diagram of the internal structure of the outer shell of this utility model;

[0021] Figure 7 This is a schematic diagram of the motor mounting base of this utility model;

[0022] Figure 8 This is a schematic diagram of the mounting plate of this utility model.

[0023] In the diagram: 1. Housing; 2. Mounting base one; 3. Photoelectric speed sensor; 4. Mounting base two; 5. Hall effect speed sensor; 6. Display screen; 7. Mounting plate; 8. Bearing; 9. Vertical plate; 10. Motor mounting base; 11. Stepper motor; 12. Fixing plate; 13. Controller and charging unit; 14. Limiting plate; 15. Coupling; 16. Connecting shaft one; 17. Bearing housing; 18. Gear; 19. Connecting shaft two; 20. U-shaped plate; 21. Baffle. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example

[0026] Please see Figure 1-8 This utility model provides the following technical solution: a vehicle-mounted speed sensor driving device, including a housing 1 and a photoelectric speed sensor 3 and a Hall speed sensor 5 for detection. An integrated driving simulation structure is installed inside the housing 1. The photoelectric speed sensor 3 and the Hall speed sensor 5 are used to detect the driving simulation structure. The driving simulation structure includes a vertical plate 9, a motor mounting base 10, a stepper motor 11, a fixing plate 12, a controller and charging unit 13, a limiting plate 14, a coupling 15, a connecting shaft 16, a gear 18, and a U-shaped plate 20. The vertical plate 9 is installed inside the housing 1 and fixedly connected by bolts. The motor mounting base 10 is installed on the left side of the vertical plate 9 by bolts. Stepper motor 11 is mounted on the outer side of motor mounting base 10. Fixing plate 12 is welded to the left side of upright plate 9. Its controller and charging unit 13 are mounted on the upper end of fixing plate 12 by bolts. Grooves are provided on both the upper and lower end of upright plate 9. U-shaped plates 20 are welded in the grooves. Limiting plates 14 are installed on the top and bottom of the inner side of the outer shell 1. U-shaped plates 20 can slide along the direction of limiting plates 14. The output end of stepper motor 11 is connected to coupling 15. Connecting shaft 16 passes through upright plate 9 and is connected to coupling 15. Gear 18 is installed on the surface of connecting shaft 16. Connecting shaft 29 is installed on the right side of gear 18 by bolts. A square groove is provided on the end face of connecting shaft 29.

[0027] In this implementation plan, the specific working principle is as follows: In actual use, taking a high-speed train as an example, the photoelectric speed sensor 3 and the Hall speed sensor 5 in the high-speed train are respectively installed as follows: Figure 4At the indicated position, and by setting the parameters on the display screen 6 (the parameters are: selecting photoelectric speed sensor 3 or Hall speed sensor 5; selecting the forward or reverse rotation of stepper motor 11 via controller charging unit 13; inputting the wheel diameter value (unit: cm); inputting the range (e.g., 1000 cm); inputting the simulated speed setting value (1-50 km / h); and inputting the actual number of wheel teeth of the train), the drive device is started, causing stepper motor 11 to drive the rotation of connecting shaft 16 via coupling 15, which in turn drives gear 18 to rotate, and is detected by photoelectric speed sensor 3. When gear 18 rotates, it drives Hall speed sensor 5 through connecting shaft 19 for detection. See [reference missing] Figure 3 As can be seen, the upright plate 9, controller and charging unit 13, connecting shaft 16, and connecting shaft 2 19 are interconnected. When the drive device needs to be inspected and maintained after the test is completed, it is only necessary to remove the side plate located on the right side of the outer shell 1, and then remove the bolts that fix the outer shell 1 to the upright plate 9. It should be noted that the connecting shaft 2 19 is not fixedly connected to the bearing 8. Furthermore, the controller and charging unit 13 are installed on the fixed plate 12. Therefore, it is only necessary to pull the fixed plate 12 or pull the stepper motor 11 so that the U-shaped plate 20 located at the upper and lower ends of the upright plate 9 slides out along the limiting plate 14 located on the top and bottom surfaces of the inner side of the outer shell 1 to complete the overall disassembly. This method is more convenient and greatly saves the disassembly time during the inspection and maintenance operation.

[0028] To improve the stability of the connecting shaft 16 during rotation, please refer to the following: Figure 3 As can be seen, a bearing seat 17 is installed on the right side of the upright plate 9, and the inner ring of the bearing seat 17 is connected to the surface of the connecting shaft 16.

[0029] Based on the above, in order to improve the stability of the connecting shaft 19 during rotation, please refer to the following for details. Figure 3 and Figure 8 As can be seen, an mounting plate 7 is installed on the inner side of the outer shell 1 on the right side of the upright plate 9. A circular opening is provided on the surface of the mounting plate 7, and a bearing 8 is installed in the opening. The inner ring of the bearing 8 is in contact with the surface of the connecting shaft 19 but is not fixedly connected.

[0030] See Figure 1-4 As can be seen, a mounting base 2 is installed on the upper surface of the outer shell 1, and a photoelectric speed sensor 3 is installed on the mounting base 2, with the detection end of the photoelectric speed sensor 3 aligned with the middle of the gear 18. A mounting base 4 is installed on the right side of the outer shell 1, and a Hall speed sensor 5 is installed on the mounting base 4, with the detection end extending into the square groove on the end face of the connecting shaft 19.

[0031] To facilitate bolt connection between the upright plate 9 and the outer casing 1 during installation, please refer to the following for details. Figure 8As can be seen, baffles 21 are symmetrically installed on the top and bottom surfaces of the inner side of the outer shell 1, and the left side of the baffle 21 is in contact with the right side of the upright plate 9.

[0032] See Figure 1 and Figure 6 As can be seen, a display screen 6 is installed on the front side of the outer casing 1. The side of the upright plate 9 facing the display screen 6 is flat and does not contact the rear side of the display screen 6. The display screen 6 is wired to the controller and charging unit 13 and can control the operation of the stepper motor 11 and the setting of various parameters. This is the prior art and will not be described in detail.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vehicle-mounted speed sensor driving device, comprising a housing (1) and a photoelectric speed sensor (3) and a Hall speed sensor (5) for detection, characterized in that: An integrated drive simulation structure is installed inside the outer casing (1). A photoelectric speed sensor (3) and a Hall speed sensor (5) are used to detect the drive simulation structure. The drive simulation structure includes a vertical plate (9), a motor mounting base (10), a stepper motor (11), a fixing plate (12), a controller and charging unit (13), a limit plate (14), a coupling (15), a connecting shaft (16), a gear (18), and a U-shaped plate (20). The vertical plate (9) is installed inside the outer casing (1) and fixedly connected by bolts. The motor mounting base (10) is installed on the left side of the vertical plate (9) by bolts. The stepper motor (11) is installed on the outer side of the motor mounting base (10). The fixing plate (12) is welded. The controller and charging unit (13) are attached to the left side of the upright plate (9) and are installed on the upper end of the fixed plate (12) by bolts. Grooves are provided on both the upper and lower end surfaces of the upright plate (9), and U-shaped plates (20) are welded in the grooves. Limiting plates (14) are installed on the top and bottom of the inner side of the outer shell (1). The U-shaped plate (20) can slide along the direction of the limiting plate (14). The output end of the stepper motor (11) is connected to a coupling (15). The first connecting shaft (16) passes through the upright plate (9) and is connected to the coupling (15). A gear (18) is installed on the surface of the first connecting shaft (16). A second connecting shaft (19) is installed on the right side of the gear (18) by bolts. A square groove is provided on the end face of the second connecting shaft (19).

2. The vehicle-mounted speed sensor driving device according to claim 1, characterized in that: A bearing seat (17) is installed on the right side of the upright plate (9), and the inner ring of the bearing seat (17) is connected to the surface of the connecting shaft (16).

3. The vehicle-mounted speed sensor driving device according to claim 2, characterized in that: An mounting plate (7) is installed on the inner side of the outer shell (1) on the right side of the upright plate (9). A circular opening is provided on the surface of the mounting plate (7), and a bearing (8) is installed in the opening. The inner ring of the bearing (8) is in contact with the surface of the connecting shaft (19) but is not fixedly connected.

4. The vehicle-mounted speed sensor driving device according to claim 3, characterized in that: Mounting seat one (2) is installed on the upper end face of the outer shell (1). Photoelectric speed sensor (3) is installed on mounting seat one (2), and the detection end of photoelectric speed sensor (3) is aligned with the middle of gear (18). Mounting seat two (4) is installed on the right side face of the outer shell (1). Hall speed sensor (5) is installed on mounting seat two (4), and the detection end extends into the square groove on the end face of connecting shaft two (19).

5. The vehicle-mounted speed sensor driving device according to claim 4, characterized in that: The inner side of the outer shell (1) is symmetrically equipped with baffles (21) on the top and bottom surfaces, and the left side of the baffles (21) is in contact with the right side of the upright plate (9).

6. The vehicle-mounted speed sensor driving device according to claim 5, characterized in that: The front side of the housing (1) is equipped with a display screen (6), wherein the side of the upright plate (9) facing the display screen (6) is flat and does not contact the rear side of the display screen (6).

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