CN214775843U

CN214775843U - Point braking deviation monitoring device of vehicle

Info

Publication number: CN214775843U
Application number: CN202120949971.6U
Authority: CN
Inventors: 刘小畅; 冯双昌; 张鹏曌; 吕勤; 王博; 吴峥
Original assignee: Shanghai Special Equipment Supervision and Inspection Technology Institute
Current assignee: Shanghai Special Equipment Supervision and Inspection Technology Institute
Priority date: 2021-05-06
Filing date: 2021-05-06
Publication date: 2021-11-19
Anticipated expiration: 2031-05-06

Abstract

The utility model provides a point brake off tracking monitoring device of a vehicle, which comprises two Hall sensors, a plurality of magnets, a processor and early warning equipment; the Hall sensor, the early warning device and the first brake sensor are all connected with the processor; the first brake sensor is used for detecting a brake signal and sending the brake signal to the processor; a circle of magnets are arranged on one side, close to the wheel axle, of the wheel hub of each tire, and the centers of the circles of magnets are arranged on the wheel axle; the two Hall sensors are respectively close to the two tires and are arranged on the wheel axle, each Hall sensor respectively corresponds to one circle of magnet, and the minimum distance between each Hall sensor and the corresponding circle of magnet is smaller than or equal to the sensing distance of the Hall sensor; two circles of magnets on the two tires are symmetrical about a perpendicular bisector of the wheel axle; the two hall sensors are symmetrical about a perpendicular bisector of the wheel axle. The device can monitor whether the brake system of the vehicle is abnormal or not in real time, and can find out whether the brake system of the vehicle is abnormal or not in time.

Description

Point braking deviation monitoring device of vehicle

Technical Field

The utility model relates to a driver examination assessment technical field, in particular to off tracking monitoring devices is stopped to some of vehicle.

Background

Before a driver drives a vehicle on duty, the driver needs to be subjected to professional examination and evaluation, if the result of the examination and evaluation is qualified, the driver can take a driving license, and the driver can take the driving license and then carry out the certification on duty.

For example, for a forklift driver, the driver needs to drive the forklift in an examination place according to a specified route, the specified route comprises a straight line, and in the process of straight-line driving of the forklift, the driver needs to perform an on-off brake operation on a brake of the forklift. Two front wheels of the forklift are respectively provided with a brake pad, the rear wheel is not provided with a brake pad, and the rear wheel is used for steering. If the brake system is normal, the forward turning distance of the two front wheels should be equal or very close when the driver brakes. However, if the brake system has problems, for example, the brake pads on the two front wheels are worn to different degrees, so that the forward rotation distances of the two front wheels are greatly different when the brake system is braked, a preset threshold value may be exceeded, and the forklift cannot keep running straight, and the test evaluation of the driver is not qualified. When a problem occurs in the brake system, the forklift can be used for examination after being maintained, otherwise, in the examination, the problem of the forklift per se causes that the examination and evaluation of a driver are unqualified, but the driving technology of the driver is unqualified.

However, at present, it is usually detected whether the braking system of the vehicle is abnormal by means of manual maintenance, so that it is not possible to find out whether the braking system of the vehicle is abnormal in time.

SUMMERY OF THE UTILITY MODEL

The utility model provides a deviation monitoring devices is stopped to point of vehicle to solve the technical problem whether the braking system of the discovery vehicle that artifical mode of overhauing can not be timely is unusual.

In order to solve the technical problem, the utility model provides a point braking off tracking monitoring device of a vehicle, which comprises two Hall sensors, a plurality of magnets, a processor and early warning equipment; the vehicle comprises a first brake sensor, a wheel axle and two tires, wherein the two tires are respectively arranged at two ends of the wheel axle; the Hall sensor, the early warning device and the first brake sensor are all connected with the processor; the first brake sensor is used for detecting a brake signal and sending the brake signal to the processor; a circle of magnets are arranged on one side, close to the wheel axle, of the wheel hub of each tire, the center of each circle of magnets is arranged on the wheel axle, and each circle of magnets comprises a plurality of magnets arranged at equal intervals; the two Hall sensors are respectively close to two tires and are arranged on the wheel axle, each Hall sensor respectively corresponds to a circle of magnet, and the minimum distance between each Hall sensor and the corresponding circle of magnet is smaller than or equal to the sensing distance of the Hall sensor; the two circles of magnets on the two tires are symmetrical about a perpendicular bisector of the axle; the two hall sensors are symmetrical about a perpendicular bisector of the axle.

Optionally, the point braking deviation monitoring devices still includes the second brake inductor, the second brake inductor install below the brake, and with the treater is connected, the second brake inductor be used for to the treater sends brake signal.

Optionally, the ring of magnets comprises 30-40 magnets.

Optionally, the distance between two adjacent magnets in the ring of magnets is 15mm to 25 mm.

Optionally, the magnet is cylindrical, one bottom surface of the cylindrical magnet is mounted on the hub corresponding to the cylindrical magnet, and the other bottom surface faces the measurement port of the hall sensor corresponding to the cylindrical magnet.

Optionally, the diameter of the cylindrical magnet is 5 mm-15 mm.

Optionally, the hall sensor is fixed on the wheel shaft through a mounting bracket, and the height of the mounting bracket is adjustable.

Optionally, the hall sensor is parallel to the wheel axle; when the measuring port of the Hall sensor is aligned with the magnet, the central line of the measuring port of the Hall sensor is superposed with the central line of the magnet.

Optionally, the magnet is fixed to the hub by glue.

Optionally, the vehicle is a forklift, and the tire is a front wheel.

The utility model provides a pair of off tracking monitoring devices is braked to point of vehicle can be automatic and whether the pivoted apart from the deviation is greater than predetermined threshold value when the point is braked for two epaxial tires of real-time monitoring, and then monitors whether the braking system of vehicle is unusual in real time, whether the braking system of discovery vehicle that can be timely is unusual.

Drawings

Fig. 1 is a schematic block diagram of a point braking deviation monitoring device for a vehicle according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a vehicle after installation of the spot braking deviation monitoring device according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a second brake sensor installed below a brake according to an embodiment of the present invention.

[ reference numerals are described below ]:

hall sensor-1, magnet-2, wheel axle-3, tyre-4, mounting bracket-5, brake-6, second brake sensor-7, vehicle bottom plate-8, rolling bearing-9 and wheel hub-10.

Detailed Description

In order to make the objects, advantages and features of the present invention clearer, the following description of the present invention provides a spot braking deviation monitoring device for a vehicle, which is described in further detail with reference to the accompanying drawings. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

In the description of the present invention, the terms "first", "second", etc. are used for convenience of description and reference, but are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined by a qualifier such as "first," "second," etc., may explicitly or implicitly include one or more of that feature.

As shown in fig. 1 and fig. 2, the embodiment provides a point brake deviation monitoring device for a vehicle, which includes two hall sensors 1, a plurality of magnets 2, a processor and an early warning device; the vehicle comprises a first brake sensor, a wheel axle 3 and two tires 4, wherein the two tires 4 are respectively arranged at two ends of the wheel axle 3; the Hall sensor 1, the early warning device and the first brake sensor are all connected with the processor; the first brake sensor is used for detecting a brake signal and sending the brake signal to the processor; a circle of magnets 2 are arranged on one side, close to the wheel axle 3, of the wheel hub 10 of each tire 4, the circle of magnets 2 are centered on the wheel axle 3, and each circle of magnets 2 comprises a plurality of magnets 2 arranged at equal intervals; the two Hall sensors 1 are respectively close to two tires 4 and are arranged on the wheel axle 3, each Hall sensor 1 respectively corresponds to one circle of magnet 2, and the minimum distance between each Hall sensor 1 and the corresponding circle of magnet 2 is smaller than or equal to the sensing distance of the Hall sensor 1; the two circles of magnets 2 on the two tires 4 are symmetrical about a perpendicular bisector of the axle 3; the two hall sensors 1 are symmetrical about a perpendicular bisector of the wheel axle 3. Wherein, the wheel shaft 3 and the wheel hub 10 are connected through a rolling bearing 9. The point brake deviation monitoring device for the vehicle can be applied to a forklift, an automobile or other types of vehicles. The early warning device may be a warning lamp or a buzzer.

The spot braking deviation monitoring device of the vehicle can be installed on a vehicle for driver test evaluation. When a driver tests and evaluates the straight line driving test, if the driver stops the brake, a first forklift sensor of the vehicle detects a brake signal and sends the brake signal to the processor, and after the processor receives the brake signal, the processor starts to calculate the number of wave crests output by the two Hall sensors 1. When the magnet 2 is aligned with the Hall sensor 1, the Hall sensor 1 outputs a wave peak value, and the wave peak value is sent to processing; when the hub 10 between the two magnets 2 is over against the Hall sensor 1, the Hall sensor 1 outputs a valley value; the output value of the hall sensor 1 changes between the peak and the valley as the wheel rotates. The processor calculates the peak difference value of the two Hall sensors 1 in the inching and braking process, and the larger the peak difference value is, the larger the deviation of the rotating distance of the two wheels is, namely the larger the deviation of the rolling distance of the two wheels on the ground is. If the difference between the peaks is greater than a predetermined threshold, indicating that the distance between the two wheels turning forward or backward is too great, the braking system of the vehicle may fail, for example, due to the fact that the brake pads are worn to different degrees. When the processor calculates that the peak difference value of the two Hall sensors 1 is larger than a preset threshold value, the processor sends an early warning signal to the early warning device, the early warning device can send out warning sounds or warning voices according to the early warning signal so as to remind a driver and a prisoner that the brake system of the currently used vehicle is abnormal, and the maintainer needs to maintain the brake system of the vehicle.

The point braking off tracking monitoring devices of vehicle that this embodiment provided can be automatically and real-time monitor whether two tires 4 on same shaft 3 are greater than predetermined threshold value when the point is braked the distance deviation of rotation, and then whether the braking system of real-time supervision vehicle is unusual, whether the braking system of discovery vehicle that can be timely is unusual.

Optionally, as shown in fig. 3, the point braking deviation monitoring device further includes a second brake sensor 7, the second brake sensor 7 is installed below the brake 6 and connected to the processor, and the second brake sensor 7 is configured to send a brake signal to the processor. The brake 6 is mounted on the vehicle floor 8, and the brake 6 can also be called a brake pedal. The second brake sensor 7 is a brake sensor additionally arranged, the second brake sensor 7 is not a brake sensor of the vehicle, and the brake sensor of the vehicle is the first brake sensor. In the point braking deviation monitoring device for the vehicle, only one of the first brake sensor and the second brake sensor 7 is needed. By using the second brake sensor 7, the damage to the circuit structure and the mechanical structure of the vehicle can be prevented when the first brake sensor is used. Since the first brake sensor of the vehicle is usually arranged in the brake, the brake can also be called a brake pedal, and if misoperation occurs in the process of removing the brake, the circuit structure and the mechanical structure of the vehicle can be damaged.

Optionally, as shown in fig. 2, the ring of magnets 2 includes 30 to 40 magnets 2. In practice, the number of the magnets 2 can be determined according to the diameter of the hub, for example, 36 magnets 2 are used to form a circle of the magnets 2.

Alternatively, as shown in fig. 2, the distance between two adjacent magnets 2 in the ring of magnets 2 is 15mm to 25 mm. In actual use, the distance between two adjacent magnets 2 in the circle of magnets 2 can be determined according to the sensing distance of the hall sensor 1, for example, the distance between two adjacent magnets 2 in the circle of magnets 2 can be set to 20 mm.

Alternatively, as shown in fig. 2, the magnet 2 is cylindrical, one bottom surface of the cylindrical magnet 2 is mounted on the hub corresponding thereto, and the other bottom surface faces the measurement port of the hall sensor 1 corresponding thereto. The bottom surface of the cylindrical magnet 2 is circular, and compared with a square bottom surface, the circular bottom surface can increase the sensing area between the bottom surface of the magnet 2 and the hall sensor 1. In other embodiments, the shape of the magnet 2 may be other shapes.

Alternatively, as shown in fig. 2, the diameter of the cylindrical magnet 2 is 5mm to 15 mm. In actual use, the diameter of the magnet 2 may be determined according to the sensing distance of the hall sensor 1 and the shape and size of the hub, and for example, the diameter of the magnet 2 may be set to 10 mm.

Alternatively, as shown in fig. 2, the hall sensor 1 is fixed on the wheel axle 3 through a mounting bracket 5, and the height of the mounting bracket 5 is adjustable. Because the height of the mounting bracket 5 can be adjusted, the height of the hall sensor 1 relative to the hub can also be adjusted, so that parameters such as the diameter of the circle of magnets 2, the distance between adjacent magnets 2 in the circle of magnets 2, the size of the magnets 2 and the like can be adjusted.

Alternatively, as shown in fig. 2, the hall sensor 1 is parallel to the wheel axle 3; when the measuring port of the Hall sensor 1 is aligned with the magnet 2, the central line of the measuring port of the Hall sensor 1 is superposed with the central line of the magnet 2. Therefore, the induction time between the Hall sensor 1 and the magnet 2 can be increased, and the stability of the output value of the Hall sensor 1 is improved.

Alternatively, as shown in fig. 2, the magnet 2 is fixed to the hub by glue. Magnet 2 passes through glue to be fixed on the wheel hub, conveniently fixes magnet 2 like this. In other embodiments, the magnet 2 may be wrapped in a metal frame, and the metal frame may be fixed to the hub by bolts.

Alternatively, as shown in fig. 2, the vehicle is a forklift, and the tire 4 is a front wheel. The point braking off tracking monitoring devices of vehicle that this embodiment provided can install on fork truck to monitor fork truck's braking system.

In summary, the utility model provides a point brake off tracking monitoring device of a vehicle, which comprises two hall sensors 1, a plurality of magnets 2, a processor and an early warning device; the vehicle comprises a first brake sensor, a wheel axle 3 and two tires 4, wherein the two tires 4 are respectively arranged at two ends of the wheel axle 3; the Hall sensor 1, the early warning device and the first brake sensor are all connected with the processor; the first brake sensor is used for detecting a brake signal and sending the brake signal to the processor; a circle of magnets 2 are arranged on one side, close to the wheel axle 3, of the wheel hub of each tire 4, the circle of magnets 2 are centered on the wheel axle 3, and each circle of magnets 2 comprises a plurality of magnets 2 arranged at equal intervals; the two Hall sensors 1 are respectively close to two tires 4 and are arranged on the wheel axle 3, each Hall sensor 1 respectively corresponds to one circle of magnet 2, and the minimum distance between each Hall sensor 1 and the corresponding circle of magnet 2 is smaller than or equal to the sensing distance of the Hall sensor 1; the two circles of magnets 2 on the two tires 4 are symmetrical about a perpendicular bisector of the axle 3; the two hall sensors 1 are symmetrical about a perpendicular bisector of the wheel axle 3. The utility model provides a pair of off tracking monitoring devices is braked to point of vehicle can be automatic and whether pivoted distance deviation is greater than predetermined threshold value when the point is braked in monitoring two tires 4 on same shaft 3 in real time, and then whether the braking system of real time supervision vehicle is unusual, whether the braking system of discovery vehicle that can be timely is unusual.

The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art according to the above disclosure are within the scope of the present invention.

Claims

1. The device for monitoring the point braking deviation of the vehicle is characterized by comprising two Hall sensors, a plurality of magnets, a processor and early warning equipment; the vehicle comprises a first brake sensor, a wheel axle and two tires, wherein the two tires are respectively arranged at two ends of the wheel axle; the Hall sensor, the early warning device and the first brake sensor are all connected with the processor; the first brake sensor is used for detecting a brake signal and sending the brake signal to the processor; a circle of magnets are arranged on one side, close to the wheel axle, of the wheel hub of each tire, the center of each circle of magnets is arranged on the wheel axle, and each circle of magnets comprises a plurality of magnets arranged at equal intervals; the two Hall sensors are respectively close to two tires and are arranged on the wheel axle, each Hall sensor respectively corresponds to a circle of magnet, and the minimum distance between each Hall sensor and the corresponding circle of magnet is smaller than or equal to the sensing distance of the Hall sensor; the two circles of magnets on the two tires are symmetrical about a perpendicular bisector of the axle; the two hall sensors are symmetrical about a perpendicular bisector of the axle.

2. The device for monitoring the deviation of the point brake of the vehicle as claimed in claim 1, further comprising a second brake sensor installed under the brake and connected to the processor, wherein the second brake sensor is used for sending a brake signal to the processor.

3. The device for monitoring the deviation of the point brake of the vehicle as claimed in claim 1, wherein said ring of magnets comprises 30-40 magnets.

4. The apparatus for monitoring deviation of point brake of vehicle according to claim 1, wherein the distance between two adjacent magnets in said one ring of magnets is 15mm to 25 mm.

5. The device for monitoring the deviation of point brake of the vehicle as claimed in claim 1, wherein the magnet is cylindrical in shape, one bottom surface of the cylindrical magnet is mounted on the hub corresponding to the magnet, and the other bottom surface faces the measuring port of the hall sensor corresponding to the magnet.

6. The device for monitoring the deviation of the point brake of the vehicle as claimed in claim 5, wherein the diameter of the cylindrical magnet is 5mm to 15 mm.

7. The device for monitoring the deviation of the point brake of the vehicle as claimed in claim 1, wherein the hall sensor is fixed on the wheel shaft through a mounting bracket, and the height of the mounting bracket is adjustable.

8. The spot brake tracking monitoring device for a vehicle according to claim 1, wherein said hall sensor is parallel to said wheel axle; when the measuring port of the Hall sensor is aligned with the magnet, the central line of the measuring port of the Hall sensor is superposed with the central line of the magnet.

9. The device for monitoring the deviation of point brake of vehicle as claimed in claim 1, wherein said magnet is fixed on said wheel hub by glue.

10. The device for monitoring the deviation of the point brake of the vehicle as claimed in claim 1, wherein the vehicle is a forklift and the tire is a front wheel.