Automobile braking force detection device

Abstract

The utility model relates to the technical field of automobile performance detection, and particularly discloses an automobile braking force detection device, which comprises a fixed bottom plate, a fixed base and a sliding base, the sliding base is in sliding connection with the surface of the fixed bottom plate, and an adjusting mechanism is arranged between the fixed base and the sliding base. The fixed base and the sliding base are each provided with a detection assembly, each detection assembly comprises a detection groove, a detection roller pair, an infrared sensor, a plurality of motors and a controller, the end, away from the fixed base, of the detection groove of the sliding base is further provided with an anti-retreating assembly, guiding pieces are symmetrically arranged on the two sides of the fixed base plate, and retreating groove supporting pieces are further arranged in the detection grooves; the problems that traditional automobile braking force detection equipment is poor in adaptability to different automobile types, and large-scale unified automobile braking force detection is inconvenient to use are solved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile performance detection, and specifically discloses an automobile braking force detection device. Background Art

[0002] Vehicle braking force refers to the ability of a vehicle to slow down, stop, or maintain a certain speed when descending a slope. The braking process involves artificially increasing the vehicle's driving resistance through wheel braking, engine braking, or specialized auxiliary braking. Braking force is determined by the interaction between the braking wheels (usually the front and rear wheels) and the road surface, and the tangential reaction of the vehicle's wheels in the opposite direction (i.e., braking force). Its maximum value is determined by the adhesion between the tires and the road surface. Braking force is one of the vehicle's key performance characteristics and is directly related to traffic safety.

[0003] Existing automobile braking force detection is generally achieved through equipment, but the existing automobile braking force detection equipment has poor adaptability to different models and is not convenient for large-scale unified automobile braking force detection. Therefore, in view of this, the inventor provides an automobile braking force detection device to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the traditional automobile braking force detection equipment has poor adaptability to different models and is not convenient for large-scale unified automobile braking force detection.

[0005] To achieve the above-mentioned objectives, the basic solution of the present invention provides a vehicle braking force detection device, comprising a fixed base for accommodating vehicle travel, a fixed base disposed on the fixed base and configured to detect the braking force of the vehicle's front wheels, and a sliding base disposed on the fixed base and configured to detect the braking force of the vehicle's rear wheels. The sliding base is slidably connected to the surface of the fixed base, an adjustment mechanism is provided between the fixed base and the sliding base for adjusting the spacing therebetween, and a detection assembly for detecting the vehicle's braking force is provided on both the fixed base and the sliding base. The detection assembly comprises a detection groove for accommodating a vehicle wheel for detection, a detection roller pair disposed within the detection groove, infrared sensors disposed on the outsides of the fixed base and the sliding base, a plurality of motors for driving the detection roller pair, and a controller for controlling the infrared sensors and the motors. An anti-return assembly is further provided at one end of the detection groove of the sliding base away from the fixed base for preventing the vehicle wheel from being forced to retreat. Guide members are symmetrically provided on both sides of the fixed base for guiding and limiting the sliding base, and each detection groove is further provided with a groove support for supporting the vehicle wheel to leave the detection groove.

[0006] The principles and effects of this basic solution are:

[0007] 1. Compared with the prior art, the present invention realizes adjustment of the distance between the two sets of detection components by setting a fixed base and a sliding base to slide and adjust the distance on the fixed base plate, and uses an adjustment mechanism to drive the sliding base to slide, so as to adapt to the distance between the front wheels and rear wheels of different cars, thereby facilitating the braking force detection of cars of different models. It is easy to use, and by setting an anti-return component, it is convenient to provide a barrier for the rear wheels of the car to prevent the car from moving backward due to the interaction force of the detection components during the detection process, thereby solving the problem that traditional automobile braking force detection equipment has poor adaptability to different models and is not convenient for large-scale unified automobile braking force detection.

[0008] 2. Compared with the existing technology, the utility model sets a detection component, uses the detection groove to accommodate and limit the wheels of the car, uses the motor to drive the detection roller pair to rotate to detect the braking force of the car wheels, and uses the infrared sensor to detect and regulate the detection process. The operation is simple, so that the car can be stopped more accurately on the fixed base plate.

[0009] Furthermore, the adjustment assembly includes an electrically operated telescopic rod symmetrically positioned between the fixed base and the sliding base on a side proximal to the sliding base, a plurality of support guide slots uniformly positioned at the top end of one side of the sliding base, and a plurality of support guide rods uniformly positioned at the top end of one side of the fixed base and slidable within the support guide slots. The electrically operated telescopic rod is electrically connected to a controller. The electrically operated telescopic rod drives the sliding base relative to the fixed base, thereby facilitating adjustment of the spacing between the detection slots of the two sets of detection assemblies. The slidable connection between the support guide rods and the support guide slots provides structural support for the vehicle as it moves away from the fixed base after testing is complete.

[0010] Furthermore, the detection roller pair includes a main roller whose ends are symmetrically connected to the inner ends of the detection slot and are located at the front end of the detection slot; a secondary roller whose ends are symmetrically connected to the inner ends of the detection slot and are located at the rear end of the detection slot; and a bottom roller whose ends are symmetrically connected to the inner ends of the detection slot and are located between the main roller and the secondary roller. The main roller and the secondary roller rotate in opposite directions, and the main roller and the secondary roller are each coaxially connected to a motor. The provision of the main roller, the secondary roller, and the bottom roller facilitates the accommodation and positioning of the vehicle's wheels, and the use of the motor to drive the rotation of the detection roller pair facilitates the detection of the vehicle's braking force.

[0011] Furthermore, the groove support includes electric lift rods symmetrically arranged on the inner bottom surface of the inspection groove and on both sides of the bottom roller. The electric lift rods are electrically connected to the controller. The electric lift rods facilitate support for the vehicle wheels after the vehicle inspection is completed, preventing the vehicle wheels from becoming stuck in the inspection groove and being unable to move away.

[0012] Furthermore, the anti-return assembly includes an electric lift plate located at the inner bottom of the detection slot of the sliding base, and the electric lift plate is electrically connected to the controller. The electric lift plate facilitates providing a position-limiting barrier for the rear wheels of the vehicle during the process of detecting the braking force of the vehicle, thereby preventing the vehicle from rolling back due to the force.

[0013] Furthermore, the guide member includes rollers symmetrically connected to the outer ends of the sliding base and guide plates provided at both ends of the fixed base and located outside the sliding base, and the rollers can slide along the inner sides of the guide plates. By arranging the rollers to slide along the guide plates, it is convenient to provide guidance for the sliding adjustment of the sliding base. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 A structural perspective diagram of a vehicle braking force detection device proposed in an embodiment of the present application is shown;

[0016] Figure 2 A front view of the structure of a vehicle braking force detection device proposed in an embodiment of the present application is shown;

[0017] Figure 3 A structural side view of an automobile braking force detection device proposed in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0018] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0019] The figure marks in the drawings of the specification include: fixed base plate 1, fixed base 2, sliding base 3, detection slot 4, infrared sensor 5, motor 6, installation chamber 7, electric telescopic rod 8, support guide groove 9, support guide rod 10, main roller 11, auxiliary roller 12, bottom roller 13, electric lifting rod 14, electric lifting plate 15, guide plate 16, roller 17.

[0020] A vehicle braking force detection device, for example Figure 1As shown: it includes a fixed base plate 1 for accommodating the movement of a car, a fixed base 2 provided on the fixed base plate 1 and used to detect the braking force of the front wheels of the car, and a sliding base 3 provided on the fixed base plate 1 and used to detect the braking force of the rear wheels of the car. The sliding base 3 is slidably connected to the surface of the fixed base plate 1. An adjustment mechanism for adjusting the distance between the sliding base 3 and the sliding base 3 is provided between the fixed base 2 and the sliding base 3. A detection component for detecting the braking force of the car is respectively provided on the fixed base 2 and the sliding base 3. Each set of detection components includes a detection groove 4 for accommodating a car wheel for detection, a detection roller pair provided in the detection groove 4, an infrared sensor 5 respectively provided on the outside of the fixed base 2 and the sliding base 3, three motors 6 for driving the detection roller pair to operate, and a controller for controlling the infrared sensor 5 and the motor 6, wherein, as shown in FIG. Figure 2 As shown, the interior of the fixed base 2 and the sliding base 3 is provided with an installation chamber 7 for installing the motor 6, the installation chamber 7 is located on the right side of the detection slot 4 and is connected to the detection slot 4, the controller includes but is not limited to a PLC controller, the detection slot 4 of the sliding base 3 is further provided with an anti-retreat component at one end away from the fixed base 2 for preventing the wheels of the car from being forced to retreat, and guide members for guiding and limiting the sliding base 3 are symmetrically provided on both sides of the fixed base plate 1, and the detection slot 4 is further provided with a retreat support member for supporting the wheels of the car to leave the detection slot 4.

[0021] Among them, such as Figure 1 and Figure 3 As shown, the adjustment assembly includes an electric telescopic rod 8 symmetrically arranged between the fixed base 2 and the side close to the sliding base 3, a plurality of support guide grooves 9 evenly arranged at the top end of one side of the sliding base 3, and a plurality of support guide rods 10 evenly arranged at the top end of one side of the fixed base 2 and capable of sliding in the support guide grooves 9. The electric telescopic rod 8 is electrically connected to the controller.

[0022] Among them, such as Figure 3 As shown, the detection roller pair includes a main roller 11 whose two ends are symmetrically connected to the inner ends of the detection groove 4 and are located at the front end of the detection groove 4, an auxiliary roller 12 whose two ends are symmetrically connected to the inner ends of the detection groove 4 and are located at the rear end of the detection groove 4, and a bottom roller 13 that is symmetrically connected to the inner ends of the detection groove 4 and is located between the main roller 11 and the auxiliary roller 12. The main roller 11 and the auxiliary roller 12 rotate in opposite directions, and the main roller 11 and the auxiliary roller 12 are respectively coaxially connected to the motor 6.

[0023] Among them, such as Figure 3 As shown, the groove withdrawal support member includes electric lifting rods 14 symmetrically arranged on the inner bottom surface of the detection groove 4 and located on both sides of the bottom roller 13. The electric lifting rods 14 are electrically connected to the controller.

[0024] Among them, such as Figure 1 and Figure 3As shown, the anti-retraction component includes an electric lifting plate 15 provided at the inner bottom of the detection groove 4 of the sliding base 3, and the electric lifting plate 15 is electrically connected to the controller.

[0025] Among them, such as Figure 1 and Figure 2 As shown, the guide member includes rollers 17 symmetrically connected to the outer ends of the sliding base 3 and guide plates 16 provided at both ends of the fixed base 1 and located on the outer side of the sliding base 3, and the rollers 17 can slide along the inner side of the guide plates 16.

[0026] In the specific implementation process of the present invention, the distance between the fixed base 2 and the sliding base 3 is first adjusted according to the model of the car to be detected and the distance between the front and rear vehicles. When adjusting, it is only necessary to drive the electric telescopic rod 8 by the controller to extend or retract, and adjust the distance between the detection roller pair on the sliding base 3 and the detection roller pair on the fixed base 2 to match the model of the car. Then, the controller controls the electric lifting plate 15 to descend to a height lower than the notch of the detection groove 4, and controls the electric lifting rod 14 to rise to the same height as the main roller 11 and the auxiliary roller 12, and then the car is moved along the fixed base 2. The base plate 1 is driven toward the top of the sliding base 3 and the fixed base 2 until the front wheels of the vehicle stop on the electric lift rod 14 on the fixed base 2 and the rear wheels of the vehicle stop on the electric lift rod 14 on the sliding base 3, and the infrared sensor 5 can receive signals normally. Then, the controller controls the electric lift rod 14 to descend to a height below the bottom roller 13, so that the vehicle wheels contact the main roller 11, the auxiliary roller 12 and the bottom roller 13. The controller controls the electric lift rod 14 to rise to a height above the main roller 11 and the auxiliary roller 12, and the vehicle braking force can be tested. During the test, the controller controls each motor 6 to start, and the motor 6 drives each main roller 11 and the auxiliary roller 12 to rotate in the opposite direction. The wheels rotate with the rotation of the main roller 11 and the auxiliary roller 12 until the speed of the main roller 11 and the auxiliary roller 12 increases to a level where the wheels no longer rotate. The controller then records the relevant speed data at this time, and calculates the vehicle's braking force, completing the test of the vehicle's braking force. Next, the controller controls the electric lifting rod 14 to rise to be level with the main roller 11 and the auxiliary roller 12, thereby lifting the wheels of the car, and finally driving the car away from the fixed base 1 from the fixed base 2 and the sliding base 3.

[0027] Compared with the prior art, the present invention realizes adjustment of the distance between the two groups of detection components by setting the sliding and spacing adjustment of the fixed base 2 and the sliding base 3 on the fixed base plate 1, and uses the adjustment mechanism to drive the sliding base 3 to slide, so as to adapt to the distance between the front wheels and rear wheels of different cars, thereby facilitating the braking force detection of cars of different models. It is easy to use, and by setting the anti-return component, it is convenient to provide blocking for the rear wheels of the car to prevent the car from moving backward due to the interaction force of the detection components during the detection process, thereby solving the problem that the traditional automobile braking force detection equipment has poor adaptability to different models and is not convenient for large-scale unified automobile braking force detection.

[0028] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A vehicle braking force detection device, characterized in that: The invention relates to a vehicle brake system, wherein the first and second brake assemblies are connected to each other via a plurality of channels and a plurality of channels respectively connected to the first and second brake assemblies, wherein the first and second brake assemblies are connected to each other via a plurality of channels and a plurality of channels respectively connected to the first and second brake assemblies.

2. The vehicle braking force detection device according to claim 1, characterized in that: The adjustment mechanism includes an electric telescopic rod symmetrically arranged between the fixed base and the side close to the sliding base, a plurality of support guide grooves evenly arranged at the top end of one side of the sliding base, and a plurality of support guide rods evenly arranged at the top end of one side of the fixed base and capable of sliding in the support guide grooves. The electric telescopic rod is electrically connected to the controller.

3. The vehicle braking force detection device according to claim 2, characterized in that: The detection roller pair includes a main roller whose two ends are symmetrically connected to the inner ends of the detection groove and located at the front end of the detection groove, an auxiliary roller whose two ends are symmetrically connected to the inner ends of the detection groove and located at the rear end of the detection groove, and a bottom roller whose two ends are symmetrically connected to the inner ends of the detection groove and located between the main roller and the auxiliary roller. The main roller and the auxiliary roller rotate in opposite directions, and the main roller and the auxiliary roller are respectively coaxially connected to the motor.

4. The vehicle braking force detection device according to claim 3, characterized in that: The groove withdrawal support member includes electric lifting rods symmetrically arranged on the inner bottom surface of the detection groove and located on both sides of the bottom roller, and the electric lifting rods are electrically connected to the controller.

5. The vehicle braking force detection device according to claim 4, characterized in that: The anti-retraction component includes an electric lifting plate arranged on the inner bottom of the detection groove of the sliding base, and the electric lifting plate is electrically connected to the controller.

6. The vehicle braking force detection device according to claim 5, characterized in that: The guide member includes rollers symmetrically connected to the two ends of the outer side of the sliding base and guide plates arranged at the two ends of the fixed base and located outside the sliding base, and the rollers can slide along the inner side of the guide plates.

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